Spring Patents (Class 251/83)
  • Patent number: 9915440
    Abstract: This device (D) for regulating the air flow in a pipe includes a flap (6) delimiting, relative to an inner surface (104) of a pipe (10) of the device (D), an air passage section (S), and an adjusting calibrating element (8) movable between a first position and a second position. The device includes a sealing wall (12), extending between the calibrating element and an inner surface (106) of the duct (10), suitable for preventing the passage of air from the side of the duct (10) opposite the air passage section (S). The sealing wall (12) is rotatable relative to the pipe (10) under the action of the movement of the calibrating element, and the calibrating element includes a front wall (86) perpendicular to the longitudinal axis (X-X?) of the duct (10) which, in the first position of the calibrating element, does not protrude past the circumference of the duct.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: March 13, 2018
    Assignee: ANJOS VENTILATION
    Inventors: Laurent Barbarin, Christian Barbarin
  • Patent number: 9499146
    Abstract: Provided is a hydraulic braking device wherein the heat of a driving coil can be absorbed by a base body, and the heat radiation performance is excellent. The hydraulic braking device having a base body that includes therein a fluid passage for brake fluid, includes: a solenoid valve disposed on one surface of the base body; and a driving coil attached around an axis of the solenoid valve, wherein the one surface of the base body is provided with a wall surface facing an outer circumferential surface of the driving coil. A lower surface of the driving coil is in contact with the one surface of the base body, and a clearance is formed between the outer circumferential surface of the driving coil and the wall surface.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: November 22, 2016
    Assignees: Autoliv Nissin Brake Systems Japan Co., Ltd., Honda Motor Co., Ltd.
    Inventors: Yoshiteru Matsunaga, Motoyasu Nakamura, Kazuaki Murayama
  • Patent number: 9316297
    Abstract: The screw motion mechanism includes: a threaded shaft having an outer peripheral surface provided with a helical thread groove, the threaded shaft having at least one axial end coupled to a first structural body; a nut member held in a rotatable manner with respect to a second structural body which is movable in an axial direction of the threaded shaft with respect to the first structural body, the nut member being threadedly engaged with the threaded shaft; and a spherical joint for coupling the at least one axial end of the threaded shaft to the first structural body, the spherical joint including: a spherical portion; and a sphere receiving portion for housing the spherical portion. When assuming an axial force applied to the threaded shaft as a variable, a line of a rotational torque intersects with a line of a sliding torque in a graph.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: April 19, 2016
    Assignees: THK CO., LTD., ASEISMIC DEVICES CO., LTD.
    Inventors: Yoshihito Watanabe, Hidenori Kida, Shigeki Nakaminami, Hisaya Tanaka
  • Patent number: 9022345
    Abstract: A valve provided for the blocking or controlled establishment of a volume flow of a working fluid in a flow path of a technical device that transmits and/or stores energy, in particular in a control device for a hydraulic drive, an associated method of manufacture of the valve, and an apparatus with the valve. The valve includes first, second, and third valve openings, a moveable shut-off body moveable between an open-position and a close-position, a guide which guides the shut-off body between the open-position and the close position, and a retainer which exerts a retaining force on the shut-off body in the close-position. The guide has three guide parts. The first and third guide parts enclose the shut-off body and the second guide part includes a plurality of pins in a parallel orientation to the direction of movement of the shut-off body.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: May 5, 2015
    Inventors: Roland Bisig, Esad Ibrisimbegovic
  • Patent number: 8998167
    Abstract: A solenoid valve has a valve seat, a valve element, and a tappet which is shiftably mounted within the solenoid valve and can urge the valve element against the valve seat in which a line perpendicular to a plane defined by the valve seat can be oriented at an angle that is non-zero in relation to the direction of movement of the tappet, the valve seat being oriented obliquely to a center axis defined by a magnetic coil.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: April 7, 2015
    Assignee: Buerkert Werke GmbH
    Inventor: Albert Leidig
  • Patent number: 8858164
    Abstract: An air discharge system for an aviation turbomachine compressor is disclosed. The discharge system includes at least one discharge valve. Each valve includes a valve body suitable for moving between an open position and a closed position of the discharge valve, a camshaft including a cylindrical rod carrying a cam mounted to bear against the valve body in such a manner that rotating the camshaft causes the valve body to move between its open and closed positions, and a device for keeping the cam bearing permanently against the valve body. The discharge system further includes at least one main electric motor having its rotor suitable for driving the camshaft of each discharge valve in rotation, and an electronic control system for controlling each main electric motor.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: October 14, 2014
    Assignee: SNECMA
    Inventors: Baptiste Colotte, Bruno Gaully
  • Patent number: 8807519
    Abstract: A valve, in particular, a proportional pressure relief valve, includes an electrically controlled solenoid system (10) for the control of an operating part (12, 12a). The operating part cooperates with a valve element (26) extending longitudinally inside a valve housing (24) to release a fluid transport connection path between a fluid inlet (32) and a fluid outlet (34) in its open position and to block the through path in its closed position. An energy store, preferably in the form of a compression spring (58), is arranged between the operating part (12, 12a) and valve element (26) in a free gap between the two and tends to hold the valve element (26) in the direction of its closed position. The operating piece (12a) is embodied as a guide piston having a longitudinal guide for the valve element (26).
