Sequester

Abstract

A suppressor system for reducing exit pressure, flash, and noise of an air gun or firearm, comprising multiple expansion chambers arranged sequentially, each in direct, fluid communication with the bore. Valves sequester the high pressure propellant gasses inside each chamber, away from the bore. Vents with flow-restricting orifices provide extended, controlled decompression. Interaction of the bore pressure with the previous expansion chamber lowers the bore pressure presented to the following, downstream expansion chamber. This stepwise, exponential reduction in bore pressure occurs multiple times before the projectile exits the device. This invention uniquely reduces both uncorking pressure and decompression pressure in the forward direction out the muzzle, and unwanted backward pressure that causes blow back and gas face. It can be modular, with the choice of configuration and number of chambers. Attenuating, muffler materials may be added. This invention provides superior noise, pressure and flash suppression over conventional suppressor technologies.

Description

RELATED APPLICATION

[0001] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 752,213 “Musflatus”, filed Jan. 31, 2025. This Provisional Patent application is incorporated herein by reference.TECHNICAL FIELD

[0002] The present disclosure generally relates to the field of silencers, sound suppressors, and flash suppressors for air guns and firearms. More specifically, the present disclosure introduces a novel method for achieving unprecedented levels of sound and pressure attenuation by sequentially redirecting propellant gases through valves into a plurality of pressure-sequestering expansion chambers.BACKGROUND

[0003] The following description includes information that may be useful in understanding the present disclosure. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed subject matter, or that any publication specifically or implicitly referenced is prior art.

[0004] The motivation of the inventor of the present invention is to help prevent hearing damage and tinnitus for people who are exposed to loud gun shots. Air gun and firearm suppressors have been developed to reduce the audible and visible signatures of a gunshot by controlling the release of high-pressure propellant gases. Conventional suppressors typically employ a series of internal baffles and communicating expansion chambers to slow down and redirect gas flow, thereby reducing sound intensity and muzzle flash.

[0005] Various approaches have been explored to improve suppressor performance, including modifications to baffle geometries, increased communicating chamber volumes, and the incorporation of sound-absorbing materials. However, these methods have not fully eliminated the challenges associated with high-pressure gas release and rapid decompression.

[0006] One persistent issue with existing suppressor designs, because of the all internally communicating space, is the incomplete containment and uncontrolled release of propellant gases. High-pressure gases accelerate suddenly upon projectile exit, generating a loud blast. While traditional suppressors attempt to mitigate these effects, their effectiveness remains limited by the rapid uncontrolled decompression of gases which is caused by continuous communication of internal spaces.

[0007] While suppressors have the desirable effect of reducing the sound pressure of the report by slowing the release of gasses out of the front of the gun, there is an unwanted effect of this slowing. During the decompression stage, the pressure captured by the suppressor is released into the bore over a longer amount of time both forward (desirable) and backward (undesirable). In the firing cycle of a semi automatic weapon, when the action opens to eject the spent case and reload another round, the ejection port of the action becomes a low resistance path for the pressurized gas from the suppressor to escape. The expanding gases and still burning gun powder particles sent backward are experienced by the shooter as excess gas pressure in the shooter's face, and this blow back is referred to as gas face. It can also increase parts wear and can cause cycling issues. Generally, quieter suppressors cause more back pressure, resulting in more gas face.

[0008] Accordingly, there is a need for an improved suppressor design that more effectively manages propellant gas pressure, reduces sound signature, and minimizes muzzle flash beyond the capabilities of existing technologies.SUMMARY

[0009] This summary is provided to introduce concepts related to a system for reducing the flash and sound signature of an air gun or firearm. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

[0010] The present disclosure relates to a suppressor system designed to reduce the flash and sound signature of an air gun or firearm, and gas face, when used with a semi-automatic firearm, by effectively managing high-pressure propellant gases. In the case of an integral to barrel configuration, the system includes a barrel bore, which is usually rifled, in which the projectile is touching and guided by the rifling of the barrel. In the case of a removable muzzle device configuration, the projectile travels within a central tube / bore, in free flight, not touching the inner walls of the central tube, while a tight tolerance gap between the projectile and the inner walls of the central tube minimizes “blow by” of the expanding gases generated upon firing from leaking around and ahead of the projectile. Two or more expansion chambers are in fluid communication with the bore, each chamber configured to sequentially receive and temporarily sequester propellant gases. Positioned along the bore, one or more valves selectively direct gases into the expansion chambers, ensuring that the following chamber receives only the stepped-down bore pressure reduced by the preceding chamber.

[0011] The suppressor system employs one or more vents associated with expansion chamber(s) which are flow-restricting orifices designed to gradually release sequestered gases at a controlled, reduced rate. These flow restricting orifices may be located in various places, such as between the walls of expansion chambers, or through a path that leads to the exterior of the device, or even within a valve. In the latter configuration, the vent makes the valve into a two-way valve. Initially during the expansion chamber pressurization phase, gases flow through the valve from the bore into the expansion chamber with high flow volume and low restriction. During the expansion chamber decompression phase, the exit decompression flow is at a much slower rate, when it goes in the opposite direction from the expansion chamber back into the bore or alternative exit(s) through the flow restricting orifice(s) located within the valve(s). Therefore the decompression of the sequestered pressure chamber takes significantly longer than filling. This significantly longer duration of time of controlled decompression significantly lowers the exit pressure and thus decreases sound pressure of the decompression of the suppressor. Any number of various types of valves may be employed to open when bore pressure increases beyond the pressure in the expansion chamber and close when the chamber pressure nears or exceeds the bore pressure, effectively temporarily isolating the gases within each chamber.

[0012] The projectile within the bore acts as a barrier, effectively a moving door, that temporarily obstructs the propellant gases from blowing around the projectile and exiting the end of the suppressor ahead of the projectile. The gases push on the rear surface of the projectile that's obstructing the way out at front of the bore and since the gasses cannot blow by or around the projectile, the gases take the path of least resistance and enter the expansion chambers through the valves until the pressures of the bore and expansion chambers equalize.

[0013] The suppressor system utilizes a multiple-stage, pressure reduction sequence, wherein volumes of bore gases enter each expansion chamber, thereby reducing the bore pressure feeding the next chamber, thereby sequentially stepping down the pressure.

[0014] To further enhance noise and flash suppression, an optional attenuation material chamber / muffler chamber may be positioned downstream of the sequestered expansion chambers. This chamber may contain sound, and / or vibration, and / or heat, and / or flash / flame absorbing materials such as fiberglass, ceramic wool, steel wool, copper wool, or ablative cooling media, or any combination of similar materials. The attenuation material chamber is configured so that remaining propellant gases must pass through attenuation materials before exiting the system.

