35results about How to "Pressure is released" patented technology

An improved corneal contact lens for use in orthokeratology wherein the lens has an anterior surface, posterior surface and includes a tear zone which defines a tear reservoir located on the posterior surface of the lens. The improvement involves providing at least one fenestration surface located in the tear zone which defines an opening extending through the contact lens from the anterior surface to the posterior surface. The openings in the tear zone relieve fluid pressure which was found to cause certain symptoms, such as lens adhesion, tightening and general wearing discomfort. The fenestrations in the tear zone provide enhanced wearing comfort without adversely affecting the cornea-shaping properties of the lens.

A tissue tunneler including an expandable attachment mechanism for securing a catheter. In one variation, the tissue tunneler comprises an elongate tunneler with a protrusion extending from the proximal end of the tunneler. An expansion mechanism is provided on the protrusion for insertion into the catheter. An oversleeve slidably disposed over the elongated tunneler may be provided to engage the expansion mechanism and trap the catheter between the oversleeve and the expansion mechanism. In another variation, the expansion mechanism may comprise of an expandable O-ring configured to engage an inner surface within a catheter.

A brake system for an air braked trailer includes a first control line for transmitting air from a source, a second control line for transmitting air, a relay valve allowing air to flow therethrough, and a pneumatic control module (PCM) having structure for reducing pressure from an inlet port of the PCM to an outlet port of the PCM. The PCM is connected to the first control line and is solely connected to the relay valve by the second control line. The first and second control lines are capable of being decoupled from the PCM and being coupled to each other to remove the PCM from the system so that a technician can check the system. An exhaust valve is integrally connected with the PCM and is capable of exhausting air to atmosphere. When the system is used on trailer, the PCM is mounted away from the relay valve, and preferably forwardly of a forward axle of the trailer.

A method of producing a high pressure gas is disclosed and which includes providing a container; supplying the container with a liquid such as water; increasing the pressure of the liquid within the container; supplying a reactant composition such as a chemical hydride to the liquid under pressure in the container and which chemically reacts with the liquid to produce a resulting high pressure gas such as hydrogen at a pressure of greater than about 100 pounds per square inch of pressure; and drawing the resulting high pressure gas from the container.

It is an object of the invention to provide a power tool that effectively prevents leakage of lubricant while regulating the internal pressure of a housing space for a driving mechanism.The object can be achieved by a representative power tool that includes a too bit 119, a driving mechanism 113, 115, an enclosed housing space 107a which houses the driving mechanism and in which lubricant is sealed in, and a path 151 which regulates pressure of the housing space 107a. On the path, a filter chamber 154 having a predetermined capacity, an inner passage 155c that communicates the filter chamber 154 with the housing space 107a, and an outer passage 159c that communicates the filter chamber 154 with the outside are formed. A filter 157 is disposed in the filter chamber 154 and spaced apart from a peripheral edge of an opening of the outer passage 159c which is open to the filter chamber 154, so that a space 161 is created on the opening edge side of the filter chamber 154. A throttle member 163, 167 is disposed in the space 161 and throttles flow of air which flows out to the outer passage 159c through the filter 157.

A self latching trailer coupler includes a housing having a downwardly oriented ball receiver for receiving a head of a hitch ball and a latch member mounted in the housing which is moveable between open and closed positions. In the closed position, the latch member prevents the hitch ball from being withdrawn from the ball receiver. The latch member automatically moves into the closed position upon insertion of the head of the hitch ball into the ball receiver and retains the latch member in the closed position. A lock assembly is mounted in the housing and is selectively engageable to lock the latch member in the closed position.

A self latching trailer coupler includes a housing having a downwardly oriented ball receiver for receiving a head of a hitch ball and a latch member mounted in the housing which is moveable between open and closed positions. In the closed position, the latch member prevents the hitch ball from being withdrawn from the ball receiver. The latch member automatically moves into the closed position upon insertion of the head of the hitch ball into the ball receiver and retains the latch member in the closed position. A lock assembly is mounted in the housing and is selectively engageable to lock the latch member in the closed position.

