Class 251/76 - IMPACT TYPE ACTUATOR

Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter wherein the valve actuator is of the type
No. of patents: 36
Last issue date: 02/19/2008

Number	Title	Issue Date
7332238	Electrochemical cells and systems An electrochemical cell or cell system includes an air mover, such as a fan, and one or more pressure-sensitive mechanisms, such as a slit valve, that allow air to enter or to exit the cell or system. ...	02/19/2008
7226034	Solenoid valve actuator A solenoid operated valve is provided that comprises an inlet, an outlet, a valve seat in the flow path between the inlet and the outlet, and a valve member slidably mounted for movement in a direction aligned with but perpendicular to the plane of the valve seat, a...	06/05/2007
6935609	Microvalve for controlling fluid flow A microvalve for controlling fluid flow, including a body portion having at least one opening formed therein, a shutter located adjacent to and substantially parallel with the body portion, and a drive mechanism for causing the shutter to pivot with respect to the b...	08/30/2005
6719265	Electromagnetic actuator for a valve in the automotive field An electromagnetic actuator, particularly for use with valves in the automotive field, such as, for example, exhaust-gas recirculation valves, secondary-air valves, etc., having a housing with an electrical connector plug, a magnetic yoke, a coil unit, a guide eleme...	04/13/2004
6708947	Hysteresis reduction in an exhaust gas recirculation valve A solenoid actuator for an exhaust gas recirculation valve assembly including a resiliently-deformable element, for example, an undulated washer, disposed between the closed end of an armature guide tube and an axial face of the primary pole piece. The resilience of...	03/23/2004
6619322	Fast-acting valve A fast-acting valve includes an annular valve seat that defines an annular valve orifice between the edges of the annular valve seat, an annular valve plug sized to cover the valve orifice when the valve is closed, and a valve-plug holder for moving the a...	09/16/2003
6270130	Air bumper A bumper has a bumper frame and an inflatable bladder, which is mounted to the bumper frame to extend exteriorly of the bumper frame. Fluid flow ports extend from the inflatable bladder, in fluid communication with the interior of the inflatable bladder. ...	08/07/2001
6253785	Automatic leak shutoff device A water supply shutoff valve system is used with a fluid storage tank, such as a hot water heater, to automatically shut off the water supply to the storage tank as a result of leak containment which in turn causes a magnetic float to rise and consequentl...	07/03/2001
6213446	Exhaust gas recirculation valve having means to free a stuck valve member An exhaust gas recirculation valve in which an impact element is spaced from a head on a valve rod, in order to develop kinetic energy when activated end produce impact on the head to free a valve member which may have become stuck to the valve seat due t...	04/10/2001
6129333	Spring locking mechanism Apparatus for rapidly changing the state of a device from an active state to an inactive state. The apparatus includes an inner member slidably contained in an outer member. The member is connected to an actuator and the other to a control for changing th...	10/10/2000
6126214	Air bumper A bumper has a bumper frame and an inflatable bladder, which is mounted to the bumper frame to extend exteriorly of the bumper frame. Fluid flow ports extend from the inflatable bladder, in fluid communication with the interior of the inflatable bladder. ...	10/03/2000
6095485	Valve actuating device having a reduced impact operating mechanism A valve actuating device is provided for opening and closing a valve of the type having a valve housing, a valve member sealingly engageable with a valve seat formed in the valve housing, and a valve stem attached to the valve member for moving the valve ...	08/01/2000
5975110	Adapter assembly for accessing primary pipeline of a double wall pipeline system An adaptor assembly connects a primary pipeline of a double wall pipeline to a dispensing pipeline at a ground level gasoline service station dispenser unit in a manner which permits access to the primary pipeline for installation and periodic replacement...	11/02/1999
5967485	Quick-action valve The valve has a chamber (11) in a housing (10), wherein a valve seat (17) closed by a valve body (19) is arranged. The valve seat (17) is abruptly moved by an actuator (15), the valve body (19) not being able to follow due to its inertia and the valve sea...	10/19/1999
5941500	Valve actuating device having a reduced impact operating mechanism A valve actuating device is provided for opening and closing a valve of the type having a valve housing, a valve member sealingly engageable with a valve seat formed in the valve housing, and a valve stem attached to the valve member for moving the valve ...	08/24/1999
5791328	Air valve for marking pellet gun A valve, especially for use in a paintball gun which includes a pressure chamber bore for receiving gas from a source, an exhaust bore which leads to a barrel, and a valve chamber bore between the pressure chamber bore and exhaust bore. The valve includes...	08/11/1998
5526837	Solenoid controlled one-way valve A poppet valve assembly comprising a valve housing defining a chamber and first and second spaced apart flow openings enabling flow through the chamber, a valve seat surrounding one opening, a valving member comprising a valving element positioned for eng...	06/18/1996
5427353	Drilling mud circulating pit clean out gate valve A drilling mud circulating tank clean out valve is formed by a wedge-shaped valve body having an apertured planar surface secured to the wall of the circulating tank around a cleanout opening adjacent its bottom to form a fluid outlet passageway. A wedge-...	06/27/1995
