| Patent Number |
Title Of Patent |
Date Issued |
| RE31161 |
Safety valve assembly for controlling clutch and brake in power press or the like |
March 1, 1983 |
| A valve assembly for a pressurized fluid line controlling a clutch and brake made up of a pair of valves having movable valve members with separate actuators, each of the valve members having inlet ports and outlet ports, the inlet ports being connected in series and the outlet ports |
| RE30403 |
Safety valve for fluid systems |
September 16, 1980 |
| A safety valve for use in a compressed air line having a supply valve and a control valve, to prevent inadvertent sudden shifting of the controlled part when the line is exhausted and later repressurized. The safety valve comprises a normally closed piston-operated poppet valve, the pist |
| D332822 |
Valve |
January 26, 1993 |
|
| D285246 |
Handle for a valve |
August 19, 1986 |
|
| D284989 |
Valve |
August 5, 1986 |
|
| D273698 |
Valve body |
May 1, 1984 |
|
| D267968 |
Muffler for a valve |
February 15, 1983 |
|
| D258953 |
Solenoid cover |
April 21, 1981 |
|
| D258905 |
Valve cover |
April 14, 1981 |
|
| D250658 |
Valve |
December 26, 1978 |
|
| D246908 |
Solenoid operated pilot valve |
January 10, 1978 |
|
| D246907 |
Solenoid valve operator |
January 10, 1978 |
|
| D246596 |
Cover for solenoid operated pilot valve |
December 6, 1977 |
|
| 7328719 |
Valve state sensing module |
February 12, 2008 |
| A sensing module for a fluid valve utilizes a sensor body having a sensing chamber. An extension member is fixedly coupled to a main valve element, is slidable within the sensing chamber along a first axis, and has an inclined cam surface. A plunger has a cam follower for engaging the ca |
| 7281464 |
Inlet monitor and latch for a crust breaking system |
October 16, 2007 |
| A system for selectively controlling movement of a piston between first and second positions, the system comprising a controller selectively actuated to enable fluid communication between a device and a source of pressurized fluid, a control valve for enabling fluid communication bet |
| 7213612 |
High pressure ball-poppet control valve with flow control |
May 8, 2007 |
| A control valve for operating a fluid-actuated device includes a fluid inlet, a fluid outlet and a passage in fluid communication between the fluid inlet and the fluid outlet, the passage defining a longitudinal axis. A valve seat is disposed in the passage and includes an upstream d |
| 7114521 |
Double valve constructed from unitary single valves |
October 3, 2006 |
| A double valve is constructed from first and second unitary valve assemblies each having a respective inlet port, a respective outlet port, a respective exhaust port, a respective first cross-mirror port, and a respective second cross-mirror port. A first plate is coupled to the firs |
| 7077148 |
Redundant valve system |
July 18, 2006 |
| The redundant valve system 10 of the preferred embodiments includes a first valve unit 12, a second valve unit 14, a third valve unit 16, a first diagnostic device 18, a second diagnostic device 20, and a control unit 22. The third valve unit has a first position that allows fluid flow |
| 6886593 |
Safety valve with pressure indicator |
May 3, 2005 |
| A fluid control valve includes an adjustable soft start capability and pressure indicator device. The fluid control valve isolates an input port and connects an outlet port to an exhaust port when the fluid control valve is in its closed position. A system is provided for locking the |
| 6840259 |
Dynamically-monitored double valve with retained memory of valve states |
January 11, 2005 |
| A double valve for controlling a machine tool has a memory such that when the valve is in its normal deactuated state and the inlet air supply is cycled (e.g., turned from on to off or from off to on), then the valve remains in the deactuated (i.e., ready to run) state. When the valve is |
| 6840258 |
Dynamically-monitored double valve with anti-tiedown feature |
January 11, 2005 |
| A double valve is reset when a source of pressurized fluid is connected to a reset port. When the source of pressurized fluid is removed from the reset port, a first reset piston is retracted so that a second pilot chamber receives pressurized fluid while a first pilot chamber continues |
| 6834661 |
Dual mode solenoid valve with pressure regulation |
December 28, 2004 |
| A control valve system includes a housing having an inlet port, a first output port, a second output port, and a valve chamber. A primary spool and a secondary spool are independently slidable in the valve chamber. The secondary spool has a first end for abutting against the primary spoo |
| 6824144 |
Kneeling valve |
November 30, 2004 |
| A kneeling valve assembly for transport vehicles to enable a quick and convenient kneeling operation to permit safe ingress and egress from the vehicle. The kneeling valve assembly employs a suspension member positioned between the vehicle body and the axle of the transport vehicle t |