It is an object of the invention to provide a power tool that effectively prevents leakage of lubricant while regulating the internal pressure of a housing space for a driving mechanism.The object can be achieved by a representative power tool that includes a too bit 119, a driving mechanism 113, 115, an enclosed housing space 107a which houses the driving mechanism and in which lubricant is sealed in, and a path 151 which regulates pressure of the housing space 107a. On the path, a filter chamber 154 having a predetermined capacity, an inner passage 155c that communicates the filter chamber 154 with the housing space 107a, and an outer passage 159c that communicates the filter chamber 154 with the outside are formed. A filter 157 is disposed in the filter chamber 154 and spaced apart from a peripheral edge of an opening of the outer passage 159c which is open to the filter chamber 154, so that a space 161 is created on the opening edge side of the filter chamber 154. A throttle member 163, 167 is disposed in the space 161 and throttles flow of air which flows out to the outer passage 159c through the filter 157.

The present invention relates to a process and an apparatus of ocean carbon capture and storage (Ocean CCS), which can be used for carrying out carbon capture and storage of flue gas discharged from marine facilities using fossil energy such as coastal power plants and marine ships, and direct air capture (DAC). The natural engineering method are adopted in the present invention, and natural seawater is used for washing and dissolving CO2 gas for carbon capture; and natural seawater carbonate neutralization and formed bicarbonate is used for ocean storage in water column; and low head and large water flow is used to save energy. The discharged water complies with environmental regulations. The present invention provides an affordable and green effective mean for using marine ecosystems of carbon sinks and reservoirs to respond to the climate change.

A dispenser for a fluid material includes a handle portion and a cartridge having the material to be dispensed. The cartridge is easily mounted to the handle portion or removed, whereby the handle portion may be used with a variety of cartridges, each of which may contain a selected material. The handle portion includes a plunger that is moved linearly by actuation of a trigger mechanism, which is engaged by a user's finger. The trigger mechanism is configured to release pressure applied to the plunger quickly upon release of pressure on the trigger and to allow the plunger to move away from the cartridge to ensure release of pressure in the material to be dispensed to prevent dripping.

A method of producing a high pressure gas is disclosed and which includes providing a container; supplying the container with a liquid; increasing the pressure of the liquid within the container; supplying a reactant composition to the liquid under pressure in the container and which chemically reacts with the liquid to produce a resulting high pressure gas; and drawing the resulting high pressure gas from the container.

A safety device is provided having a clamping system that uses pressure admission into a chamber of a clamp element dependent on the position of a weight to be carried relative to the clamping system. For this purpose a valve is provided in a medium supply line, which valve is to be opened or closed by means of a movable actuation element. Here, the actuation element should be movable in the same direction in which the weight moves, preferably in a vertical direction. As a result of the arrangement of such a valve, the device couples the vertical movement or position of the weight with an actuation of the valve, and thus to provide an additional control for the pressure admission into the chamber or the clamping force resulting therefrom. A preferred chamber has curved top and bottom walls that elongate with a pressure drop.

The invention relates to a pressure relief valve for a packaging container (3), comprising a base body (4) with a central through opening (9), a sealing surface (14) and a peripheral region (18), wherein the peripheral region (18) may be sealingly connected to an inner side (3a) of the packaging container (3) and the sealing surface (14) has an inwardly tapering form and a membrane (6), making contact with the sealing surface (14) to permit a seal wherein a fluid (5) is arranged between the sealing surface (14) and the membrane (6). The membrane (6) is flexible and a recess (30) is made in the base body (4) into which the central through opening (9) opens out, wherein in the opening region of the central through opening (9), an annular bead (12) projecting in the direction of the membrane (6) is arranged, projecting into the recess (30).

An action toy consisting of a vertically mounted compression spring with a weighted top, and a means for preventing the base of the spring from bouncing away from the surface on which it is standing when the spring is compressed and released. The invention includes weighted projections extending horizontally and attached just below the top of the spring and clamps or weights on the base. It also includes a spring adjustment means on the base, a means of imbedding the ends of the springs, a means of indexing the top weight and the base weight with reference to each other and finger grips on the base. A piping of light weight non-attenuating material can be snaked around the coiled spring. A closure is added to the base and a filament is attached between the top of the spring and the base.

