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| Number | Title | Issue Date |
| 7419134 | Valve actuation assembly A valve actuation assembly includes a housing and a vane connected to a shaft. The vane is at least partially disposed within the housing. The valve actuation assembly further includes a valve assembly connected to the housing and a feedback device connected to at l... | 09/02/2008 |
| 7390310 | Shunt valve locking mechanism A locking assembly is provided to simply and effectively prevent any unintentional adjustment of the adjustable valve mechanism in a fluid flow control device, without compromising the function of the device. The locking assembly generally includes at least one grip... | 06/24/2008 |
| 7333077 | Display device and electronic device A display device capable of displaying on both screens and switching between vertical and horizontal display, and a driving method thereof. Each pixel comprises a first region including a first light emitting element, and a second region including a second light emi... | 02/19/2008 |
| 7300004 | Traveling sprinkler incorporating automatic water supply valve docking station A docking station module for fluidly connecting a mobile irrigation apparatus to a stationary hydrant water supply valve mounted on a water supply pipe, the module comprising a hydrant valve actuator resiliently suspended from a frame for floating movement in at lea... | 11/27/2007 |
| 7150344 | Actuator and slack adjuster A fluid operated brake actuator is provided composed of a common housing, a shaft rotatable within the housing, the shaft being rotatable to engage and disengage a brake, a vane connected to the shaft, the vane being responsive to fluid pressure to rotate the shaft,... | 12/19/2006 |
| 7063302 | Sample valve with integral sample shut off function for chromatograph A multiple port valve integrated with the function of the sample shut off valve is disclosed. The integration of the sample shut off function eliminates extra plumbing and labor costs associated with a separate sample shut off valve. Additionally, the multiple port ... | 06/20/2006 |
| 7015458 | High density fiber optic output interface and system A fiber optic control system for controlling remotely located devices. The control system includes an illumination source for producing a light beam and a plurality of optical fibers. Each fiber is arranged to receive a respective portion of a light beam at a coupli... | 03/21/2006 |
| 6983760 | Vaned spool type directional control valve and four-way reversible valve for cooling cycle system using the same A vaned spool type directional control valve used to change a direction of motion of an actuator in an air pressure or oil hydraulic circuit includes a vaned spool having a valve portion and a vane portion integrally formed on a spool shaft. A chamber including a sh... | 01/10/2006 |
| 6945965 | Remote controlled urinary leg/bed bag drain valve An apparatus designed to empty a urinary drain bag having a battery powered wireless remote transmitter that activates a wireless remote controlled receiv r relay connected to a battery powered solenoid operated pinch valve that is attached to a flexible drain tube,... | 09/20/2005 |
| 6908068 | Adapters and adapter systems for valve closure systems and valve closure assemblies A valve closure assembly (50) for remotely and automatically closing railway tank car valves (V1, V2, V3, V4) characterized by a series of novel adapters (180, 240, 242, 244, 252, 254) for enabling one valve closure assembly... | 06/21/2005 |
| 6830073 | Four-way reversing valve A four-way reversing valve includes a valve casing having a plurality of ports through which fluid flows, a valve main body fixedly installed to the valve casing and having a valve chamber in which a plurality of main port connection holes for selectively connecting... | 12/14/2004 |
| 6742762 | Display device having a pixel portion A display device capable of switching over between vertical and horizontal display on a screen without using a frame memory is provided. A display device has a source signal line driver circuit (102), a first gate signal line driver circuit (103), and ... | 06/01/2004 |
| 6691587 | Actuator Actuators for subsea downhole chokes have tended to include hydraulic pistons which are prone to failure and crude in accuracy. The invention provides an actuator (1) having first and second rotary motors (2, 16) and an output region (3) arranged to engag... | 02/17/2004 |
| 6685159 | Wireless, intrinsically safe valve 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 p... | 02/03/2004 |
| 6543232 | Valve assembly for use in a gas fuel nozzle A valve assembly that is useful for controlling fuel delivery utilizes turbine power available from the steady state fuel flow within the valve assembly. A turbine element, which is moved by the steady state fuel flow, provides a motive force to a valve e... | 04/08/2003 |
| 6511040 | Pneumatic actuator Disclosed is a pneumatic actuator which includes a housing comprised of two halves and having at least two passages defined therethrough, including a "loop" groove defined in an inner peripheral wall of the housing into which a seal member is inserted. A ... | 01/28/2003 |
| 6452648 | Liquid crystal display panel and method for manufacturing the same A simple method for preventing oxidization of an aluminum surface of terminal electrode, increase of pressure contact resistance, unstability and reduction of connection reliability is provided. In a terminal electrode part on a reactive matrix substrate,... | 09/17/2002 |
| 6318701 | Pneumatic actuator Disclosed is a pneumatic actuator which includes a housing comprised of two halves and having at least two passages defined there through, including a "loop" groove defined in an inner peripheral wall of the housing into which a seal member is inserted. A... | 11/20/2001 |
| 6276660 | Rotary piston actuator with selective one-way wrapped spring clutches A pair of rotary pistons each have a drive shaft connectable therewith through respective one-way mechanisms. Each of the clutch mechanisms has a wrapped spring member surrounding the shaft and a linearly moveable piston to effect an operative connection ... | 08/21/2001 |
| 6274885 | Active matrix display device with TFTs of different refractive index In producing a semiconductor device by annealing with laser light irradiation, while a linear laser light is scanned in a direction perpendicular to a line, the annealing is performed for a semiconductor material. In this state, since an anneal effect in ... | 08/14/2001 |