    Type: Grant
    Filed: April 1, 2006
    Date of Patent: August 19, 2014
    Assignee: Hydac Fluidtechnik GmbH
    Inventors: Peter Bruck, Markus Bill
  • Patent number: 8726934
    Abstract: A multi-mode pressure relief valve includes a body having fluid inlet and outlet ports and a compressed gas inlet port. The fluid ports and gas port isolated from one another. A reciprocating piston is in communication with the gas port. A valve stem is movable between an open condition and a closed position to permit and stop flow communication between the fluid ports. A spring is disposed between the valve stem and the piston and urges the piston and valve stem away from one another.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: May 20, 2014
    Assignee: Illinois Tool Works Inc.
    Inventor: Edward W. Bolyard, Jr.
  • Patent number: 8667982
    Abstract: An air valve device is adapted to be fitted into an opening of an inflatable article, and includes a valve seat having a seat body that is disposed between an inflating port and a conduit, and a valve disc unit disposed in the conduit to be moved between opened and closed positions, and having a valve disc connected with a plunger, an elastomeric seal ring superimposed on a padded region of the valve disc. A rigid retaining cap is disposed to bring a base layer of the seal ring in an abutting engagement with the padded region of the valve disc so as to secure the seal ring to the valve disc while permitting a sealing marginal layer of the seal ring to be air-tightly engaged with the seat body in the closed position.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: March 11, 2014
    Inventors: Rong-Jyh Song, Tsung-Ping Yen
  • Patent number: 8662110
    Abstract: In accordance with the present invention, there is provided a bi-directional shut-off trim for a valve which possesses the functional attributes of a pilot operated trim and a balanced trim through the integration of a spring loaded check valve into a pilot trim. In forward flow isolation, the bi-directional shut-off trim of the present invention acts as a normal pilot operated trim. In reverse flow, the check valve of the shut-off trim opens to balance the pressure on either side of the plug thereof.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: March 4, 2014
    Assignee: Control Components, Inc.
    Inventor: Sina Alikhani
  • Patent number: 8651456
    Abstract: The present invention provides an electronic expansion valve, comprising a leading screw, a valve needle and a valve needle sleeve. It further comprises: a washer provided in an annular groove, which is provided at the lower end of the leading screw in the circumferential direction, and a thickness of the washer is less than a width of the annular groove; the valve needle sleeve abuts against the upper surface of the washer and is fixedly connected with the valve needle; and a spring is provided between the washer and the valve needle.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: February 18, 2014
    Assignee: Zhejiang Sanhua Co., Ltd.
    Inventors: Caiyi Zhan, Ze Yuan, Xianrang Wei
  • Patent number: 8636262
    Abstract: Coupling apparatus for use with electric actuators are described herein. An example coupling apparatus described herein includes a coupling assembly to operatively couple a fluid flow control member of a fluid valve and a drive system of the electric actuator. Rotation of the drive system in a first rotational direction causes the coupling assembly to move in a first rectilinear direction and rotation of the drive system in a second rotational direction causes the coupling assembly to move in a second rectilinear direction opposite the first direction. The coupling assembly includes a biasing element that is to be deflected to provide a seat load to the fluid flow control member when the fluid flow control member is in sealing engagement with a valve seat of the fluid valve and electric power to the electric actuator is removed.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: January 28, 2014
    Assignee: Fisher Controls International, LLC
    Inventors: Ross Arthur Schade, Thomas Pesek, Galen Wilke
  • Patent number: 8499852
    Abstract: Used in a pneumatic tool, a switch includes a valve seat set in an air intake passage and movable into contact with or away from a gas control member and defining an air hole, and a valve rod inserted through the air hole of the valve seat. When the positioning portion of the valve rod is stopped against the valve seat and the valve seat is stopped against the gas control member, the air intake passage is blocked. When the valve rod is biased relative to the valve seat, the positioning portion is moved away from the air hole of the valve seat for allowing a compressed gas to pass through the air hole, and when the valve rod is biased further to carry the valve seat away from the gas control member, the compressed gas is allowed to pass between the valve seat and the gas control member.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: August 6, 2013
    Assignee: Tranmax Machinery Co., Ltd.