[0015] At the terminal end of the suppressor system, exit vent(s) allow the final decompressed gases to exit at a significantly reduced pressure and velocity. These exit vent(s) diffuse expelled gases and minimize muzzle flash visibility. The suppressor system achieves an unprecedented level of efficiency, providing a multi-fold reduction in final exit gas pressure compared to traditional suppressor designs. Through the integration of valves, pressure-sequestering expansion chamber, a controlled venting system, and an optional attenuation material chamber, the present invention offers superior sound and flash suppression, making it highly effective in air gun and firearm noise reduction.

[0016] These and other advantages of the present disclosure will become apparent from the following detailed description and accompanying drawings. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the subject matter as claimed.

[0017] Other and further aspects and features of the disclosure will be evident from reading the following detailed description of the embodiments, which are intended to illustrate, not limit, the present disclosure.BRIEF DESCRIPTION OF DRAWINGS

[0018] The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example and simply illustrates certain selected embodiments of devices and methods that are consistent with the subject matter as claimed herein, wherein:

[0019] FIG. 1 illustrates a schematic diagram of a generic traditionally baffled, all internally communicating suppressor, allowing comparison of this traditionally baffled suppressor design with the present pressure-sequestering chamber design, demonstrating the mathematical relationship between bore pressure and suppressor volume;

[0020] FIGS. 2A through 2D illustrate a representation of the pressure reduction sequence, showing how each expansion chamber sequentially isolates and decompresses the propellant gases, in accordance with an embodiment of the present disclosure, in this example showing the use and action of reed type one way valves. FIG. 2D illustrates each vent of the vent assembly comprising at least one flow-restricting orifice sized to gradually release sequestered gases at a controlled rate, chamber to chamber, and finally through the attenuating material chamber, in accordance with an embodiment of the present disclosure;

[0021] FIG. 3 illustrates a diagram depicting the step-wise pressure reduction as high-pressure gases move through multiple pressure-sequestering chambers, each reducing bore pressure progressively, in accordance with an embodiment of the present disclosure, this diagram showing use of flapper type one way valves. FIG. 3 also illustrates the muffler section / attenuating material chamber where attenuating material may be added, through which all decompressing gases must pass;

[0022] FIGS. 4A and 4B illustrate a detailed diagram of a one-way flapper valve mechanism used within the suppressor system, in accordance with an embodiment of the present disclosure;

[0023] One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.DETAILED DESCRIPTION

[0024] A few inventive aspects of the disclosed embodiments are explained in detail below with reference to the various figures. Embodiments are described to illustrate the disclosed subject matter, not to limit its scope, which is defined by the claims. Those of ordinary skill in the art will recognize a number of equivalent variations of the various features provided in the description that follows.Non-Limiting Definitions

[0025] Definitions of one or more terms that will be used in this disclosure are described below without limitations. It is understood that the definitions are provided just for the sake of clarity and are intended to include more examples than just provided below.

[0026] Attenuation Material Chamber—A section of the suppressor containing sound, and / or vibration, and / or heat, and / or flash / flame absorbing materials to further dampen noise, flash, and thermal emissions before gas exits the system.

[0027] Bore—The interior passage of the firearm, air gun, suppressor, or muzzle device through which the projectile travels when fired.

[0028] Bore Pressure—The high-pressure gas generated upon firing, which propels the projectile through the bore.

[0029] Exit Pressure—The final gas pressure at the suppressor's vented exit point.

[0030] Flow-Restricting Orifice—A calibrated opening within the vent assembly that gradually releases sequestered gases at a controlled rate.

[0031] Gas Face—The undesirable effect of combustion gases and debris traveling back into the firearm's action towards the shooter rather than out of the barrel's muzzle.

[0032] Modular Suppressor Design—A suppressor configuration allowing customization of expansion chambers, attenuation materials, and venting assemblies to optimize performance for different firearms and calibers.

[0033] Multi-Stage Pressure Reduction—The cumulative effect of multiple pressure-sequestering chambers and valves working in series to reduce bore pressure in a step-wise manner before final gas release.

[0034] Pressure-Sequestering Expansion Chamber—A chamber in fluid communication with the bore that receives and temporarily isolates propellant gases.

[0035] Projectile-Induced Gas Redirection—The process by which bore pressure deflects off the rear of the projectile, directing gases into pressure-sequestering chambers through valves, ensuring controlled decompression.

[0036] Valve—A pressure-actuated valve positioned between the barrel bore and an expansion chamber. The valve permits unidirectional gas flow into the expansion chamber while preventing back flow. Examples include flapper valves, reed valves, hinged door valves, etc., all of which open under bore pressure and close when chamber pressure nears or exceeds bore pressure.

[0037] These definitions are provided for clarity and to ensure consistency in interpreting the scope of the invention. Additional terms used in this disclosure should be understood in their customary and ordinary meaning as recognized in the relevant technical field.Overview

[0038] The present disclosure relates to an improved suppressor system for air guns and firearms that a) significantly reduces sound signature and muzzle flash in the forward direction out of the end of the device and / or b) reduces back pressure in the backward direction, commonly referred to as “gas face.” Unlike conventional suppressors that rely on baffles and open expansion chambers, the disclosed system employs a novel pressure-sequestering mechanism that progressively reduces bore pressure through use of multiple isolated expansion chambers and valves. This staged decompression approach minimizes the sudden release of high-pressure gases, effectively reducing pressure, noise, and flash.

[0039] In operation, the suppressor system utilizes a sequential gas redirection process, wherein high-pressure propellant gases are diverted into expansion chambers through strategically placed valves. These valves open upon bore pressure buildup and close when the chamber pressure nears or exceeds the bore pressure, ensuring that gases remain sequestered at each stage before further decompression.

[0040] A vent assembly regulates the gradual release of sequestered gases through flow-restricting orifices. Unlike conventional suppressors, which have unrestricted decompression, the present system very significantly extends the decompression duration, reducing peak sound pressure levels and preventing uncontrolled abrupt muzzle blasts.

[0041] By integrating pressure-sequestering chambers, controlled decompression, heat-absorbing materials, and controlled venting, the present suppressor system achieves an unprecedented reduction in unwanted firearm noise, flash and gas pressure output. The disclosed technology represents a substantial advancement over conventional suppressor designs, offering enhanced performance, adaptability, and effectiveness across various air gun and firearm applications.Exemplary Implementations and Embodiments

[0042] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.

[0043] As used in the description herein and throughout the claims that follow, the meaning of “a,”“an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.