| 6170801 | Valve closure system A valve closure system for rotating a rotatable actuator of a valve relative to a body of the valve to operate the valve from open to closed. The system contains a motor having a rotatable shaft, a mounting that comprises plural parts including a bracket,... | 01/09/2001 |
| 6152706 | Pneumatic pump and control means therefor A pneumatically operated reciprocating pump and pneumatic control means therefor having in separate chambers a geared air flow control mechanism and a piston/piston rod sub-assembly. The geared air flow control mechanism has two toothed gear members, the ... | 11/28/2000 |
| 6102362 | Gas motor actuator A gas motor actuator is provided for opening or closing an actuated valve, such as a pipeline valve, using power gas, which is a gas under pressure. The gas motor actuator includes a gas turbine motor, a high-volume shuttle valve coupled to the gas turbin... | 08/15/2000 |
| 6021998 | Power actuator for a rotary valve A rotary power actuator has an oscillating input member and an intermittent rotary output member. A controllable one-way mechanism, which is drivingly connected between the oscillating input member and the rotary output member, accommodates the intermitte... | 02/08/2000 |
| 6009574 | Method and apparatus for providing a pulsed water massage A pulsing valve for routing water flow from an inlet line to outlet lines connected to water jets arranged in an array to massage an occupant of a whirlpool spa or bathtub is provided. The pulsing valve includes a water turbine driving a selector disk thr... | 01/04/2000 |
| 5975106 | Rotary actuator valve closure apparatus The present invention relates to a novel single acting, valve closing actuator that when actuated is capable of closing an attached existing plug or gate valve, one that opens and closes within one quarter turn of operation. The newly designed actuator is... | 11/02/1999 |
| 5924442 | Countertorque assembly for automatic valve actuator A countertorque arm assembly mounts onto a pressure cylinder valve body for cradling an actuator that operates to rotate the valve stem in response to a sensed condition.... | 07/20/1999 |
| 5810051 | Substantially balanced bidirectionally pivoted valve operating apparatus The valve operating apparatus cycles valves between open and closed positions. The valve operating apparatus includes a trailer for use in towing behind other vehicles, for instance, behind a pickup truck. The trailer includes an engine, pump, battery, re... | 09/22/1998 |
| 5690144 | Directional control valve for switching the mode of operation in a heat transfer system A directional control valve is provided for switching the mode of operation in a heat transfer system which includes a compressor, for compressing a refrigerant, with discharge and suction ports, first and second heat exchangers, and an expansion valve pr... | 11/25/1997 |
| 5622202 | Tamper proof fire hydrant A tamper proof fire hydrant which may only be operated by the application of pressurized fluid. The pressurized fluid engages the fire hydrant and travels through a pathway in the upper portion of the fire hydrant. The pressurized fluid engages a turbinel... | 04/22/1997 |
| 5490932 | Fluid treatment valve system with nozzle driven turbine A control valve for a water treatment system which includes a turbine rotatably mounted within a water receiving chamber. A pair of nozzles communicate water from a water receiving chamber to the turbine in a driving relationship. The nozzles each define ... | 02/13/1996 |
| 5447285 | Safety device for cylinder valve automatic switching unit The invention relates to safety device for a cylinder valve automatic switching unit, wherein said valve is automatically closed when some abnormality such as down of an air pressure takes place. A first air-operated selector valve 8 is installed which ca... | 09/05/1995 |
| 5409034 | Electrically actuated valve for a pressurized fluid An electrically actuated valve for control of a pressurized fluid, particularly a sanitary valve, comprises a rotor (15) arranged in a housing (1) between an inlet passageway (6) and an outlet passageway (7). The rotor (15) is rotatable under the action o... | 04/25/1995 |
| 5386761 | Rotary valve actuator A valve actuator with an arcuate piston disposed within a housing including a side wall having a partition and two end plates whereby when joined, the housing forms a first and a second compartment. An arcuate piston travels between the compartments via a... | 02/07/1995 |
| 5381996 | Valve operator A valve operating machine has a reversable motor and a drive assembly for turning the stem of a valve, and a sensor for determining the torque applied to the valve stem. The amount of torque applied to the valve stem is regulated so as not to exceed the t... | 01/17/1995 |
| 5340078 | Actuator for valve Coupling apparatus includes a bracket fixed to the housing of an air motor and an actuator mechanism fixed to the rotary output shaft of the air motor for coupling the air motor in driving engagement with a handwheel-operated valve for remote power actuat... | 08/23/1994 |
| 5273073 | Control valve for a particulate blender A control valve for a particulate material blender which permits either blending or bypassing with pressurized gas or discharging the material without pressurized gas, but prevents undesirable interconnections. A cylindrical body with four access ports sp... | 12/28/1993 |
| 5257771 | Powered actuator for valve Coupling apparatus includes a bracket fixed to the housing of an air motor and an actuator member fixed to the rotary output shaft of the air motor for coupling the air motor in driving engagement with a handwheel-operated valve for remote power actuation... | 11/02/1993 |
| 5156504 | Machine tool fluid-feed assembly with distributing valve A rotary feed system for a machine tool capable of feeding, for example, an off-center or a centrally-supplied tool with a coolant, has at the downstream end of a shaft delivering a fluid medium, a rotary distributing valve which is actuated by a fluid, e... | 10/20/1992 |
| 5137252 | Angular pivoting power steering device A power steering device using a generally triangular valve member selectively pivoted by the pressurization of two chambers on either side of such valve member.... | 08/11/1992 |
