Impact Type Actuator Patents (Class 251/76)
  • Patent number: 9200720
    Abstract: A variable flow valve having an externally threaded valve body, a valve element and an actuator that includes coil and a plunger assembly. The coil can be operated to move the plunger assembly to drive the valve element into engagement with a seat surface on a valve seat in the valve body.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: December 1, 2015
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Charles G. Stuart, James P. Downs
  • Patent number: 8499794
    Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: August 6, 2013
    Assignee: Fujikura Kasei Co., Ltd.
    Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
  • Publication number: 20120204839
    Abstract: Provided is an electromagnetic fuel injection valve capable of reducing fuel injection amount fluctuations by flattening chromium-coated impact surfaces of a movable core that impact with a stationary core or a valve plug. A movable valve element comprises a movable core, which has a cylindrical structure, and a valve plug, which is formed separate from the movable core and retained on a hollow side of the movable core to reciprocate together with the movable core with the electromagnetic attractive force and a force of a return spring. The movable core has a first impact surface, which impacts with the end face of the stationary core, and a second impact surface, which impacts with a retained surface of the valve plug, the first and second impact surfaces being coated with a chromium film layer. The chromium film layer is formed by setting a positive electrode for plating on a central axis line of the movable core.
    Type: Application
    Filed: August 18, 2010
    Publication date: August 16, 2012
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Hisashi Ohwada, Tohru Ishikawa, Motoyuki Abe
  • Publication number: 20110175001
    Abstract: A gravity driven valve switch includes an acted component, which defines an internal receiving space having a bottom forming a through hole; an acting component, which is received in the acted component; and a driving component, which is arranged below the acted component in a movable manner and forms at least one through hole. The acting component forms a coupling portion and the driving component forms a connection section that is received through the through hole of the acted component whereby the coupling portion and the connection section are engageable with each other to allow for easy coupling and separation of the acting component and the driving component and whereby the driving component provides a weight that, together with a gravitational force acting on the acting component, drives the acting component downward to precisely and tightly seal the through hole of the acted component.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 21, 2011
    Inventor: MING-TUNG LIU
  • Publication number: 20110127452
    Abstract: A switching valve includes a fluid housing, at least one switching element within the fluid housing, and an actuator outside the fluid housing, wherein the actuator is configured to cause a pulse-like transmission of force on the switching element by means of an impact-like force effect on the fluid housing, so as to move the switching element from a first position to a second position, the switching element in the first position defining a first fluidic state of a fluid path through the fluid housing, and the switching element in the second position defining a second fluidic state of a fluid path through the fluid housing, which second fluidic state differs from the first fluidic state.
    Type: Application
    Filed: July 15, 2008
    Publication date: June 2, 2011
    Inventors: Heinz Kueck, Volker Mayer, Karl-Peter Fritz
  • Patent number: 7226034
    Abstract: 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, and a lever having one end in connection with the valve member and a pivotal end that is operable for moving the valve member between its closed and open positions. The solenoid operated valve further comprises a solenoid actuated member having spaced apart first and second surfaces for engaging the pivotal end of the lever to move the valve member between its closed and open position, and a spring for resiliently biasing the solenoid actuated member so that the first surface engages the pivotal end of the lever to move the valve member to a closed position against the valve seat when the solenoid is not energized.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: June 5, 2007
    Assignee: Emerson Electric Co.
    Inventors: Mark H. Stark, Donald L. Blessing, Mike C. Santinanavat
  • Patent number: 6935609
    Abstract: 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 body portion so that the shutter is brought into and out of alignment with the opening of the body portion, wherein the microvalve is in a closed position and an open position, respectively.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: August 30, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Faiz Feisal Sherman, Vladimir Gartstein, Daniel Jonathan Quiram
  • Patent number: 6719265
    Abstract: 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 element, a magnetic core and an armature that cooperates with a valve adjusting member. The armature is formed by first and second armature elements, the second armature element being in the form of a disk mounted so that it is spaced from the first armature element by an air gap when current is not supplied to the actuator whereby high, abrupt force is developed on the first armature element to open the valve when current is supplied.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: April 13, 2004
    Assignee: Pierburg GmbH
    Inventors: Martin Kloda, Markus Herring, Gunther Weitkamp, Heinz Creutz
  • Patent number: 6708947
    Abstract: 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 the element is selected to prevent sliding of the guide tube within the pole piece due to frictional drag on the tube by an armature; to absorb and store kinetic energy transferred by the armature impacting the closed end of the guide tube; and to reduce hysteresis by returning stored energy to assist the armature in accelerating in the reverse direction. The element may take any of several forms.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: March 23, 2004
    Assignee: Delphi Technologies, Inc.