[0044] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the “invention” may in some cases refer to certain specific embodiments only. In other cases, it will be recognized that references to the “invention” will refer to subject matter recited in one or more, but not necessarily all, of the claims.

[0045] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and / or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.

[0046] Various embodiments are further described herein with reference to the accompanying figures. It should be noted that the description and figures relate to exemplary embodiments and should not be construed as a limitation to the subject matter of the present disclosure. It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the subject matter of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the subject matter of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof. Yet further, for the sake of brevity, operation or working principles pertaining to the technical material that is known in the technical field of the present disclosure have not been described in detail so as not to unnecessarily obscure the present disclosure.

[0047] FIG. 1 illustrates a schematic representation of the pressure dynamics in a traditional baffled, all interior communicating suppressor (1000). This diagram provides a mathematical analysis of how the traditional baffled suppressors manage bore pressure by simply allowing gases to expand into an all communicating internal volume for pressure reduction.

[0048] In the depicted traditional baffled suppressor, the traditional baffled suppressor features an interior volume with dimensions of 1.5″ diameter×8.8″ length, resulting in a total suppressor volume 19.8 times greater than the volume of the barrel bore. The pressure relationship is determined by the suppressor-to-bore volume ratio, where the exit pressure is calculated as follows:Exit⁢ Pressure=22,000⁢ psi19.8=1,111⁢ psi

[0049] This calculation demonstrates how traditional, all communicating interior baffled or flow through suppressors can only rely on expanding high-pressure propellant gases expanding into a larger internal volume to achieve pressure reduction before gas exits. The final exit pressure of 1,111 pounds per square inch (psi) reflects the pressure at which gases leave the suppressor after expansion.

[0050] FIGS. 2A-2D illustrate a suppressor system 2000 in accordance with an embodiment of the present disclosure. In FIGS. 2A-2D, the step-wise decompression process of the suppression system 2000 is shown, in which high-pressure bore gases are progressively redirected from the bore, through any type of one-way valves, reed type one way valves are illustrated in this example, into multiple pressure-sequestering expansion chambers (1, 2, etc.), reducing pressure incrementally before final gas release. This sequential pressure reduction mechanism prevents sudden decompression, thereby minimizing noise and muzzle flash. FIG. 2D illustrates a detailed diagram of a vent assembly (602-1, 602-2, . . . , 602-N, collectively referred to as 602) associated with each expansion chamber while the projectile (502) is in motion, in accordance with an embodiment of the present disclosure. The vent assembly (602) in each expansion chamber includes at least one flow-restricting orifice, which gradually releases sequestered gases at a controlled rate, thereby facilitating a flow rate controlled pressure reduction sequence.

[0051] FIG. 3 shows that in the initial stage, 1st stage, upon firing, the bore pressure behind a projectile is 22,000 psi. The gases attempt to escape, but they are diverted into the first pressure-sequestering expansion chamber (1) through a one-way flapper type valve in this illustration (102-1, 102-2, . . . , 102-N, collectively referred to as 102). Due to the increased chamber volume, which is 1.8× the bore volume, the pressure undergoes its first reduction, dropping by a factor of 1.8× to 12,222 psi.

[0052] As the projectile continues to move forward along the bore, the now-lower-bore pressure of 12,222 psi gases in the bore flow through another one-way valve (102-2) into the second expansion chamber (2) in 2nd stage. Here, the pressure drops again by 1.8×, reducing from 12, 222 psi to 6, 790 psi. This process repeats across multiple expansion chambers (3, 4, 5, 6, 7, 8, 9), following the same 1.8× pressure reduction ratio per chamber:

[0053] Third chamber (3): 6,790 psi-3,772 psi (3rd Stage)

[0054] Fourth chamber (4): 3,772 psi-2,095 psi (4th Stage)

[0055] Fifth chamber (5): 2,095 psi-1,164 psi (5th Stage)

[0056] Sixth chamber (6): 1,164 psi-646 psi (6th Stage)

[0057] Seventh chamber (7): 646 psi-359 psi (7th Stage)

[0058] Eighth chamber (8): 359 psi-200 psi (8th Stage)

[0059] Ninth chamber (9): 200 psi-111 psi (9th Stage)

[0060] At the final tenth expansion chamber (10), which has a volume 3.6 times greater than the bore volume, the remaining 111 psi of gas pressure undergoes a final 3.6× reduction, lowering the exit pressure to 31 psi. The gases are then released through a vent assembly.

[0061] This decompression sequence achieves an approximately 3,600% improvement in exit pressure reduction (31 psi vs 1,111 psi) when compared to traditional, internally all communicating baffled suppressors with the same internal volume. By isolating gas flow at each chamber and reducing pressure incrementally, FIG. 2 demonstrates how this design prevents uncontrolled gas expansion, significantly reducing both sound signature and muzzle flash visibility.

[0062] FIG. 2D illustrates the vent assembly within the suppressor system (2000), showing how each vent (602) comprises at least one flow-restricting orifice (602-1, 602-2, . . . , 602-N, collectively referred to as 602) designed to gradually release sequestered gases at a controlled rate, ensuring that by the time the gases exit the suppressor, the exit pressure is significantly diminished, resulting in superior suppression performance. In accordance with an embodiment of the present disclosure, the suppressor system (2000) utilizes the projectile (502 as a dynamic pressure barrier within the bore (506), temporarily obstructing the exit of high-pressure propellant gases. This obstruction forces the gases to sequentially enter the expansion chambers through the valves, ensuring a controlled decompression process. This process works the same way in both an integral to barrel configuration of the present invention, and also if the present invention is configured as a removable muzzle device.

[0063] The pressure diagram in FIG. 3 visually demonstrates the controlled decompression sequence, where each pressure sequestering chamber contributes to a gradual and systematic reduction of bore pressure. Unlike conventional designs, which allow high-pressure gases to expand freely and communicate with the entire suppressor volume and unrestricted exit, this sequential sequestered chamber pressure drop strategy ensures that gas expansion occurs in a restricted and controlled manner.

[0064] As the gases expand within the chamber, the pressure inside gradually equalizes with or exceeds the bore pressure. At this point, the force exerted by the return spring restores the one way valves to their closed position, sealing the chamber and isolating the trapped gases. This sequential process repeats across multiple expansion chambers, with each chamber receiving bore pressure gases that have already undergone pressure reduction, thereby achieving a step-wise decompression effect.