    Inventor: Hsin-Chi Chen
  • Patent number: 8496005
    Abstract: The auxiliary breathing flow channel apparatus for an oxygen mask for pilots and crew of an airplane includes a flow control device with closed and open positions to regulate flow through an auxiliary channel. A pressure sensor such as an aneroid capsule automatically closes the auxiliary channel upon a decrease in cabin pressure. A handle also allows a user to manually move the flow regulating means to a closed position.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: July 30, 2013
    Assignee: BE Aerospace, Inc.
    Inventors: Thomas K. McDonald, Mark A. Oswald, James C. Cannon, Bryan N. Rogers, Raymond P. Feith
  • Patent number: 8465000
    Abstract: An electric motor actuated stop/check valve for industrial use such as liquid pumping systems which has a controlled opening and closing rate when liquid flow is in a forward direction but closes quickly upon reverse flow of liquid with no action from the electric motor actuator. Actuation of the valve is by an electric motor which provides movement to an actuator rod which contacts the disc stem. The disc stem and the actuator rod are not connected which allows the valve disc and disc stem free movement. No action by the electric motor is required. A spring biasing the valve disc toward the closed position and a hydraulically operated valve closing-speed regulator reduces or eliminates slamming of the valve disc against the valve seat. In a preferred method of operation liquid surge pressure transients are reduced or eliminated and slamming of valve components is prevented.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: June 18, 2013
    Assignee: GA Industries, LLC
    Inventors: Donald L. Bartell, Jr., Joseph E. Lescovich, William J. Nicholl
  • Patent number: 8408518
    Abstract: Electric actuators having internal load apparatus are described herein. An example electric actuator having an internal load apparatus described herein includes a housing defining a cavity to receive a drive system and a drive shaft operatively coupled to the drive system. Rotation of the drive system in a first rotational direction causes the drive shaft to move in a first rectilinear direction and rotation of the drive system in a second rotational direction causes the drive shaft to move in a second rectilinear direction opposite the first rectilinear direction. A biasing element is operatively coupled to the drive system such that least a portion of the drive system moves axially toward the biasing element to deflect the biasing element when the drive shaft reaches an end of stroke position to provide a load to the drive shaft when electric power to the electric actuator is removed.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: April 2, 2013
    Assignee: Fisher Controls International, LLC
    Inventors: Ross Arthur Schade, Thomas Pesek, John Stanley Bandas
  • Patent number: 8371554
    Abstract: Stem-actuated two-way valve for precise, intermittent and repeatable delivery of fluid and/or gaseous substances from high pressure sources. A dual purpose o-ring functions as a valve seat and separates high pressure segments from low pressure segments. The novel valve stem system allows precise delivery of desired liquids and/or gases regardless of valve stem travel within a defined travel length.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: February 12, 2013
    Assignee: Beswick Engineering, Inc.