A disposable tourniquet comprising a buckle and a band attached at one end to the buckle, the buckle comprising a base into which the band can be laid and a laterally hinged clamp closure that can be closed over the band to grip it in the buckle and a hinged closure securing tab.

Disclosed is a high purity cyclopeptide compound, the chemical structure of which is represented by formula (I). R represents H or a cation capable of forming a pharmaceutically acceptable salt, the purity being greater than or equal to 99.0%. Further disclosed are preparation method and use of the high purity cyclopeptide compound.

A portable fire extinguishing apparatus, which comprises a casing (20) and a cartridge (3) arranged inside the casing (20). The top end of the cartridge (3) is fixedly connected with the casing (20) through a snap ring (24); the bottom of the cartridge (3) is fixedly connected with the casing (20) through some nuts and bolts; and an explosion venting unit (2) is arranged at the jet end of the cartridge (3). Kinetic energy generated from explosion is consumed through shifting and limiting processes of the explosion venting units (2), therefore recoil force or forward impact force generated after explosion of explosives can be consumed or released, so that safe and effective explosion venting is achieved and hurt to human bodies or articles after explosion of grains is avoided.

A fluid control device (10) includes a container (13), a pump (11), a solenoid valve (12), and a capacitor. The pump (11) is driven by a main power source, and is capable of pressurizing or depressurizing the inside of the container (13). A suction port and a discharge port of the pump (11) internally communicate with each other. The solenoid valve (12) is connected at both ends thereof to the container (13) and the pump (11). If the voltage of the main power source is reduced or lost, the solenoid valve (12) releases pressure in the container (13) by being driven by the power stored in the capacitor or secondary battery.

A tissue tunneler including an expandable attachment mechanism for securing a catheter. In one variation, the tissue tunneler comprises an elongate tunneler with a protrusion extending from the proximal end of the tunneler. An expansion mechanism is provided on the protrusion for insertion into the catheter. An oversleeve slidably disposed over the elongated tunneler may be provided to engage the expansion mechanism and trap the catheter between the oversleeve and the expansion mechanism. In another variation, the expansion mechanism may comprise of an expandable O-ring configured to engage an inner surface within a catheter.

A generator uses a working fluid in a single-cycle Rankine engine for up to three purposes: generation of electricity; generation of hot water from heat exchanger; and generation of chill by the evaporation of liquefied working fluid. The working fluid, which may be carbon dioxide, goes through a single Rankine cycle for both heat engine and heat pump. Instead of using a pump to liquefy the working fluid, the working fluid experiences cryogenic liquefaction method under controlled pressure. The Hui turbine is used for electricity generation. Heat source for the combined heat pump and heat engine could come from concentrated solar power or from burning a fossil fuel.

A high purity cyclopeptide crystal has a structure shown by Formula I. R represents H or a cation forming a pharmaceutically acceptable salt. Also disclosed are a preparation method and a use of the high-purity cyclopeptide crystal.

An image forming apparatus includes an image bearing member bearing a toner image, an endless rotatable transfer belt for transferring the toner image from the image bearing member to a transfer material, and a transfer device transferring the toner image from the image bearing member to the transfer belt. The transfer device includes a sheet member, one end of which is fixed and the other end of which comes in contact with an inner peripheral surface of the transfer belt, and a pressing member for pressing the sheet member to the transfer belt. In addition, a moving unit moves the pressing member in a moving direction of the transfer belt so that a contact state of the sheet member with respect to the transfer belt is changed.

A portable fire extinguishing apparatus, which comprises a casing (20) and a cartridge (3) arranged inside the casing (20). The top end of the cartridge (3) is fixedly connected with the casing (20) through a snap ring (24); the bottom of the cartridge (3) is fixedly connected with the casing (20) through some nuts and bolts; and an explosion venting unit (2) is arranged at the jet end of the cartridge (3). Kinetic energy generated from explosion is consumed through shifting and limiting processes of the explosion venting units (2), therefore recoil force or forward impact force generated after explosion of explosives can be consumed or released, so that safe and effective explosion venting is achieved and hurt to human bodies or articles after explosion of grains is avoided.