[0065] As can be seen from FIG. 3, upon firing, the bore pressure of 22,000 psi is deflected off the rear of the projectile (502) as it moves forward. When the projectile (502) passes the one way valves to the first expansion chamber (1), the high-pressure gases flow through the associated one way valve(s) (102-1), where the pressure reduces to 12,222 psi. At this stage, when the one way valves close, the pressure in the first expansion chamber (1) is fully sequestered, meaning that its contained gases no longer communicate with a barrel bore (506).

[0066] As the gases pass through the suppressor system (2000), the one-way valves (102) direct them into a multi-stage pressure reduction sequence. Each expansion chamber is equipped with flow restricting orifice(s) (602) that facilitate step-wise decompression.

[0067] FIGS. 4A and 4B illustrate a detailed view of a one-way valve (102) implemented as a one-way flapper valve integrated within the suppressor system (2000) to regulate the controlled flow of high-pressure propellant gases into pressure-sequestering expansion chambers while preventing backflow. The one-way valve consists of flappers (102a) that are connected to a pivot rod (102b) through a legged coil spring (102c). Upon firing, the bore pressure forces the flappers (102a) to rotate about the pivot rod (102b), overcoming the tension of the legged coil spring (102c) and allowing the gases to pass into the first expansion chamber. These flapper valves may be embodied in curved or flat shapes.

[0068] To further enhance suppression efficiency, the system (2000) incorporates an attenuation material / muffler chamber (604) positioned downstream of the expansion chambers. This chamber (604) may contain materials such as fiberglass, ceramic wool, steel wool, copper wool, or ablative cooling media, or similar, which absorb sound, and / or vibration, and / or heat, and / or flash / flame, thereby reducing the overall noise and / or flash signature of the firearm discharge. The attenuation material chamber (604) is designed so that all remaining propellant gases pass through attenuation materials before exiting the suppressor.

[0069] The suppressor system (2000) extends the decompression duration, significantly lowering peak decibel output and preventing sudden muzzle blast. At the terminal end of the suppressor system (2000), an exit vent(s) having one or more holes (606) is configured to allow the final decompressed gases to escape. FIG. 3 illustrates how the combination of staged decompression, flow-restricting orifices, and attenuation materials work together to provide an advanced and efficient suppression system.

[0070] The present suppressor system (2000) introduces several key advancements over traditional suppressor designs:

[0071] Sequestered Pressure Management—Unlike conventional suppressors that allow gases to expand freely and communicate within a common internal volume and unrestricted communication with the exit, this system (2000) separates and isolates pressure in the distinct expansion chambers (1, 2, 3, . . . ). This eliminates the unwanted high back pressure causing backflow of high-pressure gases, a common problem known as “gas face” in traditional designs.

[0072] Extended Decompression Duration—Traditional suppressors typically release gases in 15 milliseconds, whereas the present invention extends the decompression process very significantly. This extended release spreads energy dissipation over a longer period, leading to a significantly lower peak sound pressure level (dB reduction) of the decompression phase.

[0073] Controlled Decompression—Vents (602) restrict and reduce gas flow rate during decompression, thereby preventing rapid gas release that contributes to loud noise and flash in conventional suppressors.

[0074] Modular and Adjustable Design—This invention allows for elected numbers of user-configurable expansion chambers (1, 2, 3, . . . ), and these chambers can have different dimensions and volumes, and interchangeable attenuation materials may be selected to optimize performance for different air guns, firearms and calibers.

[0075] By integrating these advancements, the system (2000) proposed herein achieves an unprecedented level of firearm noise and flash suppression, making it a revolutionary breakthrough in suppressor technology. The ability to sequester, control, cool, and gradually release propellant gases in a staged, multi-step process results in significantly lower sound emissions and reduced flash signature.

[0076] The above description does not provide specific details of the manufacture or design of the various components. Those skilled in the art are able to choose suitable manufacturing and design details.

[0077] Further, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting to the disclosure. It would be appreciated if several of the above-disclosed and other features and functions, or alternatives thereof, could be combined into other devices or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without departing from the scope of the present disclosure as encompassed by the following claims.

[0078] The claims, as originally presented and as they may be amended, encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein, including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants / patentees and others.

[0079] It will be appreciated that variants of the above-disclosed and other features and functions, or alternatives thereof, may be combined into many other different devices or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may be subsequently made by those skilled in the art which are also intended to be encompassed by the following claims.

Examples

Embodiment Construction

[0024]A few inventive aspects of the disclosed embodiments are explained in detail below with reference to the various figures. Embodiments are described to illustrate the disclosed subject matter, not to limit its scope, which is defined by the claims. Those of ordinary skill in the art will recognize a number of equivalent variations of the various features provided in the description that follows.

Non-Limiting Definitions

[0025]Definitions of one or more terms that will be used in this disclosure are described below without limitations. It is understood that the definitions are provided just for the sake of clarity and are intended to include more examples than just provided below.[0026]Attenuation Material Chamber—A section of the suppressor containing sound, and / or vibration, and / or heat, and / or flash / flame absorbing materials to further dampen noise, flash, and thermal emissions before gas exits the system.[0027]Bore—The interior passage of the firearm, air gun, suppressor, or m...

RELATED APPLICATION

[0001] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 752,213 “Musflatus”, filed Jan. 31, 2025. This Provisional Patent application is incorporated herein by reference.TECHNICAL FIELD

[0002] The present disclosure generally relates to the field of silencers, sound suppressors, and flash suppressors for air guns and firearms. More specifically, the present disclosure introduces a novel method for achieving unprecedented levels of sound and pressure attenuation by sequentially redirecting propellant gases through valves into a plurality of pressure-sequestering expansion chambers.BACKGROUND

[0003] The following description includes information that may be useful in understanding the present disclosure. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed subject matter, or that any publication specifically or implicitly referenced is prior art.

[0004] The motivation of the inventor of the present invention is to help prevent hearing damage and tinnitus for people who are exposed to loud gun shots. Air gun and firearm suppressors have been developed to reduce the audible and visible signatures of a gunshot by controlling the release of high-pressure propellant gases. Conventional suppressors typically employ a series of internal baffles and communicating expansion chambers to slow down and redirect gas flow, thereby reducing sound intensity and muzzle flash.

[0005] Various approaches have been explored to improve suppressor performance, including modifications to baffle geometries, increased communicating chamber volumes, and the incorporation of sound-absorbing materials. However, these methods have not fully eliminated the challenges associated with high-pressure gas release and rapid decompression.

[0006] One persistent issue with existing suppressor designs, because of the all internally communicating space, is the incomplete containment and uncontrolled release of propellant gases. High-pressure gases accelerate suddenly upon projectile exit, generating a loud blast. While traditional suppressors attempt to mitigate these effects, their effectiveness remains limited by the rapid uncontrolled decompression of gases which is caused by continuous communication of internal spaces.

