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Ballistic resistant body covering

A ballistic resistant body covering for protecting the torso, groin and neck area from ballistic missiles.

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Class 137/514.7 - Enlarged piston on end of valve stem


Subclass of Class 137 - Fluid handling
Definition: Devices wherein an enlarged member on the end of a valve
No. of patents: 73
Last issue date: 03/29/2011


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NumberTitleIssue Date
7913715Relief valve including a check valve in a damping chamber
A relief valve includes a body, a damping chamber in the body, a poppet in the body, wherein the poppet includes an end in the damping chamber, and a check valve in the damping chamber. The damping chamber is located adjacent an inlet side of the relief valve, and t...
03/29/2011
7302961Surge relief valve
A surge relief valve comprising a main valve body having a dome port and an inlet port. The inlet port is in fluid communication with a first fluid. The invention further includes a dome reservoir connected to the main valve body via the dome port and arranged to ho...
12/04/2007
7287547Inlet or outlet valve for a pump
An inlet or outlet valve for a pump comprises a closing body (3) pretensioned by a spring element (4). The closing body (3) can open or close a passage on a valve seat (2). The valve also comprises a guide element (5) for guiding t...
10/30/2007
7234486Pressure limiting valve for fuel injection devices
A pressure limiting valve is provided which has a valve body assigned on the high-pressure side to a valve seat and an operating piston combined with the valve body to form a unit. The valve body and the operating piston are jointly spring-loaded and bound a pressur...
06/26/2007
7178784Valve assembly and method
The present invention discloses, among other things, a valve assembly that includes a body, a valve, a biasing mechanism, and a guide. The body includes a shaped cavity and the valve includes an elongated portion and a shaped valve head that has an exterior surface ...
02/20/2007
7168446High impact discharge valve
A check valve for use in a pump. The valve is arranged to be subjected to severe service conditions and high impact loads, yet be resistant to damage to its components. The check includes a body, a valve seat, a poppet and an impact cushion. The poppet is movably co...
01/30/2007
7156267Valve unit for filling machines
The present invention relates to a valve unit for container filling machines, particularly for bottle fillers. More particularly, the present invention relates to a valve unit (1), particularly for machines for filling containers (8), comprising a holl...
01/02/2007
7124774Control valve
A control valve for regulating flow of fluids passing through the valve. The control valve includes a body with an inlet, an outlet and a passageway through which the fluid passes from the inlet to the outlet. The control valve also includes a displaceable column pr...
10/24/2006
7117891Hydraulic coupling comprising a pressure bleed device
The invention is directed to a pressure bleed device for a hydraulic coupling which includes a male component that comprises a body, a flow passage which extends generally axially through the body, a valve seat which is formed proximate one end of the flow passage, ...
10/10/2006
7066201Valve device having solid engaging structure
A valve device includes a housing including a peripheral valve seat extended into a chamber, to separate the chamber into two separated spaces. A valve member includes an outer peripheral groove to receive a sealing ring for engaging with the peripheral valve seat o...
06/27/2006
7028709One-way valve with poppet member
The valve includes a supply portion, a delivery portion and an intermediate fluid chamber; a poppet member is positioned within the fluid chamber and is adapted to move within the chamber, the poppet including a conical seating surface and a rim portion, the rim por...
04/18/2006
6978799Emergency pressure relief valve with enhanced reset
A pressure relief valve has a housing fluidly connected to a pressurized system line carrying a system fluid. The housing carries a moveable piston and a valve member that both move between closed and open positions. The piston defines an upper chamber and a lower c...
12/27/2005
6966380Valves for use in wells
A valve assembly to control the intake of fluid. The valve assembly has a valve body and a valve choke disposed therein. The valve choke has a choke bore through the interior of the valve choke. The valve choke has a plurality of orifices to the choke bore spaced at...
11/22/2005
6966302Fuel system and flow control valve
A valve for controlling flow of a fluid includes a valve body defining at least in part an inlet, an outlet, at least one chamber, and an orifice in communication with the chamber. A valve member is received at least in part in one chamber for reciprocation or rotat...
11/22/2005
6918407Pneumatic reset relief valve
A safety device protects a mud pump from an over pressure condition, which can occur during normal operation. The mud pump discharge couples to a high pressure inlet at the bottom of a valve body and the discharge outlet from the valve discharges to the side of the ...
07/19/2005
6874536Gas supply apparatus
An apparatus for supplying pressurized gas to a plurality of gas outlets from an upstream gas supply, in which each of the plurality of gas outlets in use is connected to a common gas feed line via a respective valve, each valve being adapted to close to prevent the...
04/05/2005
6796260Elastomeric ejection system with acoustically improved check valve
A system for launching bodies from a submarine includes a pump for transferring seawater to an elastomeric ejection tank, and a check valve that permits transfer of the seawater to the tank, and closes upon filling of the tank. The valve includes a head and a seat, ...
09/28/2004
6564827Shut-off device for the filling device of a pressure tank
The invention relates to a shut-off apparatus for the charging device of a pressure vessel, especially for the storage of cryogenic liquefied gases, having a shut-off valve with a valve housing and a valve body stressed by a closure spring which, in order...
05/20/2003
6510867Pressure relief valve
A pressure relief valve has a main valve body, a fluid inlet passageway, a fluid outlet passageway, and a piston contained within the main body. The piston has a piston head, slidingly and sealingly engaged within a pressurized cavity in the main valve bo...