    Inventor: Raul A. Bircann
  • Patent number: 6619322
    Abstract: 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 annular valve plug on and off the annular valve seat. The use of an annular orifice reduces the characteristic distance between the edges of the valve seat. Rather than this distance being equal to the diameter of the orifice, as it is for a conventional circular orifice, the characteristic distance equals the distance between the inner and outer radii (for a circular annulus). The reduced characteristic distance greatly reduces the gap required between the annular valve plug and the annular valve seat for the valve to be fully open, thereby greatly reducing the required stroke and corresponding speed and acceleration of the annular valve plug.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: September 16, 2003
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Bogdan V. Wojciechowski, Robert J. Pegg
  • Patent number: 6270130
    Abstract: 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. Inlet valves and pressure relief valves are mounted in the flow ports for sealing air within the inflatable bladder. Two impact members are mounted to the bumper frame, extending outwardly from the bumper frame and interiorly within the inflatable bladder. The impact members are connected to respective ones of the pressure relief valves, such that inward movement of the impact members will open the pressure relief valves to allow fluid flow from within the inflatable bladder. Latch members are located adjacent to the pressure relief valves for securing the valves in open positions after impact.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: August 7, 2001
    Inventor: Sun Young Kim
  • Patent number: 6253785
    Abstract: 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 consequently produce the mechanical force necessary to release and close a spring loaded water supply valve.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: July 3, 2001
    Inventors: Carlis L. Shumake, Jr., Wallace M. Sumner
  • Patent number: 6213446
    Abstract: 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 to deposits on the seat from the recirculating exhaust gas. The impact member is activated when the engine is started and after the valve disk is free, the exhaust gas recirculation valve operates conventionally.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: April 10, 2001
    Assignee: Pierburg AG
    Inventors: Heinrich Dismon, Armin Schürfeld, Dieter Thönnessen
  • Patent number: 6129333
    Abstract: 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 the state of a device. A latch mechanism normally holds the two members locked together so that the control means responds to the actuator. When a potentially dangerous situation is sensed, the latch mechanism is opened and the two members are rapidly forced apart by a heavy release spring thus rapidly changing the state of the device from an active state to an inactive state.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: October 10, 2000
    Assignee: Young & Franklin
    Inventor: Weijian Ma
  • Patent number: 6126214
    Abstract: 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. Inlet valves and pressure relief valves are mounted in the flow ports for sealing air within the inflatable bladder. Two impact members are mounted to the bumper frame, extending outwardly from the bumper frame and interiorly within the inflatable bladder. The impact members are connected to respective ones of the pressure relief valves, such that inward movement of the impact members will open the pressure relief valves to allow fluid flow from within the inflatable bladder. Latch members are located adjacent to the pressure relief valves for securing the valves in open positions after impact.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: October 3, 2000
    Inventor: Sun Young Kim
  • Patent number: 6095485
    Abstract: 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 member between a closed position and an open position. The valve actuating device includes a housing which is attachable to the valve housing of the valve, a motor mounted on the housing, a pinion gear which is coupled to the motor by a shaft, the pinion gear being drivable by the motor via the shaft. The device further has a rack including a body having an end portion which is engageable with the valve stem of the valve and a longitudinal cutout along a side of the rack. The rack is moveable between a first position in which the valve is in its open position and a second position in which the end portion of the rack engages the valve stem for maintaining the valve stem in its closed position.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: August 1, 2000
    Assignee: Honeywell International, Inc.