[0007] While suppressors have the desirable effect of reducing the sound pressure of the report by slowing the release of gasses out of the front of the gun, there is an unwanted effect of this slowing. During the decompression stage, the pressure captured by the suppressor is released into the bore over a longer amount of time both forward (desirable) and backward (undesirable). In the firing cycle of a semi automatic weapon, when the action opens to eject the spent case and reload another round, the ejection port of the action becomes a low resistance path for the pressurized gas from the suppressor to escape. The expanding gases and still burning gun powder particles sent backward are experienced by the shooter as excess gas pressure in the shooter's face, and this blow back is referred to as gas face. It can also increase parts wear and can cause cycling issues. Generally, quieter suppressors cause more back pressure, resulting in more gas face.

[0008] Accordingly, there is a need for an improved suppressor design that more effectively manages propellant gas pressure, reduces sound signature, and minimizes muzzle flash beyond the capabilities of existing technologies.SUMMARY

[0009] This summary is provided to introduce concepts related to a system for reducing the flash and sound signature of an air gun or firearm. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

[0010] The present disclosure relates to a suppressor system designed to reduce the flash and sound signature of an air gun or firearm, and gas face, when used with a semi-automatic firearm, by effectively managing high-pressure propellant gases. In the case of an integral to barrel configuration, the system includes a barrel bore, which is usually rifled, in which the projectile is touching and guided by the rifling of the barrel. In the case of a removable muzzle device configuration, the projectile travels within a central tube / bore, in free flight, not touching the inner walls of the central tube, while a tight tolerance gap between the projectile and the inner walls of the central tube minimizes “blow by” of the expanding gases generated upon firing from leaking around and ahead of the projectile. Two or more expansion chambers are in fluid communication with the bore, each chamber configured to sequentially receive and temporarily sequester propellant gases. Positioned along the bore, one or more valves selectively direct gases into the expansion chambers, ensuring that the following chamber receives only the stepped-down bore pressure reduced by the preceding chamber.

[0011] The suppressor system employs one or more vents associated with expansion chamber(s) which are flow-restricting orifices designed to gradually release sequestered gases at a controlled, reduced rate. These flow restricting orifices may be located in various places, such as between the walls of expansion chambers, or through a path that leads to the exterior of the device, or even within a valve. In the latter configuration, the vent makes the valve into a two-way valve. Initially during the expansion chamber pressurization phase, gases flow through the valve from the bore into the expansion chamber with high flow volume and low restriction. During the expansion chamber decompression phase, the exit decompression flow is at a much slower rate, when it goes in the opposite direction from the expansion chamber back into the bore or alternative exit(s) through the flow restricting orifice(s) located within the valve(s). Therefore the decompression of the sequestered pressure chamber takes significantly longer than filling. This significantly longer duration of time of controlled decompression significantly lowers the exit pressure and thus decreases sound pressure of the decompression of the suppressor. Any number of various types of valves may be employed to open when bore pressure increases beyond the pressure in the expansion chamber and close when the chamber pressure nears or exceeds the bore pressure, effectively temporarily isolating the gases within each chamber.

[0012] The projectile within the bore acts as a barrier, effectively a moving door, that temporarily obstructs the propellant gases from blowing around the projectile and exiting the end of the suppressor ahead of the projectile. The gases push on the rear surface of the projectile that's obstructing the way out at front of the bore and since the gasses cannot blow by or around the projectile, the gases take the path of least resistance and enter the expansion chambers through the valves until the pressures of the bore and expansion chambers equalize.

[0013] The suppressor system utilizes a multiple-stage, pressure reduction sequence, wherein volumes of bore gases enter each expansion chamber, thereby reducing the bore pressure feeding the next chamber, thereby sequentially stepping down the pressure.

[0014] To further enhance noise and flash suppression, an optional attenuation material chamber / muffler chamber may be positioned downstream of the sequestered expansion chambers. This chamber may contain sound, and / or vibration, and / or heat, and / or flash / flame absorbing materials such as fiberglass, ceramic wool, steel wool, copper wool, or ablative cooling media, or any combination of similar materials. The attenuation material chamber is configured so that remaining propellant gases must pass through attenuation materials before exiting the system.

[0015] At the terminal end of the suppressor system, exit vent(s) allow the final decompressed gases to exit at a significantly reduced pressure and velocity. These exit vent(s) diffuse expelled gases and minimize muzzle flash visibility. The suppressor system achieves an unprecedented level of efficiency, providing a multi-fold reduction in final exit gas pressure compared to traditional suppressor designs. Through the integration of valves, pressure-sequestering expansion chamber, a controlled venting system, and an optional attenuation material chamber, the present invention offers superior sound and flash suppression, making it highly effective in air gun and firearm noise reduction.

[0016] These and other advantages of the present disclosure will become apparent from the following detailed description and accompanying drawings. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the subject matter as claimed.

[0017] Other and further aspects and features of the disclosure will be evident from reading the following detailed description of the embodiments, which are intended to illustrate, not limit, the present disclosure.BRIEF DESCRIPTION OF DRAWINGS

[0018] The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example and simply illustrates certain selected embodiments of devices and methods that are consistent with the subject matter as claimed herein, wherein:

[0019] FIG. 1 illustrates a schematic diagram of a generic traditionally baffled, all internally communicating suppressor, allowing comparison of this traditionally baffled suppressor design with the present pressure-sequestering chamber design, demonstrating the mathematical relationship between bore pressure and suppressor volume;

[0020] FIGS. 2A through 2D illustrate a representation of the pressure reduction sequence, showing how each expansion chamber sequentially isolates and decompresses the propellant gases, in accordance with an embodiment of the present disclosure, in this example showing the use and action of reed type one way valves. FIG. 2D illustrates each vent of the vent assembly comprising at least one flow-restricting orifice sized to gradually release sequestered gases at a controlled rate, chamber to chamber, and finally through the attenuating material chamber, in accordance with an embodiment of the present disclosure;

[0021] FIG. 3 illustrates a diagram depicting the step-wise pressure reduction as high-pressure gases move through multiple pressure-sequestering chambers, each reducing bore pressure progressively, in accordance with an embodiment of the present disclosure, this diagram showing use of flapper type one way valves. FIG. 3 also illustrates the muffler section / attenuating material chamber where attenuating material may be added, through which all decompressing gases must pass;

[0022] FIGS. 4A and 4B illustrate a detailed diagram of a one-way flapper valve mechanism used within the suppressor system, in accordance with an embodiment of the present disclosure;

[0023] One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.DETAILED DESCRIPTION

[0024] A few inventive aspects of the disclosed embodiments are explained in detail below with reference to the various figures. Embodiments are described to illustrate the disclosed subject matter, not to limit its scope, which is defined by the claims. Those of ordinary skill in the art will recognize a number of equivalent variations of the various features provided in the description that follows.Non-Limiting Definitions

[0025] Definitions of one or more terms that will be used in this disclosure are described below without limitations. It is understood that the definitions are provided just for the sake of clarity and are intended to include more examples than just provided below.