    Inventors: Gary A. Treadwell, Dale D. Ames, Margaret E. Tomaswick, Siang Kiang Chan Beswick
  • Patent number: 8281806
    Abstract: A nipple of a check has a first portion that is selectively positionable within a housing of the check valve. A second portion of the nipple extends from the housing when the first portion of the nipple is selectively positioned within the housing. The check valve is configured to allow fluid flow through the check valve in either a first direction or a second direction when the first portion of the nipple is selectively positioned within the housing. The check valve is configured to prevent fluid flow through the check valve in the first direction when the first portion of the nipple is removed from the housing.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: October 9, 2012
    Assignee: Seppmann Enterprises, LLC
    Inventor: Corey J Seppmann
  • Patent number: 8196894
    Abstract: In accordance with different embodiments of the present invention, duckbill check valve 10, having an orifice 11, and conical check valve 12, having an orifice 13, are responsive to the differential pressure of fluid F as it flows between inlet 14 and outlet 16. In an innovative aspect of the invention, orifice 11 and orifice 13 each have a variable effective diameter. In one embodiment, the duckbill check valve 10 and conical check valve 12 have a conical end that is aligned with the direction of fluid flow. In another embodiment, the duckbill check valve 10 can have a conical end that faces the direction of fluid flow. A pin may traverse orifice 11 or 13.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: June 12, 2012
    Assignee: Societe BIC
    Inventors: Paul P. Spahr, Andrew J. Curello
  • Patent number: 8171954
    Abstract: A pressure-relief valve assembly is improved in that sealing surfaces on both the valve seat and valve head are confrontationally disposed annular planar surfaces oriented substantially perpendicular to the valve axis. A resilient valve seal is formed of a material which deforms to a predetermined extent into sealing engagement against both sealing surfaces when compressed by the spring biasing force. When a vacuum exists the combination of the spring force and a holding force created by a pressure differential acts to increase the extent of compression between the resilient valve seal and both sealing surfaces sufficient to create a vacuum-tight seal. The magnitude of the spring biasing force in discrete increments may be adjusted by varying the degree of threaded engagement between members forming the valve housing.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: May 8, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Daniel A. Hancock, William L. Holstein, Jeffrey L. Fleischut
  • Patent number: 8128058
    Abstract: A flow control device in which a flapper is continuously biased to the closed position by a leaf spring that may have a plurality of fingers. The same valve includes a shutoff mechanism allowing the user to adjust forward flow through the valve or shut it off entirely. The leaf spring is made to include polyoxymethylene.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: March 6, 2012
    Assignee: National Diversified Sales, Inc.
    Inventors: Gregory F. Quinn, Robert G. Morris
  • Patent number: 8047502
    Abstract: To overcome problems concerning the sticking of the check plate in a combined check and control valve, a stop is provided on the valve rod or a guide element in the vicinity of the valve rod, whose distance to the limiting element is smaller than the maximum stroke and larger than the nominal stroke of the limiting element. Thus, it is achieved that the check plate is released from the valve seat by means of the stop, when the valve rod is displaced to the maximum.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: November 1, 2011
    Assignee: Pierburg GmbH
    Inventor: Holger Paffrath
  • Patent number: 8042788
    Abstract: A thin disk portion, which extends radially, and a rib provided in an outer circumference part of the disk portion are formed in a valve body. A ring-like seal projection to be pressure-contacted with the disk portion to seal a valve is formed in a case. Because the disk portion is thin, deformation occurs along an end surface of a seal projection when the valve is sealed. Even when the seal projection is deformed due to fuel swelling or the like, sealing is enabled along the entire circumference thereof. High sealability is achieved even when the resin components are pressure-contacted with each other.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: October 25, 2011
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Yoshitaka Kobayashi, Kenichiro Kaneko
  • Patent number: 7836886
    Abstract: The auxiliary breathing flow channel apparatus for an oxygen mask for pilots and crew of an airplane includes a flow control device with closed and open positions to regulate flow through an auxiliary channel. A pressure sensor such as an aneroid capsule automatically closes the auxiliary channel upon a decrease in cabin pressure. A handle also allows a user to manually move the flow regulating means to a closed position.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: November 23, 2010
    Assignee: B/E Intellectual Property
    Inventors: Thomas K. McDonald, Mark A. Oswald, James C. Cannon, Bryan N. Rogers, Raymond P. Feith
  • Patent number: 7789373
    Abstract: The invention relates to a ball poppet valve having a valve body, a cylindrical valve bore disposed in the valve body, a ball poppet for closing the valve bore and a movable control stem intruding into the valve bore. The control stem acts on the ball poppet, and the control stem has a diameter (d) that at least approximately becomes larger and larger in the direction towards the ball poppet.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: September 7, 2010
    Assignee: Kendrion Binder Magnete GmbH
    Inventors: Florian Schulz, Gerd Strobel
  • Patent number: 7775503
    Abstract: An oil pressure relief valve for use in the lubrication system of an internal combustion engine is controlled by both pump outlet pressure 3 and pilot pressure 2. The action of the valve reduces the start-up pressure spikes associated with known pilot-operated valves, while also permitting a fuel economy benefit.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: August 17, 2010
    Assignee: Ford Global Technologies, LLC
    Inventor: Quanbao Zhou
  • Patent number: 7628152
    Abstract: A breathing regulator having a non-linear positive pressure spring is provided for use in an air supplied respirator. The regulator includes a housing formed from a regulator body and a cover sub-assembly, a diaphragm assembly, and the non-linear spring. The spring holds the diaphragm assembly closed and resists the force applied by air pressure during exhalation by the user, but collapses once a sufficient amount of force has been applied, thereby permitting the user to exhale freely.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: December 8, 2009
    Assignee: STI Licensing Corp.