5213306	Quick-action flap In a quick-action flap, in which opening occurs by means of hydraulic actuation and closing can be initiated by a spring, two independent systems are provided, namely a servo system. (1) and a flap disk system (2), which are connected to one another via a...	05/25/1993
5101850	Filter change liquid shutoff safety interlock device A liquid shutoff safety interlock device is provided which ensures that fluid flow to a filter is stopped prior to filter removal without requiring the use of a complex and expensive filter valve assembly and without requiring any substantial modification...	04/07/1992
5037062	Quick acting ball valve A separating wall having a valve opening is disposed between a chamber holding a high pressure and a chamber holding a low pressure. The valve seat is closed by a ball acting as a valve body. For a quick opening of the valve, an actuating member imparts a...	08/06/1991
4705070	Isolation on/off valve Fluid-flow control apparatus is disclosed by which magnetically-positionable elements within a rigid body can be externally manipulated using a controlling source of magnetic flux. The relative attractive forces which bias internal magnetic elements into ...	11/10/1987
4694860	Fluid-flow isolation and control apparatus and method Fluid-flow control apparatus and method are disclosed by which magnetically-positionable elements within a rigid body can be externally manipulated using a controlling source of magnetic flux. The relative attractive forces which bias internal magnetic el...	09/22/1987
4637425	Sewer check valve with cutting seat In place of one of the usual blunt seats, a sewer check valve has a knife-edge extending from one of the seats to eliminate holding of compressed, relatively tough chunks of sewage between seats by cutting through the chunks, and has room for the cut piec...	01/20/1987
4619284	Pyrotechnic valve The pyrotechnic valve according to the invention comprises one or more pyrotechnic devices able to produce gases under a high pressure, which has the effect of suddenly deforming a membrane equipped with a rigid weight. The latter projects a punch, which ...	10/28/1986
4592533	Solenoid-operated two-way directional needle-valve, normally closed The valve described herein comprises a movable core (28) which is drawn toward a fixed core (21) once the valve is opened by excitation of its coil, or solenoid (24). The valve's needle-obturator (17) is capable of moving axially with respect to the movab...	06/03/1986
4558715	Apparatus for injecting measured quantities of liquid into a fluid stream A liquid additive injection pump has a hydraulic motor comprising a differential piston assembly reciprocable in a housing under the urging of a primary liquid into which an additive is to be injected. The piston assembly carries valves which are responsi...	12/17/1985
4445532	Pressure regulator system A pressure regulator system for providing controlled reduction of fluid pressure from a relatively high pressure fluid source to a relatively low regulated fluid pressure output. The pressure regulator system includes a pressure reduction regulator design...	05/01/1984
4429704	Shock responsive rotary actuator A device for turning a valve stem or the like between two positions in response to earthquake forces or other shock forces, and including a member which is spring urged rotatively in a predetermined direction relative to a body structure and which has a l...	02/07/1984
4304258	Solenoid valve assembly A solenoid valve assembly including a movable armature acting through a lost motion unit for moving a valve member to an open position. The lost motion unit stores armature stroke energy during an initial stage of armature stroke, and sums the stored ener...	12/08/1981
4296913	Ball valve A ball valve having a floating ball and an actuator for rotating the ball reduces operating torques by imparting an initial movement to the ball other than in the valve opening and closing rotation. This initial movement overcomes the adhesion friction, f...	10/27/1981
4055500	Filtering apparatus and quick-opening backwash valve therefor Filtering apparatus in which a fluid filter has a filtering flow passage with an inlet end connected to an inlet control valve, and an outlet end connected with an outlet control valve, said filter having a fluid storage reservoir in communication with th...	10/25/1977
4008876	Solenoid valve When the valve is closed, the pressure differential across the valve port area acts to hold the valve on its seat and must be overcome to open the valve. At this time the gap between the armature and the core of the solenoid is at its greatest and, theref...	02/22/1977
3974998	Spray coating apparatus Spray coating apparatus featuring an improved solenoid valve construction in which response time of the valve actuation is improved by a free-traveling armature. The armature which is unrestrained by spring or other means has an annular shoulder portion w...	08/17/1976
3949964	Electromechanically-operated valve An improved electromechanically-operated valve is provided having a main balanced piston-valve controlling an inlet port, and a cooperable relatively-movable valve-stem piston-assembly electrically actuated by a repulsion coil, for example, or a similar e...	04/13/1976
3934601	Method of and arrangement for feeding pressure fluid in pulses A method of and arrangement for feeding pressure fluid in pulses through a valve according to which the valve body is caused to momentarily lift from its seat by means of impulse waves generated in the valve housing by impacts thereagainst....	01/27/1976

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Class 251/76 - IMPACT TYPE ACTUATOR