    Inventors: Benno Lebkuchner, Robert W. Castle
  • Patent number: 5975110
    Abstract: 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 purposes. The assembly includes a casing and a disengageable seal system. The casing is attached to a terminus of the secondary pipeline. The disengageable seal system is operably associated with the casing to terminate an annular space between the primary pipeline and the secondary pipeline to contain the flow of any leakage from the secondary pipeline. In some embodiments of the invention, a coupling is attached to a terminus of the primary pipeline to provide a flowpath for conveyance of gasoline. The disengageable seal system is also operably associated with the coupling.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: November 2, 1999
    Inventor: Bruce R. Sharp
  • Patent number: 5967485
    Abstract: 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 seat (17) being opened a little. Thereafter, the valve body (19) hits a plunger (20) moved by the actuator (15) together with the valve seat (17). By this impact, the valve body (19) is moved fully off from the valve seat (17) so that the outflow opening (13) is cleared entirely. Then, the flow drives the valve body (19) back into the closed position. Using this valve, short switching periods with a large valve opening degree may be achieved.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: October 19, 1999
    Assignee: Deutsches Zentrum fuer Luft- un Raumfahrt e.V.
    Inventor: Dietmar Neuhaus
  • Patent number: 5941500
    Abstract: 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 member between a closed position and an open position. The valve actuating device includes a housing threadably attached to the valve housing of the valve, and a motor, mounted on the housing, for driving a shaft having a pinion gear upon activating the motor. The device further includes a rack having a body with an end portion thereof engageable with the valve stem of the valve, and a rack segment, disposed between the rack and the pinion gear, for moving the rack between a first position in which the end portion of the rack engages the valve stem for maintaining the valve stem in its closed position, to a second position in which the rack is moved by the rack segment upon activation of the motor via the pinion gear of the motor for opening the valve.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: August 24, 1999
    Assignee: Sparco Inc.
    Inventor: Benno Lebkuchner
  • Patent number: 5791328
    Abstract: 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 a body mounted in the valve chamber bore with a flow path between the pressure chamber and exhaust bores, and a cupseal seat on the upstream side of the flow path. A valve stem passes through a portion of the flow path and is slidably supported by a support nose, and presents an actuation surface at one end, and supports a cupseal to mate with the seat at the other end. The cupseal has radial guide legs to closely and slidably contact the pressure chamber bore to aid alignment. The cupseal will normally be held against the seat by gas pressure and/or a spring; to open the valve, the gun may be provided with a hammer which is released to strike the actuation surface of the valve stem, to unseat the cupseal and allow gas to flow into the barrel.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: August 11, 1998
    Inventor: Aaron K. Alexander
  • Patent number: 5526837
    Abstract: 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 engagement with the valve seat and a stem element fixed to and projecting from the valving element, the valving element movable between an open position spaced from the valve seat for enabling fluid flow through the housing and a closed position engaged with the valve seat, a solenoid assembly comprising an armature movable with respect to the valving member and the valve housing, the solenoid having an energized condition wherein the armature is subjected to an electromagnetic force and a de-energized condition, a spring system reacting between the housing and the valving member and coacting with the solenoid assembly to control positioning of the valving member, and anti-adhesion structure operative to shed material bridging the valve seat and the valving memb
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: June 18, 1996
    Assignee: Robertshaw Controls Company
    Inventor: Garlan L. Eaker
  • Patent number: 5427353
    Abstract: 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-shaped valve is vertically moveable in the valve body for seating and sealing with a valve seat.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: June 27, 1995
    Inventor: Darrell R. Lewis
  • Patent number: 5213306
    Abstract: 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 coupling (1a, 2a). The coupling itself has, between the coupling part (1a) on the servo side and the coupling part (2a) on the flap disk system side, a free-wheel which makes it possible for the forces occurring upon impact of the flap disk (14) on the seating ring in the flap casing (9) to be divided up in accordance with the kinetic energy of the moving masses of each system (1, 2). The free-wheel thus distributes the stressing over two successive impacts, whereby the stress in the lever (12) of the flap disk (14) is reduced by approximately one half. A hydraulic brake in the servo system (1) ensures that the closing speed of the flap disk is kept constant approximately in the last third of the closing process.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: May 25, 1993
    Assignee: Asea Brown Boveri Ltd.