    Inventors: Jason M. Patterson, Samuel C. Shomstein
  • Patent number: 7624751
    Abstract: An air nozzle for an automatically inflatable air cushion includes a mounting seat, a connecting pipe having a first end mounted on the mounting seat and a second end formed with a passage connected to the mounting seat, a control valve including a valve body movably mounted on the connecting pipe and a valve cap mounted on the valve body and provided with a protruding seal portion that is movable to seal the passage, and an elastic member to push the seal portion outwardly relative to the passage. Thus, the air nozzle can be locked quickly and exactly to interrupt the air flow to prevent the air flow from being returned into the automatically inflatable air cushion.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: December 1, 2009
    Assignee: Feng Yi Outdoor Leisure Equipment Enterprise Co., Ltd.
    Inventor: Ping-Ting Lin
  • Patent number: 7594639
    Abstract: A cylinder valve includes: a single valve member in the form of a spring loaded shuttle, the spring exerting a pressure on the shuttle in a valve-closing direction; a valve seat against which the valve member bears in its valve-closing position; a guide defining a channel in which the shuttle is able to travel; a stop member able to be translated in the channel into and out of a position in which the stop member holds the valve member in its valve-closing position; and a valve body which is engaged by the guide, the guide being able to be translated into a position in which the shuttle cannot be brought to bear against the valve seat.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: September 29, 2009
    Assignee: The BOC Group plc
    Inventor: David William Birch
  • Patent number: 7469713
    Abstract: A check valve for an inflatable device comprising a poppet urged by a conical spring to annularly seal uniformly around its entire periphery to assure more uniform cracking pressure about its entire periphery. In one embodiment the check valve comprises a locking key to lock the valve closed irrespective of the cracking pressure that may otherwise may have cracked the valve open. In another embodiment, the check valve comprises a manual dump feature that allows rapid dumping of air from the inflatable irrespective of low cracking pressure that may exist in the inflatable.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: December 30, 2008
    Assignee: Halkey-Roberts Corporation
    Inventor: Glenn H. Mackal
  • Patent number: 7410145
    Abstract: A valve to be mounted on a dunnage bag having one collar mounted on the bag, a seal plate positionable adjacent to an interior end of the collar and a stem slideably mounted in the collar to position the seal plate in one position where air is prevented from passing through the collar and in another position where the seal plate may be locked permitting air to escape from the bag.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: August 12, 2008
    Inventors: Olaf Elze, Helmut Elze, Mark Caires
  • Patent number: 7347405
    Abstract: An inlet valve is provided for a pneumatic tool. The pneumatic tool defines a space and a passageway communicated with the space. The inlet valve includes a housing and a plunger. The housing is movable in the space between a first position where it blocks the space from the passageway and a second position where it allows the communication between the space and the passageway. The housing defines an inlet and an outlet. The plunger is inserted through the outlet and movable in the pneumatic tool between a first position, a second position and a third position. An end of the plunger is put in the housing for pushing the housing, from inside, to the second position as the plunger is in the third position. The plunger includes an annular flange put in the housing for blocking the outlet as the plunger is in the first position and for opening the outlet as the plunger is in the second position.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: March 25, 2008
    Assignee: Mighty Seven International Co., Ltd.
