1530results about "Weapon components" patented technology

An emergency vehicle traffic light preemption system for preemption of traffic lights at an intersection to allow safe passage of emergency vehicles. The system includes a real-time status monitor of an intersection which is relayed to a control module for transmission to emergency vehicles as well as to a central dispatch office. The system also provides for audio warnings at an intersection to protect pedestrians who may not be in a position to see visual warnings or for various reasons cannot hear the approach of emergency vehicles. A transponder mounted on an emergency vehicle provides autonomous control so the vehicle operator can attend to getting to an emergency and not be concerned with the operation of the system. Activation of a priority-code (i.e. Code-3) situation provides communications with each intersection being approached by an emergency vehicle and indicates whether the intersection is preempted or if there is any conflict with other approaching emergency vehicles. On-board diagnostics handle various information including heading, speed, and acceleration sent to a control module which is transmitted to an intersection and which also simultaneously receives information regarding the status of an intersection. Real-time communications and operations software allow central and remote monitoring, logging, and command of intersections and vehicles.

An M4 type automatic or semi-automatic firearm having an indirect gas operating system. A bolt assembly has a striking surface. The bolt assembly is enclosed within an M4 type receiver assembly. A barrel assembly having a bore is coupled to the receiver assembly. A gas block having a cylinder is fitted to the barrel assembly with the cylinder in communication with the bore. A piston and rod assembly has a piston and a striking rod, with the piston fitted to the cylinder. Gas discharged from a fired cartridge displaces the piston and causes the striking rod to strike the striking surface displacing the bolt assembly.

A sound suppressor for a firearm for reducing sound and flash levels upon the discharge of a firearm comprises a cylindrical housing, a proximal end cap with means for attachment to a firearm and to the cylindrical housing, a distal end cap with means for attachment to the housing, and a plurality of baffles positioned within the housing and between the proximal end and distal end caps of the suppressor. A separate cylindrical spacer element is positioned between the proximal end cap of the suppressor and the first baffle. This spacer provides axial positioning of the baffles within the cylindrical housing of the suppressor. The distal end cap of the suppressor is provided with a concentric circular hole or aperture for the projectile to pass through the end of the suppressor. In a number of preferred embodiments, the sound suppressor utilizes baffles that use two or more of the disclosed features that enhance reduction of sound and flash, these features being a rearward conical protrusion provided with multi-annular steps, a flange with an external diameter slightly less than the internal diameter of the cylindrical housing, a frontal turbulence generation structure, a frontal turbulence generation structure provided with at least one cut-out, a turbulence generation structure, and gas cross-flow enhancement cuts positioned on the proximal and distal sides of the baffles.

Aspects of the present invention relate to methods and systems for collecting an using eye heading and sight heading information in head worn computing.

A fixed-blade knife includes a unitary blade having an implement, a tang, and a pivot region between the implement and the tang. The unitary blade is disposed between a pair of parallel and spaced-apart side pieces that pivot to cover or expose the implement. In the pivoted position wherein the implement is exposed, the side pieces form part of the handle that is used to grasp the knife. A locking structure locks the side pieces in a selectable position, and a limit structure prevents overrotation of the side pieces.

A safety scalpel blade assembly comprising a scalpel blade, a guard which extends at least about the cutting edge of the blade, and releasable attachments device which releasably attach the blade to the guard as the assembly is being attached to the scalpel handle, thereby preventing the blade from cutting a person, but which releases the blade from the guard when the blade is attached to the blade carrier of the scalpel handle.

A utility knife using segmented, snap-off blades, or snap knife, incorporating an improved means for snapping off the dull segments. A two part handle is pivotally interconnected so that when closed, a standard handle is formed. When open, the two parts of the handle are aligned opposite each other. The blade, contained in one part can be advanced to enter a slot in the other part. With the segment line of the blade aligned in the gap between the two parts, the blade can be snapped by closing the handles. The snapped segment is preferably retained within the handle for later disposal.