    Inventors: Heinrich Lageder, Jan Ramisch, Karel Skala
  • Patent number: 5101850
    Abstract: 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 of existing components. The invention is particularly, though not exclusively, adapted to fuel dispensing equipment supplied by a remote pump and installed with a filter above and an impact valve below each fluid supply inlet. The liquid shutoff safety device of the present invention is placed between the impact valve and the filter so that in one position the device blocks access to the end of the filter and in another position provides filter access while at the same time tripping the latch arm to close the impact valve.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: April 7, 1992
    Assignee: Dresser Industries, Inc.
    Inventor: John A. Todd
  • Patent number: 5037062
    Abstract: 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 lateral impact to the ball, thereby lifting the ball off the valve seat. Setting the ball back onto the valve seat is effected under the influence of the gas flow passing through the valve opening. The valve has extremely short switching times and allows for a high repetition frequency.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: August 6, 1991
    Assignee: Deutsche Forschungsanstalt fur Luft- und Raumfahrt e.V
    Inventor: Dietmar Neuhaus
  • Patent number: 4705070
    Abstract: 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 normally-closed sealing engagement are substantially altered by repositioning the magnetic elements in response to the controlling magnet flux. Complete sealing or isolation against back flow through the valve under conditions of net positive outlet pressure is inhibited by the internal double-acting sealing elements which respond in unified manner to the controlling magnetic flux. Sealing surfaces on the elements are dome shaped to limit the effect of horizontal forces imposed thereon. The elements are biased into floating relation and reduced in dimension to inhibit contact with sidewalls of the valve body.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: November 10, 1987
    Inventor: Paul G. Eidsmore
  • Patent number: 4694860
    Abstract: 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 elements into normally-closed sealing engagement are substantially altered by repositioning the magnetic elements in response to the controlling magnet flux. Complete sealing or isolation against back flow through the valve under conditions of net positive outlet pressure is inhibited by the internal double-acting sealing elements which respond in unified manner to the controlling magnetic flux.
    Type: Grant
    Filed: February 4, 1986
    Date of Patent: September 22, 1987
    Inventor: Paul G. Eidsmore
  • Patent number: 4637425
    Abstract: 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 pieces to move away from the seats. The flap of the valve has a lever extending therefrom, and a spring actuated rod retained by a catch is released to strike against the lever for forcing the flap against the knife-edge. The catch may be released manually, but is preferably released by slightly delayed operation of a solenoid in response to operation of a level sensing device in the housing of the valve.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: January 20, 1987
    Inventor: Robert E. Petersen
  • Patent number: 4619284
    Abstract: 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 shears a tight end fitting, thus freeing the fluid passage. The membrane ensures a perfect seal between the fluid circulation zone and the zone containing the gases produced by the pyrotechnic devices.
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: October 28, 1986
    Assignee: Societe Nationale Industrielle Aerospatiale
    Inventors: Jean-Jacques Delarue, Claude Ego
  • Patent number: 4592533
    Abstract: 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 movable core (28) but, upon the coil's being excited, remains thrust into the orifice (16) during a first opening stage while the movable core only (28) is caused to rise. Subsequently--once the movable core (28) arrives within a few millimeters of the fixed core--a shoulder (51) offered by the movable core to a shoulder (18) incorporated in the obturator (17) duly makes contact and draws the latter upward, whereupon the action of a spring (27) overcomes such resistance as is offered by a further spring (19) and the obturator itself (17) is raised to a generous distance from its seat in orifice (16) aforesaid.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: June 3, 1986
    Assignee: Edi System s.r.l.
    Inventors: Mauro Guglielmi, Antonio Pighetti, Savino Vezzani, Sergio Acerbi
  • Patent number: 4558715
    Abstract: 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 responsive to movement of the piston assembly to open and close to effect the transfer of a primary fluid charge from the pump motor to a discharge passage and to effect reciprocation of the piston assembly. The motor piston is connected to a central axially disposed longitudinally extending piston rod which extends into an additive injection pump cylinder and engages a floating additive injection pump piston having a stack of additive pump displacement control washers engaged therewith and disposed on the piston rod. A spring biased toggle type linkage snaps the motor valves into open and closed positions to provide positive movement of the valve members.