    Inventor: Chi-Shen Liao
  • Patent number: 7290561
    Abstract: A valve for causing pulsatile flow in a multi-piston plunger pump includes a valve poppet, a valve seat, and a spring biasing the valve poppet against the valve seat; and a mechanism holding the valve poppet in an open position, thereby producing pulsatile flow from the pump. The mechanism includes a magnet and an adjustment mechanism for moving the magnet toward and away from the valve poppet. When the magnet is moved toward the valve poppet, the magnet attracts the poppet away from the valve seat, and when the magnet is moved away from the valve poppet, the magnet releases the poppet. The spring then biases the poppet against the valve seat in a closed position.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: November 6, 2007
    Assignee: Diversified Dynamics Corporation
    Inventor: Steve A. Larson
  • Patent number: 7278443
    Abstract: A valve for causing pulsatile flow in a multi-piston plunger pump includes a valve poppet, a valve seat, and a spring biasing the valve poppet against the valve seat; and a mechanism holding the valve poppet in an open position, thereby producing pulsatile flow from the pump. The mechanism includes a magnet and an adjustment mechanism for moving the magnet toward and away from the valve poppet. When the magnet is moved toward the valve poppet, the magnet attracts the poppet away from the valve seat, and when the magnet is moved away from the valve poppet, the magnet releases the poppet. The spring then biases the poppet against the valve seat in a closed position.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: October 9, 2007
    Assignee: Diversified Dynamics Corporation
    Inventor: Steve A. Larson
  • Patent number: 7249748
    Abstract: An electric motor actuated stop/check valve for industrial use such as liquid pumping systems which has a controlled opening and closing rate when liquid flow is in a forward direction but closes quickly upon reverse flow of liquid with no action from the electric motor actuator.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: July 31, 2007
    Assignee: GA Industries, Inc.
    Inventors: Donald L. Bartell, Jr., Joseph E. Lescovich, William J. Nicholl
  • Patent number: 7219850
    Abstract: A water spray nozzle assembly includes an internal channel that is sealable by an internal valve having a seat and a disc. A tilting member is operable to tilt the disc at least partially off of the seat, allowing water to flow through the internal channel. The disc may be further tilted completely off of the seat to provide additional water flow through the water spray nozzle.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: May 22, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Douglas Burnworth, Douglas Shaulis, Timothy DeVore, Thomas C. Oyler
  • Patent number: 7134638
    Abstract: A stop valve for a gas tank is provided which achieves favorable sealing performance by inhibiting rotation of a sealing member attached to a valve element. A passage is formed inside a valve body, and a valve seat is provided in the passage. The valve element which is engaged and disengaged from the valve seat is slidably inserted to a sliding hole bored in the valve body. The annular sealing member is arranged in sliding contact with the outer peripheral surface of the valve element and the inner peripheral surface of the sliding hole. A screw hole connecting to the sliding hole and coaxial thereto is provided in the valve body. A rotating operation member having a male screw is rotatably screwed into the screw hole from the outside of the valve body. One end of the rotating operation member is made to abut the valve body.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: November 14, 2006
    Assignees: Toyooki Kogyo Co., Ltd., Toyoda Koki Kabushiki Kaisha
    Inventors: Tadayoshi Kamiya, Soichi Shirai, Nobuyuki Shirai, Toshihiko Shima, Hiroaki Suzuki, Yoshiyuki Takeuchi
  • Patent number: 7128089
    Abstract: An electro-mechanical variable fluid flow restrictor includes a support having a passage and a seal surface, a deformable seal that is engageable with the seal surface, and a bias member for exerting an electronically controlled variable bias against the deformable seal. The seal surface includes channels formed in its surface that extend beneath the deformable seal. The bias member can exert a bias sufficient to cause the deformable seal to fill the channels, preventing fluid flow through the channels. When the bias member decreases the bias against the deformable seal, the deformable seal gradually moves out of the channels, allowing fluid flow through the channels, and through the passage in a flow control. The deformable seal does not need to separate from the seal surface to allow fluid flow. Instead, fluid flows through the small, controlled flow areas created when the deformable seal withdraws from the channels.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: October 31, 2006
    Assignee: Agilent Technologies, Inc.
    Inventors: H. Bryan Bente, Robert Clark Henderson
  • Patent number: 7121299
    Abstract: The valve includes an intake duct (13) for conveying water into the valve, an externally projecting tubular body (20) of a transparent with an internal cavity (21) and a flow indicator rod (40), slidable inside the valve, with a lower portion in the intake duct (13) and an upper indicator portion in the internal cavity (21) of the transparent body (20). The upper, indicator portion has a first upper area (46) able to indicate no water is flowing and a second, lower area (47) able to indicate that water is flowing through the intake duct (13).
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: October 17, 2006
    Assignee: Onda Engineering System S.r.l.