The present invention provides a combination utility retractable saw and knife device that comprises a handle member having a predetermined configuration and a knife blade disposed within a cavity formed in the handle member when in a retracted position. The knife blade member has a predetermined configuration. It further includes a saw blade disposed within a radially opposed cavity of such handle member when in a retracted position. Such combination device further includes a means engageable with the saw blade for connecting it with the handle and a means engageable with the knife blade for connecting it with the handle. There is also a means engageable with the saw blade for at least one of slidably moving and pivotably rotating the saw blade to an operable position, the means being at least partially disposed within the handle and a means engageable with the knife blade for slidably moving the knife blade member to an operable position, such means also being at least partially disposed within the handle. There is further a means engageable with the saw blade and the handle for locking the saw blade in an operable position and in a retracted position, such means being at least partially disposed within the handle and a means engageable with the knife blade and the handle for locking the knife blade in an operable and a retracted position, such means being at least partially disposed within said handle member.

A folding tool includes a handle and an implement pivotally coupled to the handle according to one embodiment. The implement is adapted to travel between a closed position and an open position and has a tang with a contoured surface. A spring arm has a first end coupled to the handle and a second end adapted to interact with the implement. The spring arm exerts an opening force on the implement during at least a portion of the travel of the implement between the closed position and the open position and also locks the implement into the open position.

A utility knife include a handle, a neck pivotally mounted on the handle, and a blade mounted in the neck. The neck can be folded into the handle to transport the utility knife. The blade is slidably removably inserted into and out of the handle without requiring disassembly of the handle. The blade is secured to the neck of the knife by a pivotally mounted arm.

An adjustable safety utility knife includes an elongated ergonomically shaped handle formed of two elongate shell members each having a peripheral edge and an outer generally convex surface and an inner generally concave surface. The shell members are fastened at the peripheral edges along a vertical parting plane to form an elongated internal cavity. The handle defines a front end, a back end and an intermediate portion suitable for being gripped by a user and also defining top and bottom surfaces extending along opposite sides of the shell members along the peripheral edges. The handle has a slot-like aperture at the front end substantially aligned with the parting plane and dimensioned for passage of a flat cutting blade therethrough. A guide element within the elongated cavity guides the cutting blade between a first position for safely storing the blade fully inside the cavity and a second position for selectively extending the blade beyond the aperture to expose at least a portion thereof. A manually operated button is arranged on the top surface and coupled to the guide element for selectively moving the blade between the first and second positions. The guide element includes a carriage within the elongated internal cavity for supporting a flat cutting blade and guide elements on at least one of the inner generally concave surfaces for guiding the carriage and cutting blade carried thereby between the first and second positions. The carriage includes a locking element for normally locking a cutting blade mounted thereon to substantially fix the cutting blade against relative longitudinal movements between the cutting blade and carriage. The locking element includes an unlocking element the actuation of which releases the cutting blade to permit relative longitudinal movements between the cutting blade and the carriage. A blade release element on one of the shell members actuates the unlocking element when manual force is applied thereto, whereby application of a force on the release element releases the cutting blade and enables it to be withdrawn through the front end aperture.

A suppressor for a firearm includes a first gas expansion section of relatively large size sufficient to reduce the temperature and pressure of the gas expelled from a muzzle during discharge of the firearm to a level that avoids rapid degrading of structural members such as baffles in the suppressor that are downstream of the muzzle. The gas is channeled through multiple paths to distribute its energy more equally. Preferably, the suppressor is formed with a lightweight, thermally-conductive composite portion. The composite portion provides lightweight, bursting strength with good thermal conductivity and little contribution to vibrational instability of the muzzle to which it is attached. The composite portion may be of a carbon fiber, silicon, boron, or metallic base. In one embodiment, a first expansion chamber is in communication with the muzzle and with a second expansion chamber and in another embodiment, the first expansion chamber communicates with the muzzle and with the second expansion chamber The composite portions of the suppressor provide good bursting strength and heat conductivity with light weight. In some embodiments, a series of baffles creates turbulence in the gas, slowing its motion and distributing the energy more evenly over space.

A sound suppressor suppresses sound and flash by creating interacting paths of gas. While a first portion of the gas follows a first path through the suppressor, a second portion of the gas is diverted radially from the first path to a second path and then repeatedly made to cross the first path by a series of baffles with alternating radial passages so that the two portions of gas interfere and interact with each other, and therefore quickly give up much of their kinetic energy before they exit the suppressor. Preferably, the baffles defining the second path impart a swirl to the second portion of gas to cause the present suppressor to flush itself of carbon and metal particles. The interaction of the two portions also accelerates completion of combustion of the gas to thereby reduce flash.

