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| Number | Title | Issue Date |
| 7341072 | Oxygen supply system having a central flow control unit The present invention is a centralized flow control unit (CFCU) for regulating oxygen flow in a multiple user emergency oxygen distribution system in passenger aircraft. Upon activation, the CFCU initially allows unregulated flow of oxygen to surge into the distribu... | 03/11/2008 |
| 7252032 | Fluid actuator A fluid actuator configured for achieving extended cycle life and reduced overall actuator height. The actuator may include a nesting arrangement between portions of the actuator to reduce overall height and provide stability. The actuator may also join movable memb... | 08/07/2007 |
| 7182171 | Muffler with variable acoustic properties A muffler with variable acoustic properties. A pressure cell with a diaphragm, a spring, a piston, a piston rod, a closing element on the piston rod, and a pressure connection line are integrated into a housing. The diaphragm is thermally insulated against the pisto... | 02/27/2007 |
| 7163024 | Flow control valve and flow control device There are provided a flow control valve and a flow control device suitable for allowing flow control of a fluid with high accuracy. Diaphragms 8 and 9 are mounted to upper and lower openings, respectively, of an air chamber 6. The upper diaphrag... | 01/16/2007 |
| 7150299 | Assembly and method for containing, receiving and storing fluids and for dispensing gas from a fluid control and gas delivery assembly having an integrated fluid flow restrictor A fluid control and gas delivery assembly and method for containing, receiving and storing hazardous fluids and for dispensing gas comprising a container, a fluid fill path, a gas dispensing path, a first shut-off valve, a pressure reducer, a fluid flow restrictor, ... | 12/19/2006 |
| 7108241 | Flow control valve A flow control valve includes a main body 1, bonnet 2, spring receiving portion 3, piston 4, spring 24, first diaphragm 27, first valve member 5, second valve member 6 and base plate 7, wherein an openin... | 09/19/2006 |
| 7013916 | Sub-atmospheric gas delivery method and apparatus An apparatus for containing and delivering hazardous gases at sub-atmospheric pressure from a pressurized container is provided which includes a valve body in sealed communication with an outlet orifice of the pressurized container. The outlet orifice of the pressur... | 03/21/2006 |
| 6988513 | Proportional valve A multistage proportional valve for controlling the pressure of a fluid inside a container includes a fluid outflow passageway having an exhaust opening, an actuatable fluid inflow passageway having an intake opening and an actuatable exhaust cover for selectively c... | 01/24/2006 |
| 6953182 | Retainer lock nut for fluid pressure control device A control valve includes a valve body defining a top opening. A bonnet is provided for closing off the top opening of the valve body. A stem housed in the bonnet and the valve housing slidably moves a valve plug in the valve housing to open and close the valve. A pa... | 10/11/2005 |
| 6945507 | Gas flow control A gas flow controller includes a control valve coupled for actuating a main valve. In one example embodiment, a gas flow controller includes a main valve and a servo valve operated by an actuator, said servo valve being used for controlling the opening of the main v... | 09/20/2005 |
| 6908290 | Air conditioning compressor having reduced suction pulsation A compressor for an automotive air conditioning system includes a cylinder head that comprises a mixing chamber, suction chamber and discharge chamber. The cylinder head comprises a first annular wall defining a mixing chamber and a second annular wall disposed abou... | 06/21/2005 |
| 6905108 | Control valve flow adjustment device A valve includes a fluid inlet passage having a fluid inlet, a fluid outlet passage, an orifice between the fluid inlet passage and the fluid outlet, and a moveable valve plug adapted to move with respect to the orifice to vary the flow of fluid between the fluid in... | 06/14/2005 |
| 6682314 | Control valve for variable displacement type compressor A control valve has a valve housing and a valve chamber defined in the valve housing. A valve body is accommodated in the valve chamber for adjusting the opening degree of a supply passage. A pressure sensing chamber is defined in the valve housing. The p... | 01/27/2004 |
| 6575189 | Automatic valve An automatic valve includes a housing having an inlet passage and a passage to outlet, a linearly movable shaft disposed in the housing having two stops separated by a predetermined distance, a hydraulic unit connected to the housing and to the linearly m... | 06/10/2003 |
| 6481976 | Control valve and variable capacity type compressor having control valve A variable capacity type compressor has a tiltable swash plate and pistons. A control valve is arranged to change the pressure in the crank chamber, to vary the capacity of the compressor by changing the inclination angle of the swash plate by changing th... | 11/19/2002 |
| 6427967 | Valve, unit, assembly and system The invention relates to a valve incorporating a flexible diaphragm, and improves upon known diaphragm valves to permit the use of a diaphragm-controlled valve in systems for which such valves were not previously suitable or utilized. There is provided a ... | 08/06/2002 |
| 6234763 | Variable displacement compressor A variable displacement compressor the displacement of which is externally controlled is provided. The compressor has basically the same structure as prior art compressors except for simple differences. A pressure sensing chamber of a displacement control... | 05/22/2001 |
| 6227520 | Diaphragm piston valve A diaphragm piston having a diaphragm between a body and plate. A post integral with and extends from the body through the diaphragm and the plate. A stop is coupled to the post and limits the axial movement of the plate away from the body. A spring seat ... | 05/08/2001 |
| 6168134 | Exhaust gas recirculation valve with variable flow area A flow control valve having a controllable flow area which varies with the valve displacement. The flow control valve includes a poppet-type valve element mounted to reciprocate between a closed and open position in a valve cavity formed in a valve housin... | 01/02/2001 |
| 6146106 | Electromagnetic valve A control valve used in a variable displacement compressor. The valve includes a valve chamber having a valve hole. A valve body is accommodated in the valve chamber for selectively closing and opening the valve hole. An opening spring urges the valve bod... | 11/14/2000 |