[0026] Attenuation Material Chamber—A section of the suppressor containing sound, and / or vibration, and / or heat, and / or flash / flame absorbing materials to further dampen noise, flash, and thermal emissions before gas exits the system.

[0027] Bore—The interior passage of the firearm, air gun, suppressor, or muzzle device through which the projectile travels when fired.

[0028] Bore Pressure—The high-pressure gas generated upon firing, which propels the projectile through the bore.

[0029] Exit Pressure—The final gas pressure at the suppressor's vented exit point.

[0030] Flow-Restricting Orifice—A calibrated opening within the vent assembly that gradually releases sequestered gases at a controlled rate.

[0031] Gas Face—The undesirable effect of combustion gases and debris traveling back into the firearm's action towards the shooter rather than out of the barrel's muzzle.

[0032] Modular Suppressor Design—A suppressor configuration allowing customization of expansion chambers, attenuation materials, and venting assemblies to optimize performance for different firearms and calibers.

[0033] Multi-Stage Pressure Reduction—The cumulative effect of multiple pressure-sequestering chambers and valves working in series to reduce bore pressure in a step-wise manner before final gas release.

[0034] Pressure-Sequestering Expansion Chamber—A chamber in fluid communication with the bore that receives and temporarily isolates propellant gases.

[0035] Projectile-Induced Gas Redirection—The process by which bore pressure deflects off the rear of the projectile, directing gases into pressure-sequestering chambers through valves, ensuring controlled decompression.

[0036] Valve—A pressure-actuated valve positioned between the barrel bore and an expansion chamber. The valve permits unidirectional gas flow into the expansion chamber while preventing back flow. Examples include flapper valves, reed valves, hinged door valves, etc., all of which open under bore pressure and close when chamber pressure nears or exceeds bore pressure.

[0037] These definitions are provided for clarity and to ensure consistency in interpreting the scope of the invention. Additional terms used in this disclosure should be understood in their customary and ordinary meaning as recognized in the relevant technical field.Overview

[0038] The present disclosure relates to an improved suppressor system for air guns and firearms that a) significantly reduces sound signature and muzzle flash in the forward direction out of the end of the device and / or b) reduces back pressure in the backward direction, commonly referred to as “gas face.” Unlike conventional suppressors that rely on baffles and open expansion chambers, the disclosed system employs a novel pressure-sequestering mechanism that progressively reduces bore pressure through use of multiple isolated expansion chambers and valves. This staged decompression approach minimizes the sudden release of high-pressure gases, effectively reducing pressure, noise, and flash.

[0039] In operation, the suppressor system utilizes a sequential gas redirection process, wherein high-pressure propellant gases are diverted into expansion chambers through strategically placed valves. These valves open upon bore pressure buildup and close when the chamber pressure nears or exceeds the bore pressure, ensuring that gases remain sequestered at each stage before further decompression.

[0040] A vent assembly regulates the gradual release of sequestered gases through flow-restricting orifices. Unlike conventional suppressors, which have unrestricted decompression, the present system very significantly extends the decompression duration, reducing peak sound pressure levels and preventing uncontrolled abrupt muzzle blasts.

[0041] By integrating pressure-sequestering chambers, controlled decompression, heat-absorbing materials, and controlled venting, the present suppressor system achieves an unprecedented reduction in unwanted firearm noise, flash and gas pressure output. The disclosed technology represents a substantial advancement over conventional suppressor designs, offering enhanced performance, adaptability, and effectiveness across various air gun and firearm applications.Exemplary Implementations and Embodiments

[0042] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.

[0043] As used in the description herein and throughout the claims that follow, the meaning of “a,”“an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.

[0044] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the “invention” may in some cases refer to certain specific embodiments only. In other cases, it will be recognized that references to the “invention” will refer to subject matter recited in one or more, but not necessarily all, of the claims.

[0045] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and / or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.

[0046] Various embodiments are further described herein with reference to the accompanying figures. It should be noted that the description and figures relate to exemplary embodiments and should not be construed as a limitation to the subject matter of the present disclosure. It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the subject matter of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the subject matter of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof. Yet further, for the sake of brevity, operation or working principles pertaining to the technical material that is known in the technical field of the present disclosure have not been described in detail so as not to unnecessarily obscure the present disclosure.

[0047] FIG. 1 illustrates a schematic representation of the pressure dynamics in a traditional baffled, all interior communicating suppressor (1000). This diagram provides a mathematical analysis of how the traditional baffled suppressors manage bore pressure by simply allowing gases to expand into an all communicating internal volume for pressure reduction.

[0048] In the depicted traditional baffled suppressor, the traditional baffled suppressor features an interior volume with dimensions of 1.5″ diameter×8.8″ length, resulting in a total suppressor volume 19.8 times greater than the volume of the barrel bore. The pressure relationship is determined by the suppressor-to-bore volume ratio, where the exit pressure is calculated as follows:Exit⁢ Pressure=22,000⁢ psi19.8=1,111⁢ psi

[0049] This calculation demonstrates how traditional, all communicating interior baffled or flow through suppressors can only rely on expanding high-pressure propellant gases expanding into a larger internal volume to achieve pressure reduction before gas exits. The final exit pressure of 1,111 pounds per square inch (psi) reflects the pressure at which gases leave the suppressor after expansion.

[0050] FIGS. 2A-2D illustrate a suppressor system 2000 in accordance with an embodiment of the present disclosure. In FIGS. 2A-2D, the step-wise decompression process of the suppression system 2000 is shown, in which high-pressure bore gases are progressively redirected from the bore, through any type of one-way valves, reed type one way valves are illustrated in this example, into multiple pressure-sequestering expansion chambers (1, 2, etc.), reducing pressure incrementally before final gas release. This sequential pressure reduction mechanism prevents sudden decompression, thereby minimizing noise and muzzle flash. FIG. 2D illustrates a detailed diagram of a vent assembly (602-1, 602-2, . . . , 602-N, collectively referred to as 602) associated with each expansion chamber while the projectile (502) is in motion, in accordance with an embodiment of the present disclosure. The vent assembly (602) in each expansion chamber includes at least one flow-restricting orifice, which gradually releases sequestered gases at a controlled rate, thereby facilitating a flow rate controlled pressure reduction sequence.