    Type: Grant
    Filed: May 16, 1984
    Date of Patent: December 17, 1985
    Assignee: Kowatachi International, Ltd.
    Inventors: Frank A. Walton, Paul M. Perrinet
  • Patent number: 4445532
    Abstract: 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 designed for stable flow under transonic conditions, and an improved solenoid valve assembly for switching the reduction regulator to an operational condition.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: May 1, 1984
    Assignee: The Garrett Corporation
    Inventor: John D. Mitchell
  • Patent number: 4429704
    Abstract: 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 lost motion connection with the valve stem or other element to be turned in order to enable initial movement of the member by the spring to develop momentum before applying force to the stem, a latch element releasably retaining the member against spring induced movement, and inertia actuated weight means responsive to shock forces to release the latch element and permit movement of the member to turn the valve stem.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: February 7, 1984
    Inventor: Mitchel R. Jones
  • Patent number: 4304258
    Abstract: 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 energy with armature stroke energy during a latter stage of armature stroke to open the valve member.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: December 8, 1981
    Assignee: The Garrett Corporation
    Inventor: John D. Mitchell
  • Patent number: 4296913
    Abstract: 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, facilitating opening of the valve. The initial movement may be imparted by an asymmetrical configuration in the actuator or ball or means of a spring interposed between the two.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: October 27, 1981
    Inventor: Ernst H. J. Hoyer
  • Patent number: 4055500
    Abstract: 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 the outlet end of the flow passage so that by closing the outlet valve and opening the inlet valve clean filtered fluid may be forced into the reservoir in a manner to compress the entrapped air and provide a supply of pressurized clean filtered fluid for use in a backwashing reverse flow operation through the filtering flow passage, during which the inlet and outlet valves are both closed.The backwash flow is controlled by a unique quick-opening backwash poppet valve which is so connected with the flow passage that the fluid pressure of the backwashing fluid will act to normally urge the backwash valve to a closed position which prevents the reverse flow until the backwash poppet valve is opened.
    Type: Grant
    Filed: February 10, 1976
    Date of Patent: October 25, 1977
    Inventor: Leland L. Parker
  • Patent number: 3974998
    Abstract: 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 which is engageable with an enlarged head portion of the pilot member of the valve. When the pilot is in its seated position, the dimensions of the valve are such that the armature must travel a short distance before its shoulder will impact against the pilot head thus allowing kinetic energy to build up as the armature travel is initiated by coil energization which enables the armature to effectively snap open the pilot upon impact despite spring and high fluid pressure resistance.
    Type: Grant
    Filed: July 9, 1974
    Date of Patent: August 17, 1976
    Assignee: Crown Cork & Seal Company, Inc.
    Inventor: Lee A. Wood
  • Patent number: 3949964
    Abstract: 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 electrically-energizable coil, repelling an anvil, for example, secured to said valve-stem piston-assembly.Upon reduced voltage, the actuating coil has less energy, and is only able to effect opening movement of the valve-stem piston-assembly, which, upon its opening motion, opens, by valve action, an additional piston-surface area for a high-pressure region fed by a bypassing high-pressure gas-inlet port.
    Type: Grant
    Filed: February 13, 1975
    Date of Patent: April 13, 1976
    Assignee: Westinghouse Electric Corporation
    Inventor: Willie B. Freeman
  • Patent number: 3934601
    Abstract: 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.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: January 27, 1976
    Assignee: Atlas Copco Aktiebolag
    Inventor: Erik Volmar Lavon
  • Patent number: RE31233
    Abstract: The invention disclosed embraces a charge forming method of and apparatus embodying an instrumentality responsive to engine vibrations or disturbances brought into operation when the engine reaches a predetermined speed to automatically deliver excess fuel to the engine thereby momentarily providing a nonignitible mixture preventing overspeeding of the engine.
    Type: Grant
    Filed: October 19, 1979
    Date of Patent: May 10, 1983
    Assignee: Borg-Warner Corporation
    Inventors: Warren D. Nutten, Bernard C. Phillips