| 6113063 | Actuator and exhaust brake unit thereof The object of the present invention is to provide an actuator possible to transmit an output from a power rod of the actuator as rotary motion, and to provide an exhaust brake unit using the actuator, easy to assemble, a small space necessary for installa... | 09/05/2000 |
| 6086039 | High-efficiency poppet and seat assembly A poppet and seat assembly comprises a poppet having a circular imperforate head portion at one poppet end and has an opposite end adapted for connection with a poppet actuator. The poppet head includes a valve seat interface surface along an outside head... | 07/11/2000 |
| 6062535 | Exhaust gas recirculation valve with variable flow area A flow control valve having a controllable flow area which varies with the valve displacement. The flow control valve includes a poppet-type valve element mounted to reciprocate between a closed and open position in a valve cavity formed in a valve housin... | 05/16/2000 |
| 6042081 | Diaphragm operated process flow valve The present invention is directed towards a diaphragm actuator valve with a keeper element for controlling the number of active coils in the actuator spring, thus controlling the spring tension. The apparatus is a diaphragm operated process flow valve, th... | 03/28/2000 |
| 6032920 | Actuator and exhaust brake unit thereof The objection of the present invention is to provide an actuator possible to transmit an output from a power rod of the actuator as rotary motion, and to provide an exhaust brake unit using the actuator, easy to assemble, a small space necessary for insta... | 03/07/2000 |
| 6026835 | High Cv bulk process valve, control system and method A high Cv bulk process valve, control system and method convey a process gas or liquid for manufacturing semiconductors through a fluid passage. The fluid passage contains an aerodynamically shaped expansion chamber within which a valve seat and a moveabl... | 02/22/2000 |
| 6007045 | Membrane valve assembly In a pneumatically or hydraulically driven membrane valve assembly with a pressure piece actuated by a pressure spindle, a membrane support member designed as a coupling member engages the pressure piece. The membrane member is connected to the membrane s... | 12/28/1999 |
| 5920247 | Actuator having a movable transmitting element with frictionless guidance An actuator for moving a setting member includes a force-generating device; a transmitting member for transmitting a force from the force-generating device to the setting member; a carrier spaced from the transmitting member; and first and second suspensi... | 07/06/1999 |
| 5918853 | Vacuum valve control device and vacuum valve A vacuum valve includes a housing having an operating chamber, a plunger provided in the housing; and a self-lubricating rolling diaphragm provided between the plunger and the housing. The rolling diaphragm may have a tapered form. A vacuum valve further ... | 07/06/1999 |
| 5890876 | Control valve in variable displacement compressor A control valve in a compressor that adjusts the discharge displacement based on controlling of an inclination of a cam plate. The compressor includes a supply passage for connecting a discharge chamber with a crank chamber. The control valve is placed mi... | 04/06/1999 |
| 5887847 | Digitally controllable flow rate valve A digitally controllable valve has a main valve member mounted on a diaphragm for movement sealing and exposing a main valve seat. A flow restriction on the main valve member varies the flow rate as a function of displacement of the main valve member from... | 03/30/1999 |
| 5829473 | Multi purpose valve A hydraulic control valve comprising a housing fitted with an inlet port and an outlet port, a sealing port intermediate the inlet port and the outlet port, dividing the housing into an inlet chamber and an outlet chamber with a diaphragm sealingly dividi... | 11/03/1998 |
| 5718410 | Small flow control valve with cartridge type seating arrangement A small flow control valve with cartridge type seating arrangement is shown and described. A conventional valve housing with inlet and outlet ports and a seat ring cartridge. A plug with a lower throttling profile engages within the seat ring bore. A defo... | 02/17/1998 |
| 5586744 | Boost device bypass valve A wastegate valve for use with turbocharged engines. The wastegate valve vents exhaust gasses upstream of the turbocharger high pressure turbine to reduce turbocharger speed and associated boost pressure. The wastegate valve includes a piston attached to ... | 12/24/1996 |
| 5575454 | Vacuum valve A vacuum valve including a casing having an inlet opening, an outlet opening, and a valve seat, a valve body accommodated in the casing and adapted to move rectilinearly between a position where it rests on the valve seat and a position which is away from... | 11/19/1996 |
| 5392807 | Fluid pressure actuated flow control valve A valve of the type in which a movable valve member is spring loaded to a normally closed position and operated to an open position by a fluid pressure responsive actuator and wherein the valve closing spring and pressure responsive actuator are enclosed ... | 02/28/1995 |
| 5326069 | Vacuum toilet system and discharge valve thereof A vacuum toilet system for efficient transport of waste material from a toilet bowl to a collection station by means of differential pressure, comprising an actuator button, a discharge valve, a water valve, and a controller valve. The various valves are ... | 07/05/1994 |
| 5280872 | Vacuum valve for a sewage collection system A vacuum valve comprises inlet and outlet pipes connected together to form a pipe line through which sewage flows, a valve element inclined to the pipe line and providing a selective communication between the inlet and outlet pipes, and a flexible or mova... | 01/25/1994 |
| 5279325 | Pneumatic control drive A pneumatic control drive 1, 51, 71 for control devices, in particular control valves, comprises a drive housing 5 and a drive member 11 displaceable therein and to which is affixed a drive element 18 displaceable together with said drive member 11 to act... | 01/18/1994 |
| 5246205 | Valve assembly and use A poppet valve assembly is provided. The preferred poppet valve assembly comprises a valve seat, valve head member and actuation arrangement. In the preferred embodiment, the valve head member comprises a flexible seal member and backing member, oriented ... | 09/21/1993 |