    Inventor: Carlo Lumello
  • Patent number: 7040339
    Abstract: A suction inlet valve for fire truck pumpers has a male body portion and a female body portion, the portions defining a chamber therein. A cone-shaped valve element is connected to a valve stem which has a cam body thereon with a cam slot therein. The cam slot receives a projection from an operating shaft which projects out of the housing. The operating shaft has an operating handle thereon which is exposed to the environment and conducts heat from the chamber. If there is water in the chamber, there is an increased chance of water in the cam slot freezing disabling operation of the valve. To drain water away from the cam slot, a drain is provided in the male body portion for draining water from the chamber.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: May 9, 2006
    Assignee: Hydra-Shield Manufacturing, Inc.
    Inventor: Roy Istre, Jr.
  • Patent number: 6929238
    Abstract: An electric motor actuated stop/check valve for industrial use such as liquid pumping systems which has a controlled opening and closing rate when liquid flow is in a forward direction but closes quickly upon reverse flow of liquid with no action from the electric motor actuator. A valve disc having an elongated disc stem contacts a valve seat when in a closed position to stop liquid flow. Actuation of the valve is by an electric motor which provides movement to an actuator rod which contacts the disc stem. The disc stem and the actuator rod are not connected which allows the valve disc and disc stem free movement, by action of the momentarily back-flowing liquid, to a back-flow preventing closed position when liquid forward flow is reversed. No action by the electric motor is required. A spring biasing the valve disc toward the closed position and a hydraulically operated valve closing-speed regulator reduces or eliminates slamming of the valve disc against the valve seat.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: August 16, 2005
    Assignee: GA Industries Inc.
    Inventors: Donald L. Bartell, Jr., Joseph E. Lescovich, William J. Nicholl
  • Patent number: 6899312
    Abstract: A pressure relief valve for flowing media has a closing element (6), whose closing force can be set with both the setting of the closing force and the brief release of the closing element (6) performed with a single setting element. Teeth (22, 23) are provided, by which the threaded sleeve (3) can be actuated such that it can perform a rotary movement and a lifting movement can be performed between the handwheel (2) and the threaded sleeve (3). The teeth are provided between a pin (21) of the handwheel (2) for setting the closing force and a threaded sleeve (3). The closing element (6) is connected to the handwheel (2) such that the closing element (6) follows the lifting movement of the handwheel (2).
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: May 31, 2005
    Assignee: Dräger Medical AG & Co. KGaA
    Inventors: Ahmet Türker, Matthias Witt
  • Patent number: 6883776
    Abstract: A slit valve for a semiconductor processing apparatus, for fluidly sealing a passage connecting two chambers of the apparatus, such as a substrate reaction chamber and a region outside the reaction chamber. The slit valve comprises an actuator plate movable within a slot in one wall of the passage, the actuator plate and the slot oriented generally transverse to the passage. The actuator plate has a first position in which the valve is open, permitting the transfer of a substrate through the passage. The actuator plate also has a second position in which the valve is closed, and in which the actuator plate fluidly seals the passage such that fluid cannot flow through the passage across the actuator plate. A protective cover is configured to prevent debris within the passage (e.g., broken wafers, shards, particulate contaminants, etc.) from flowing into the slot when the actuator plate occupies its second position.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: April 26, 2005
    Assignee: ASM America, Inc.
    Inventors: Ravinder Aggarwal, Jim Kusbel, Jerry Davis
  • Patent number: 6871835
    Abstract: A valve includes a housing having a fluid inlet and a fluid outlet and defining a fluid flow path between the inlet and the outlet. A check valve positioned in the housing has a valve seat in the flow path from the inlet, a valve member movable between a seated position against the valve seat blocking fluid flow from the inlet past the valve seat and an unseated position spaced away from the valve seat, and a spring for biasing the valve member toward the seated position. A main valve assembly is removably positioned at a home position in the housing in the flow path to control the fluid flow from the check valve to the outlet. The valve assembly has a portion which engages the valve member and maintains the valve member in it's unseated position so long as the main valve assembly is at the home position, the valve member being moved to the unseated position by the spring upon removal of the main valve assembly from the housing.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: March 29, 2005
    Assignee: Arichell Technologies, Inc.