01/28/2003
6209561Emergency pressure relief valve
An emergency pressure relief valve has a housing fluidly connected to a pressurized system line carrying a system fluid. The housing carries a piston and a valve member which move within the housing between a closed position and an open position. The pist...
04/03/2001
6132191Check valve for scroll compressor
A series of check valves are disclosed for use in a scroll compressor which control and dampen the closing of the check valve to reduce noise during rapid pressure fluctuations encountered during normal operation and to control loss of gas in a discharge ...
10/17/2000
6102072Water-hammerless check valve
The present invention is intended to provide an economically advantageous, high-performance water hammer preventing check valve capable of preventing both water hammer and pressure rise under any pipeline conditions when feed of a fluid is stopped and of ...
08/15/2000
5975129Hydraulically operated pressure relief valve
This disclosure is directed to a relief valve connected to the output manifold of a triplex mud pump. The valve body includes an inlet mud flow opening, an internal passage with a movable valve element to modulate flow, and a mud outlet opening for connec...
11/02/1999
5921276Piston-type check valve with diffuser
An axial recess is formed in the downstream end of the diffuser body. An annular tail member is mounted on the downstream end of the valve piston. The tail member retracts into the recess when the piston is in the closed position and provides an extension...
07/13/1999
5871109Railcar cushion device preload valving systems
A pressure relief valving system for a rail car cushion device including several preload valves mounted in the cylinder wall of the cushion device each having both spring biasing and hydraulic biasing applied to retain a valve piston against a seat until ...
02/16/1999
5826735Railcar cushion device valving systems
A valving system for a rail car cushion device including several pressure control relief sequence valves (PCRS) mounted in the cylinder wall of the cushion device each having hydraulic biasing applied to retain a valve piston against a seat until a preloa...
10/27/1998
5787926Overload preventive device
An overload preventive device is capable of preventing elevation of preload pressure due to sticking action or break-through load of a hydraulic cylinder of a press machine. A delay valve for opening when the internal pressure of the load detecting circui...
08/04/1998
5685334Fuel additive metering system
A fuel additive system is disclosed which comprises a sensing device for determining the flow rate of fuel into the system and for generating a signal in dependence upon the fuel flow rate, a control system for conditioning the signal to produce a proport...
11/11/1997
5678604Fast opening, slow closing, relief valve
A valve is indicated as well as a device for controlling the valve body in a valve, which is special in that the travel of the valve body in the valve housing is insignificantly damped in the opening movement of the valve, and strongly damped in the closi...
10/21/1997
5603348Damped poppet valve
A valve includes a body member having spaced apart first and second fluid passages and a bore in communication with the passages. The bore includes a valve seat interposed at one end of the bore between the first and second fluid passages, a discharge cha...
02/18/1997
5456283Infinite hydraulic check
An infinite hydraulic check for use with a door that maintains the door in any position until an appropriate check effort is applied to release the door from the position. The check includes an annular needle cavity with a closed first portion and a secon...
10/10/1995
5443088Squib valve
A squib valve which has an inlet port associated with a pressurized fluid source, an outlet port, flow initiation apparatus for initiating a flow of the pressurized fluid between the inlet port and the outlet port, apparatus for activating the flow initia...
08/22/1995
5441072Fuel additive metering system
A fuel additive system is disclosed which comprises a sensing device for determining the flow rate of fuel into the system and for generating a signal in dependence upon the fuel flow rate, a control system for conditioning the signal to produce a proport...
08/15/1995
5439027High pressure regulating valve
A high pressure poppet-type regulating valve for controlling fluids that have been pressurized up to approximately 20,000 psi (1,400 kg/cm2). In the preferred embodiment the disclosed gas-dampened valve includes a stainless steel tapered poppet...
08/08/1995
5362219Internal combustion engine with compound air compression
A rotary air compressor with a housing forming an epitrochoidal chamber in which a multilobed rotor with a ring gear eccentrically rotates on an internal central gear in the housing, the rotor dividing the chamber into multiple subchambers of changing vol...
11/08/1994
5261450Pressure relief vent with surge suppression
A device relieves a positive pressure difference between the inside of a vessel and the outside of the vessel through an opening in the vessel. The device has a base portion, a cap portion and a biasing means. The base portion has a means for mounting the...
11/16/1993
5251618Regulator second stage for scuba
The regulator second stage for scuba incorporates a pneumatically balanced valve mechanism of high flow capacity which operates without significant influence from friction. The compression spring is suspended between two axially opposed pins to avoid fric...
10/12/1993
5240036Check valve with poppet dashpot/frictional damping mechanism
An inline check valve for a flow line where the valve element is guided for inline travel forward and rearward of a valve sealing member and is spring biased to a closed sealing condition. One of the guides for the valve element includes a dashpot housing...
08/31/1993
5234482Retarding valve at a single-tower air drier
A retarding valve at a single-tower air drier for obtaining a controlled time for the flow of regenerating air from an air tank to a desiccant cartridge has a movable valve stem (7), which is provided with a piston (14) having a slightly smaller diameter ...
08/10/1993
5232013Check valve with poppet damping mechanism
An inline check valve for a flow line where the valve element is guided for inline travel forward and rearward of a valve sealing member and is spring biased to a closed sealing condition. One of the guides for the valve element includes a dashpot bore an...
08/03/1993
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