A handle for a utility knife includes a housing made up of two or more portions. In one embodiment, a manually operable member for use in releasing the blade is retained to at least one portion of the housing and does not become separated from the housing when the housing is in an open state. In another embodiment, a catch for engaging the blade extends from a support member that is slidably movable within the housing. In another embodiment, the housing is formed of metal and a nose portion is formed of a metal that is more wear resistant than the rest of the housing, in order to improve the durability of the nose portion. In another embodiment, a bail screw is captured on a first housing portion and threadedly engageable with a second housing portion for (i) releasably securing the first and second housing portions in a fully closed state and, in turn, releasably securing a blade within the blade opening, and (ii) manually positioning at least one of the first and second housing portions in at least one intermediate state between the fully closed state and a fully opened state to, in turn, permit the blade to be manually moved through the blade opening.

Typically 20–40 films of a tough first metal, normally 0.1–1.0 mm thick films of titanium, nickel, vanadium, and/or steel (iron) and alloys thereof, interleaved with a like number of films of a second metal, normally 0.1–1.0 mm thick films of aluminum or alloys thereof, are pressed together in a stack at less than 6 MPa and normally at various pressures 2–4 MPa while being gradually heated in the presence of atmospheric gases to 600–800° C. over a period of, typically, 10+ hours until the second metal is completely compounded; forming thus a metallic-intermetallic laminate composite material having (i) tough first-metal layers separated by (ii) hard, Vickers microhardness of 400 kg/mm²+, intermetallic regions consisting of an intermetallic compound of the first and the second metals. The resulting composite material is inexpensive, lightweight with a density of typically 3 to 4.5 grams/cubic centimeter, and very hard and very tough to serve as, among other applications, lightweight armor. Upon projectile impact (i) the hard intermetallic, ceramic-like, layers are confined by the tough metal layers while (ii) cracking and fracturing is blunted and channeled in directions orthogonal to the axis of impact.

An adjustable safety utility knife includes an elongated ergonomically shaped handle formed of two elongate shell members each having a peripheral edge and an outer generally convex surface and an inner generally concave surface. The shell members are fastened at the peripheral edges along a vertical parting plane to form an elongated internal cavity. The handle defines a front end, a back end and an intermediate portion suitable for being gripped by a user and also defining top and bottom surfaces extending along opposite sides of the shell members along said peripheral edges. The handle has a slot-like aperture at the front end substantially aligned with the parting plane and dimensioned for passage of a flat cutting blade therethrough. A guide element within the elongated cavity guides the cutting blade between a first position for safely storing the blade fully inside said cavity and a second position for selectively extending the blade beyond the aperture to expose at least a portion thereof. A manually operated button arranged on the top surface is coupled to the guide element for selectively moving the blade between the first and second positions. The handle has a rear opening at the back end for providing access to the elongated internal cavity. A carrier frame has a blade cartridge receiving compartment and dimensioned to be removably receivable within the cavity through the rear opening between a retracted position in which the carrier frame is fully stored within the internal cavity of the handle end and an extended position in which the carrier frame is at least partially moved exteriorly of the back end to provide access of the cartridge receiving compartment. A blade cartridge for storing a plurality of flat cutting blades is receivable within the blade cartridge receiving compartment.

A collision avoidance system adapted for use with a rearward traveling host vehicle, and by an operator, in a preferred embodiment includes an object locator sub-system configured to determine at least one condition for a plurality of objects, wherein the objects include infrastructure, appurtenances, and remotely traveling equipped vehicles, and pedestrians, a intra-vehicle condition sensor, and a control unit configured to assess collision threats based on the object and host vehicle condition data, and alert the operator or autonomously cause a braking mechanism to be actuated, when a collision is determined.

The invention has as its object to determine a risk of collision on the ground between an aircraft and another object. The aircraft comprises at least one proximity detector and a communication system suitable for setting up a communication among several points, at least one of the points being able to be external to the aircraft. After having received at least one indication from the proximity detector relating to the presence of an object, a signal representing an acoustic alarm linked to the detection of the object is generated then transmitted to the warning system. A comparison advantageously is made between the indication received from the proximity detector and certain parameters of the aircraft, the signal representing an acoustic alarm linked to the detection of the object being generated in response to the result of this comparison.