| 6751520 |
Intrinsically safe microprocessor controlled pressure regulator |
June 15, 2004 |
| An intrinsically safe microprocessor controlled pressure regulator for operation in a hazardous environment. The intrinsically safe microprocessor controlled pressure regulator receives control commands that are input to a microprocessor in the hazardous environment. The microprocess |
| 6732761 |
Solenoid valve for reduced energy consumption |
May 11, 2004 |
| A control valve system including a housing having an inlet, a first output, and a second output. The control valve system further includes a slidable valve positionable in a first position, where fluid communication is established between the inlet and the first output; a second position |
| 6722390 |
Hydraulic double valve |
April 20, 2004 |
| A control valve system in which main valves are actuated and deactuated by operation of pilot valves. Actuation of pilot valves causes actuation of the main valves, which enables fluid pressure to be output from the control valve system. The main valves must shift within a predetermined |
| 6685159 |
Wireless, intrinsically safe valve |
February 3, 2004 |
| A valve system (10) that employs a piezo-electric element (38) to activate a fluid flow valve (18) so as to use a minimal amount of electrical energy. The piezo-electric element (38) activates a pilot pressure valve (36), which allows a control fluid to pass to a main control valve (44). |
| 6649035 |
Low energy and non-heat transferring crust breaking system |
November 18, 2003 |
| A pneumatic control system is provided for selectively controlling movement of a pneumatically-operated device between first and second working positions. The pneumatically-operated device includes a working portion and a pneumatic-control portion. The pneumatic-control portion is in flu |
| 6637462 |
Variable pressure control device |
October 28, 2003 |
| A control valve system having a housing defining an inlet, an outlet, and an exhaust. A first passage extends between the inlet and the outlet and a second passage extends between the outlet and the exhaust. The control valve system includes a first valve disposed within the first passag |
| 6609767 |
Pneumatic control system |
August 26, 2003 |
| A pneumatic control system for a freight car having a brake pipe, auxiliary and emergency reservoirs normally charged with pressurized fluid from the brake pipe, a fluid pressure activated brake cylinder device and an exhaust including an electronic controller, at least one pressure sens |
| 6604547 |
Double valve with cross exhaust |
August 12, 2003 |
| A control Valve system having a housing defining a first inlet, a second inlet, a first outlet, a second outlet, and an exhaust to define an intrinsically safe double valve. The double control valve system of the present invention further includes a pair of cross exhaust passages that |
| 6478049 |
Double valve with anti-tiedown capability |
November 12, 2002 |
| A control valve system having housing defining an inlet, an outlet and an exhaust. A first passage extends between the inlet and the outlet and a second passage extends between the outlet and the exhaust. A first plurality of valves are disposed within the first passage, each being s |
| 6431209 |
Multi-pressure ball-poppet control valve |
August 13, 2002 |
| A high-pressure primary fluid control valve and a multi-pressure selector fluid control valve are disclosed for operating a fluid-actuated device. Preferably a spherical ball-poppet and frusto-conical valve seat adapted for substantially line-contact therebetween are provided with an ups |
| 6431207 |
High-pressure ball-poppet control valve |
August 13, 2002 |
| A high-pressure fluid control valve is disclosed for operating a fluid-actuated device. Preferably a ball-poppet and frusto-conical valve seat adapted for substantially line-type contact therebetween are provided with an upstream restricted flow area in order to substantially minimize |
| 6318396 |
Double valve with anti-tiedown capability |
November 20, 2001 |
| A control valve system has two valve trains each of which has a series of valves which dynamically move between a deactuated position and an actuated position. An inlet of the valve system is connected to an outlet of the valve system when all of the valves are actuated and the outlet of |
| 6155293 |
Double valve with anti-tiedown capability |
December 5, 2000 |
| A control valve system has two valve trains each of which has a series of valves which dynamically move between a deactuated position and an actuated position. An inlet of the valve system is connected to an outlet of the valve system when all of the valves are actuated and the outlet of |
| 5927324 |
Cross flow with crossmirror and lock out capability valve |
July 27, 1999 |