    Inventor: Natan F. Parsons
  • Patent number: 6725661
    Abstract: Valve device for evacuation of a gaseous medium under overpressure from a space (3) includes a valve housing (1a) with an opening (2) to the space (3); a valve disc (6) cooperating with a valve spindle (8), sealing the opening in the closed position of the valve and, disposed in a cylinder (12), a control plunger (13) which, via a spring, biases the spindle and thus the valve disc towards the closed position. When pressure medium with a predetermined control pressure is supplied, the plunger is lifted from the valve spindle, whereupon the force from a balancing spring (11) and the medium pressure in the space (3) act in the valve opening direction, while the force of the control pressure acting on the spindle (8) loads the valve disc in the closing direction.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: April 27, 2004
    Assignee: Volvo Lastvagnar AB
    Inventor: Nils Olof Hakansson
  • Publication number: 20040046136
    Abstract: A pressure relief valve for flowing media has a closing element (6), whose closing force can be set with both the setting of the closing force and the brief release of the closing element (6) performed with a single setting element. Teeth (22, 23) are provided, by which the threaded sleeve (3) can be actuated such that it can perform a rotary movement and a lifting movement can be performed between the handwheel (2) and the threaded sleeve (3). The teeth are provided between a pin (21) of the handwheel (2) for setting the closing force and a threaded sleeve (3). The closing element (6) is connected to the handwheel (2) such that the closing element (6) follows the lifting movement of the handwheel (2).
    Type: Application
    Filed: July 28, 2003
    Publication date: March 11, 2004
    Inventors: Ahmet Turker, Matthias Witt
  • Patent number: 6622749
    Abstract: An improved air faucet allows an air mattress to be squeezed and deflated without sucking air during air discharging process. The air faucet includes an air duct coupled to a base seat. The air duct has an external screw section formed on a middle section to engage with an internal screw section of a valve cap. The air duct has an air inlet. The valve cap has air apertures formed on a top end and a jutting strut extending downwards in the center. The jutting strut has an indented recess formed at the bottom end and an opening in the center for holding a control valve. The control valve couples with a spring and has a bottom end fastened to a valve cock. The valve cap and air duct may be engaged in various manners to control the communication or sealing between the air apertures of the valve cap and air inlet of the air duct.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: September 23, 2003
    Assignee: Feng Yi Outdoor Leisure Equipment Enterprise Co., Ltd.
    Inventor: Hsin Yeh Li
  • Patent number: 6619325
    Abstract: A hydraulic accumulator is equipped with a novel shut-off valve. The shut off-valve includes a valve body having a cylindrical hollow with a valve seat surrounding one end. The main piston including a piston head has a central opening and is slidably mounted within the cylindrical hollow of the valve body. A poppet valve has a valve head which mates with the valve seat and a valve stem which extends through the central opening of the piston to guide axial movement of the poppet valve relative to the piston. A spring is mounted between the valve head and the main piston head for urging the valve head away from the piston head. A control valve moves the piston relative to the valve body between open and closed positions responsive to signals from a computer which signals valve closing upon determination that flow rate through the valve exceeds a maximum period.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: September 16, 2003
    Assignee: The United States of America as represented by the Administrator of the U.S. Environmental Protection Agency
    Inventor: Charles L. Gray, Jr.
  • Patent number: 6607007
    Abstract: A valve apparatus especially well-suited for use in gaseous oxygen delivery systems. A valve apparatus is provided that substantially reduces the risk of fire in high-pressure oxygen systems. The apparatus is particularly well-suited for use as a plug valve on ordinary cylinder containers, but may be beneficially used in any pressurized gas system, particularly oxygen systems such as those encountered in many industrial facilities. The wetted portion of the valve is isolated from threaded portions to prevent particulate contamination of the gas stream. The valve seat is located to protect it from direct impact of high-velocity gas streams. The inventive valve, and its associated inventive check-filter and excess-flow prevention features, reduces the potential for hazardous combustion at valve points within oxygen delivery systems.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: August 19, 2003
    Inventors: Wendell C. Hull, Barry E. Newton
  • Patent number: 6341622
    Abstract: A valve and an arrangement for a fire suppression water sprinkler system includes a valve which has an inlet and an outlet with a restricted orifice to limit the flow through the valve to correspond to the flow through a single sprinkler head. The valve has a biasing member so that the valve opens when the pressure in the inlet exceeds a predetermined pressure and the valve may be opened manually to test the system or to drain the system.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: January 29, 2002
    Assignee: AGF Manufacturing, Inc.
    Inventor: George J. McHugh