[0051] FIG. 3 shows that in the initial stage, 1st stage, upon firing, the bore pressure behind a projectile is 22,000 psi. The gases attempt to escape, but they are diverted into the first pressure-sequestering expansion chamber (1) through a one-way flapper type valve in this illustration (102-1, 102-2, . . . , 102-N, collectively referred to as 102). Due to the increased chamber volume, which is 1.8× the bore volume, the pressure undergoes its first reduction, dropping by a factor of 1.8× to 12,222 psi.

[0052] As the projectile continues to move forward along the bore, the now-lower-bore pressure of 12,222 psi gases in the bore flow through another one-way valve (102-2) into the second expansion chamber (2) in 2nd stage. Here, the pressure drops again by 1.8×, reducing from 12, 222 psi to 6, 790 psi. This process repeats across multiple expansion chambers (3, 4, 5, 6, 7, 8, 9), following the same 1.8× pressure reduction ratio per chamber:

[0053] Third chamber (3): 6,790 psi-3,772 psi (3rd Stage)

[0054] Fourth chamber (4): 3,772 psi-2,095 psi (4th Stage)

[0055] Fifth chamber (5): 2,095 psi-1,164 psi (5th Stage)

[0056] Sixth chamber (6): 1,164 psi-646 psi (6th Stage)

[0057] Seventh chamber (7): 646 psi-359 psi (7th Stage)

[0058] Eighth chamber (8): 359 psi-200 psi (8th Stage)

[0059] Ninth chamber (9): 200 psi-111 psi (9th Stage)

[0060] At the final tenth expansion chamber (10), which has a volume 3.6 times greater than the bore volume, the remaining 111 psi of gas pressure undergoes a final 3.6× reduction, lowering the exit pressure to 31 psi. The gases are then released through a vent assembly.

[0061] This decompression sequence achieves an approximately 3,600% improvement in exit pressure reduction (31 psi vs 1,111 psi) when compared to traditional, internally all communicating baffled suppressors with the same internal volume. By isolating gas flow at each chamber and reducing pressure incrementally, FIG. 2 demonstrates how this design prevents uncontrolled gas expansion, significantly reducing both sound signature and muzzle flash visibility.

[0062] FIG. 2D illustrates the vent assembly within the suppressor system (2000), showing how each vent (602) comprises at least one flow-restricting orifice (602-1, 602-2, . . . , 602-N, collectively referred to as 602) designed to gradually release sequestered gases at a controlled rate, ensuring that by the time the gases exit the suppressor, the exit pressure is significantly diminished, resulting in superior suppression performance. In accordance with an embodiment of the present disclosure, the suppressor system (2000) utilizes the projectile (502 as a dynamic pressure barrier within the bore (506), temporarily obstructing the exit of high-pressure propellant gases. This obstruction forces the gases to sequentially enter the expansion chambers through the valves, ensuring a controlled decompression process. This process works the same way in both an integral to barrel configuration of the present invention, and also if the present invention is configured as a removable muzzle device.

[0063] The pressure diagram in FIG. 3 visually demonstrates the controlled decompression sequence, where each pressure sequestering chamber contributes to a gradual and systematic reduction of bore pressure. Unlike conventional designs, which allow high-pressure gases to expand freely and communicate with the entire suppressor volume and unrestricted exit, this sequential sequestered chamber pressure drop strategy ensures that gas expansion occurs in a restricted and controlled manner.

[0064] As the gases expand within the chamber, the pressure inside gradually equalizes with or exceeds the bore pressure. At this point, the force exerted by the return spring restores the one way valves to their closed position, sealing the chamber and isolating the trapped gases. This sequential process repeats across multiple expansion chambers, with each chamber receiving bore pressure gases that have already undergone pressure reduction, thereby achieving a step-wise decompression effect.

[0065] As can be seen from FIG. 3, upon firing, the bore pressure of 22,000 psi is deflected off the rear of the projectile (502) as it moves forward. When the projectile (502) passes the one way valves to the first expansion chamber (1), the high-pressure gases flow through the associated one way valve(s) (102-1), where the pressure reduces to 12,222 psi. At this stage, when the one way valves close, the pressure in the first expansion chamber (1) is fully sequestered, meaning that its contained gases no longer communicate with a barrel bore (506).

[0066] As the gases pass through the suppressor system (2000), the one-way valves (102) direct them into a multi-stage pressure reduction sequence. Each expansion chamber is equipped with flow restricting orifice(s) (602) that facilitate step-wise decompression.

[0067] FIGS. 4A and 4B illustrate a detailed view of a one-way valve (102) implemented as a one-way flapper valve integrated within the suppressor system (2000) to regulate the controlled flow of high-pressure propellant gases into pressure-sequestering expansion chambers while preventing backflow. The one-way valve consists of flappers (102a) that are connected to a pivot rod (102b) through a legged coil spring (102c). Upon firing, the bore pressure forces the flappers (102a) to rotate about the pivot rod (102b), overcoming the tension of the legged coil spring (102c) and allowing the gases to pass into the first expansion chamber. These flapper valves may be embodied in curved or flat shapes.

[0068] To further enhance suppression efficiency, the system (2000) incorporates an attenuation material / muffler chamber (604) positioned downstream of the expansion chambers. This chamber (604) may contain materials such as fiberglass, ceramic wool, steel wool, copper wool, or ablative cooling media, or similar, which absorb sound, and / or vibration, and / or heat, and / or flash / flame, thereby reducing the overall noise and / or flash signature of the firearm discharge. The attenuation material chamber (604) is designed so that all remaining propellant gases pass through attenuation materials before exiting the suppressor.

[0069] The suppressor system (2000) extends the decompression duration, significantly lowering peak decibel output and preventing sudden muzzle blast. At the terminal end of the suppressor system (2000), an exit vent(s) having one or more holes (606) is configured to allow the final decompressed gases to escape. FIG. 3 illustrates how the combination of staged decompression, flow-restricting orifices, and attenuation materials work together to provide an advanced and efficient suppression system.

[0070] The present suppressor system (2000) introduces several key advancements over traditional suppressor designs:

[0071] Sequestered Pressure Management—Unlike conventional suppressors that allow gases to expand freely and communicate within a common internal volume and unrestricted communication with the exit, this system (2000) separates and isolates pressure in the distinct expansion chambers (1, 2, 3, . . . ). This eliminates the unwanted high back pressure causing backflow of high-pressure gases, a common problem known as “gas face” in traditional designs.