| A control valve system has two valve trains each of which has a series of valves which dynamically move between a deactuated position and an actuated position. An inlet of the valve system is connected to an outlet of the valve system when all of the valves are actuated and the outlet of |
| 5918631 |
Ball-poppet pneumatic control valve |
July 6, 1999 |
| A pneumatic fluid control valve includes a valve body having a fluid inlet connectable to an external source of pressurized pneumatic working fluid, one or more load outlets, one or more corresponding exhaust ports, and a movable valve mechanism. The movable valve mechanism includes at l |
| 5912795 |
Circuit reset lockout |
June 15, 1999 |
| A reset lockout for a control device which functions to control and monitor the essentially simultaneous energization of two electromagnets (61, 62) in response to a respective electric signal (S1, S2) applied to said electromagnets essentially simultaneously, wherein each electromagnet |
| 5850852 |
Crossflow with crossmirror and lock out capability valve |
December 22, 1998 |
| A control valve system has two valve trains each of which has a series of valves which dynamically move between a deactuated position and an actuated position. An inlet of the valve system is connected to an outlet of the valve system when all of the valves are actuated and the outlet of |
| 5816132 |
Load-sensing pneumatic control system |
October 6, 1998 |
| A pneumatic control system for selectively controlling a pneumatically-operated device for controlling movement of a variable load, such as a material handling device or lifting and lowering device, is capable of automatically sensing the load exerted on the pneumatically-operated de |
| 5799561 |
Control device |
September 1, 1998 |
| A control device for controlling and monitoring two fluid valves, wherein each fluid valve comprises a drive means which is adapted for activation by an associated control signal, and a movable valve element which is biassed toward a first position in which fluid flow through the valve i |
| 5796571 |
Control device for a two-hand control means for controlling presses for instance |
August 18, 1998 |
| A control device contains two electromagnets (61, 62) in a respective current supply circuit (41, 44; 42, 44) which includes a biassed switch (20, 21) having first and second output terminals (2, 4), wherein the switches are biassed towards the first output terminal (2). When the mag |
| 5163353 |
Energy saving and monitoring pneumatic control valve system |
November 17, 1992 |
| An improved pneumatic control system is selectively deactuable and actuable for controlling movement of the armature of a pneumatically-operated device between first and second working positions and includes a timing subsystem that enhances the efficiency of the overall system by sta |
| 5113907 |
Dynamic self-monitoring air operating system |
May 19, 1992 |
| A safety monitoring system is provided for a pneumatic control system having a double safety valve arrangement. The monitoring system is adapted for preventing further operation of the control system in response to a malfunction of either the double safety valve or the monitoring system |
| 5067519 |
Safety valve for fluid systems |
November 26, 1991 |
| An improved safety valve includes piston-actuated provisions for gradually pressurizing a fluid-actuated motor during start-up of the system, preferably by way of a changeable flow restriction. In addition such improved safety valve preferably includes a floating exhaust valve actuat |
| 4930401 |
Valve system and arrangement for on-line valve replacement |
June 5, 1990 |
| Several embodiments are disclosed of an automatic shutoff valve apparatus for permitting removal, repair, or replacement of a control valve from a mounting base without deactivating a complete system. In addition, a redundancy arrangement is disclosed wherein the shutoff valve apparatus |
| 4883091 |
Multi-port self-regulating proportional pressure control valve |
November 28, 1989 |
| A multi-port, self-regulating, proportional control valve preferably uses a load output feedback system to produce working fluid load output pressures that are proportional to pilot control fluid pressures. In some embodiments, the control valve is programmable and capable of different |
| 4542767 |
Monitor for double safety valves |
September 24, 1985 |
| A safety monitor for a dual valve of the type that provides a malfunction signal when one of the valve members of the dual valve is not in its intended position. The monitor comprises a simple pressure sensing device that senses the pressure downstream of the inlet valve element of each |
| 4509556 |
Flow control for valve interface |
April 9, 1985 |
| A flow control for base mounted valves having a number of ports that extend through it and valve elements that are positioned for directly controlling the flow through at least certain of the ports. The valve elements include operators that are accessible at one end of the valve block fo |