[0072] Extended Decompression Duration—Traditional suppressors typically release gases in 15 milliseconds, whereas the present invention extends the decompression process very significantly. This extended release spreads energy dissipation over a longer period, leading to a significantly lower peak sound pressure level (dB reduction) of the decompression phase.

[0073] Controlled Decompression—Vents (602) restrict and reduce gas flow rate during decompression, thereby preventing rapid gas release that contributes to loud noise and flash in conventional suppressors.

[0074] Modular and Adjustable Design—This invention allows for elected numbers of user-configurable expansion chambers (1, 2, 3, . . . ), and these chambers can have different dimensions and volumes, and interchangeable attenuation materials may be selected to optimize performance for different air guns, firearms and calibers.

[0075] By integrating these advancements, the system (2000) proposed herein achieves an unprecedented level of firearm noise and flash suppression, making it a revolutionary breakthrough in suppressor technology. The ability to sequester, control, cool, and gradually release propellant gases in a staged, multi-step process results in significantly lower sound emissions and reduced flash signature.

[0076] The above description does not provide specific details of the manufacture or design of the various components. Those skilled in the art are able to choose suitable manufacturing and design details.

[0077] Further, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting to the disclosure. It would be appreciated if several of the above-disclosed and other features and functions, or alternatives thereof, could be combined into other devices or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without departing from the scope of the present disclosure as encompassed by the following claims.

[0078] The claims, as originally presented and as they may be amended, encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein, including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants / patentees and others.

[0079] It will be appreciated that variants of the above-disclosed and other features and functions, or alternatives thereof, may be combined into many other different devices or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may be subsequently made by those skilled in the art which are also intended to be encompassed by the following claims.

Examples

Embodiment Construction

[0024]A few inventive aspects of the disclosed embodiments are explained in detail below with reference to the various figures. Embodiments are described to illustrate the disclosed subject matter, not to limit its scope, which is defined by the claims. Those of ordinary skill in the art will recognize a number of equivalent variations of the various features provided in the description that follows.

Non-Limiting Definitions

[0025]Definitions of one or more terms that will be used in this disclosure are described below without limitations. It is understood that the definitions are provided just for the sake of clarity and are intended to include more examples than just provided below.[0026]Attenuation Material Chamber—A section of the suppressor containing sound, and / or vibration, and / or heat, and / or flash / flame absorbing materials to further dampen noise, flash, and thermal emissions before gas exits the system.[0027]Bore—The interior passage of the firearm, air gun, suppressor, or m...

Claims

1. A suppressor system for reducing exit pressure and flash and sound signature of an air gun or firearm, the system being removably attached to or integrally formed with a barrel of the air gun or firearm, the system comprising:a bore through which a projectile travels and that contains the high pressure propellant gases;a plurality of sequential expansion chambers each in direct, fluid communication with the bore, each of the plurality of expansion chambers configured to receive the propellant gases, thereby sequestering the propellant gasses away from the bore;a plurality of expansion chambers are arranged sequentially one after another, from the proximal end to the distal end of the suppressor, along the same axis of the device as the projectile path of the bore;one or more valves between the bore and each of the plurality of expansion chambers, each of the one or more valves configured for selectively directing the propellant gases from the bore into a corresponding one of the plurality of expansion chambers while preventing or restricting backflow of the propellant gases into the bore;a one or more vents associated with each of the plurality of expansion chambers; andthe sequential stepdown of the bore pressure achieved by the pressurized propellant gasses from the bore interacting with each expansion chamber, causing a portion of the bore pressure to move into the expansion chamber and remain sequestered within the expansion chamber, separated away from the bore, such that after the bore pressure has been reduced by interaction with the previous expansion chamber, the amount of bore pressure presented to the following expansion chamber is lower than that which was presented to the previous expansion chamber, therefore the bore pressure is sequentially decreased by its interaction with each subsequent expansion chamber, and with a plurality of sequestered, expansion chambers, this cumulative, stepwise pressure reduction occurs multiple times, lowering bore pressure exponentially, and resulting in reduction of the exit pressure to a fraction of the initial bore pressure.

2. The suppressor system of claim 1, wherein the one or more valves are one-way valves, each selectively directing the propellant gases from the bore into the corresponding one of the plurality of expansion chambers while preventing the backflow of the propellant gases into the bore.

3. The suppressor system of claim 1, wherein the one or more valves are two-way valves, each selectively directing the propellant gases from the bore into the corresponding one of the one or more expansion chambers during an expansion chamber pressurization phase, then, during a expansion chamber decompression phase, the propellant gases flow from the corresponding one of the one or more expansion chambers, through one or more flow restricting orifices, back into the bore, thereby restricting backflow of the propellant gases into the bore, such that the expansion chamber decompression phase is longer than the expansion chamber pressurization phase.

4. (canceled)5. (canceled)6. The suppressor system of claim 1, wherein the one or more vents associated with each of the plurality of expansion chambers comprises at least one flow-restricting mechanism, device or orifice sized or designed to gradually release the propellant gases sequestered gases in the plurality of expansion chambers at a controlled rate.

7. The suppressor system of claim 6, wherein the air gun or firearm comprises a semi-automatic weapon, and wherein the one or more vents associated with each of the plurality of expansion chambers releases the propellant gases sequestered in the plurality of expansion chambers in a direction or at a time in a firing cycle of the semi-automatic weapon in order to not contribute to gas face.

8. The suppressor system of claim 6, wherein the one or more vents associated with each of the plurality of expansion chambers is one of a plurality of interchangeable vents, each of the interchangeable vents having a different flow restricting mechanism or device, orifice size, or number of orifices.

9. The suppressor system of claim 1, wherein the projectile is configured to act as a dynamic pressure barrier as the projectile travels through the bore, temporarily obstructing exit of the propellant gases and forcing said propellant gases to enter the plurality of expansion chambers through the one or more valves.

10. The suppressor system of claim 1, further comprising an attenuation or muffler material chamber with attenuation material therein to attenuate or reduce sound, vibration, heat, flash / flame, the attenuation material comprising one or more of: fiberglass, ceramic wool, steel wool, copper wool, and ablative cooling media.

11. The suppressor system of claim 10, wherein the propellant gases pass through one or more chambers containing attenuation or muffler material before exiting the suppressor system.

12. The suppressor system of claim 1, wherein the plurality of expansion chambers are modular, such that a user can choose the number of expansion chambers to use, and such that the user can choose different sizes or lengths of expansion chambers.

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