Spring Biased Patents (Class 137/871)
  • Patent number: 9528539
    Abstract: Various exemplary illustrations of a coating agent device are disclosed. In one example, a coating agent device may be a coating agent valve, e.g., for influencing the discharge of a coating agent. The coating agent device may include a plug-in or pluggable fastening base configured to facilitate a plug-in or pluggable mounting of the coating agent device. In some examples, the coating agent device may prevent relative rotation of the device relative to a mating component.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: December 27, 2016
    Assignee: Duerr Systems GmbH
    Inventors: Frank Herre, Joachim Hering, Rainer Melcher, Thomas Buck, Michael Baumann, Bernhard Seiz, Manfred Michelfelder
  • Patent number: 8757211
    Abstract: A flow control valve, particularly an electromagnetic proportional directional flow control valve (1), has a valve housing (2), in which a control piston (3) is guided to be displaced axially. The control piston (3) actuates at least one fluid-conducting connection (4) between a fluid inlet (5) and an outflow opening (6). An actuator part, in particular an armature (8), can be actuated by an actuator, particularly a proportional magnet, and acts on the control piston (3). A pressure detecting piston (9) serves for the action of the actuator part on the control piston (3).
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: June 24, 2014
    Assignee: Hydac Fluidtechnik GmbH
    Inventors: Christopher Ward, Peter Malone
  • Publication number: 20130248034
    Abstract: A pressing waterway switch mechanism has a valve body and a switch mechanism. The valve body is provided with an inlet waterway, a plurality of outlet waterways, a guiding shaft, a guiding slot and a third teeth group. The switch mechanism comprises a sector disk, a return spring and a pressing piece. A first teeth group is arranged on the circle center of the sector disk, the first teeth group is sleeved out of the guiding shaft in a relative sliding and rotating manner, and at least the switch of a plurality of outlet waterways can be achieved through the relative rotation between the sector disk and the valve body. The pressing piece is connected to the guiding slot in a sliding manner, of which the end is provided with a second teeth group. The first teeth group can couple with the second teeth group and the third teeth group.
    Type: Application
    Filed: December 15, 2011
    Publication date: September 26, 2013
    Applicants: XIAMEN SOLEX HIGH-TECH INDUSTRIES CO., LTD.
    Inventors: Huasong Zhou, Fuli Guo, Haisong Peng, Hui Huang
  • Patent number: 8539983
    Abstract: A by-pass valve for a heat exchanger circuit. The by-pass valve includes a housing defining a serially communicating first bore, second bore and third bore substantially aligned along a central axis with a valve seat facing the first bore at a juncture between the first bore and second bore and a spring seat facing the second bore at a juncture between the second bore and third bore, the first bore, second bore and third bore forming at least a portion of a closable flow path between a first opening and a second opening in the housing. An actuator located in the housing has a reciprocating seal disposed for movement along the central axis for engaging the valve seat and closing a valve opening between the first bore and second bore. A coiled return spring is mounted in the housing for urging the reciprocating seal towards the first bore to open the valve opening, the return spring having a first end acting on the reciprocating seal and a second end engaging the spring seat.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: September 24, 2013
    Assignee: Dana Canada Corporation
    Inventors: Mark Stephen Kozdras, Jeff Sheppard, Dario Bettio
  • Publication number: 20130032236
    Abstract: A dual-purpose fluid control valve for controlling the flow of fluid to separate systems supplied by the valve. The control valve includes a body having an inlet, a first outlet, and a second outlet. The valve further includes means for controlling a rate of fluid through one outlet based on a fluid demand at the outlet while controlling the rate of fluid flow through the other outlet.
    Type: Application
    Filed: June 15, 2010
    Publication date: February 7, 2013
    Inventors: Yoram Ringer, George V. Simonin, John R. Iasa, JR.
  • Publication number: 20090178713
    Abstract: A valve positioner for controlling a valve closure element is provided. The positioner includes a positioner housing with a plurality of fluid flow passageways in fluid communication with a fluid supply source and the valve closure element. The positioner housing is configured to receive a detachable spool manifold assembly. The spool manifold assembly is positioned adjacent the plurality of fluid flow passageways. The spool manifold assembly includes a reciprocally moveable spool configured to selectively port fluid flow from the plurality of fluid flow passageways. The spool manifold assembly includes a diaphragm connected to the spool via a flexible shaft. The diaphragm is in fluid communication with a transducer for receiving a fluid causing the diaphragm to expand or contract and thereby displacing the spool. The flexible shaft is radially elastic in order to minimize axial backlash between the diaphragm and the spool. The flexible shaft configuration minimizes the spool stroke.
    Type: Application
    Filed: August 28, 2008
    Publication date: July 16, 2009
    Inventor: Flavio Tondolo
  • Patent number: 7543796
    Abstract: A high flow calibration test point has entry, inlet, and outlet ports and a spring-biased plunger that in one position provides communication between the entry port and both the inlet and outlet ports, in another position provides communication between the entry port only with the outlet port, and in yet another position allows communication only between the inlet and outlet ports.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: June 9, 2009
    Assignee: Wabtec Holding Corporation
    Inventors: James T. Dewberry, Robert N. Scharpf, John A. Crispin
  • Publication number: 20090025813
    Abstract: This present invention provides a water diverting device. There is an inlet and two outlets in its inlet and outlet pipeline, and there is an upper sealing seat and a lower sealing seat respectively for the two outlets; the said water diverting device is provided with a water diverting switch that fits with the said sealing seats and used to switch over the two outlets. The said switch includes a sliding shaft and, fixed base, and there is a sliding through hole for the sliding shaft. The said switch is also provided with a retaining hook for holding the sliding shaft up and down direction. On the surface of the said sliding shaft, there are the first stop position and second stop position fitting with the hook part of the retaining hook, first unidirectional slide channel and second unidirectional slide channel. The said switch has a spring pushing the sliding shaft from head of the sliding shaft towards its tail.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 29, 2009
    Inventor: Difeng Cen
  • Patent number: 7329234
    Abstract: A self-occluding catheter includes a body portion for connection to extracorporeal equipment. An elongated tubular extension is provided for insertion into a body cavity. The body portion includes a resiliently biased spool supported therein which is slidable between an open and a closed position for alternately permitting and stopping the flow of blood through the catheter during a given medical procedure. The biasing device for resilient biasing the spool preferably comprises one or more magnets fixed within the body portion which generate a magnetic force for urging the magnetically polarized spool to its closed position.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: February 12, 2008
    Assignee: Scimed Life Systems, Inc.
    Inventor: Michael R. Sansoucy
  • Patent number: 7213616
    Abstract: A diversion valve fluid coupling, permitting alternate flows in first and second operating positions, including a valve housing with inlet, first and second outlet ports; a quick disconnect coupling attached to the second outlet port and a seal interposed therebetween; a movable diverter valve assembly, having interconnected actuating and opposing valves; the actuating valve, in the first operating position, having a first sealing engagement with the seal; the opposing valve, in the second operating position, having a second sealing engagement with a first outlet port; a biasing member, biasing the diverter valve into the first sealing engagement, blocking the second outlet port while permitting flow to the first outlet port; and, for the second operating position, a nipple member, removably mating with the quick disconnect coupling and translating the diverter valve into the second sealing engagement, blocking the first outlet port while permitting flow into the second outlet port.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: May 8, 2007
    Assignee: Parker-Hannifin
    Inventors: Charles Dean Wuollet, Shawn David Ellis, Paul Edward LeMay, Brian Keith Foner
  • Patent number: 7000854
    Abstract: A spray head for a faucet or the like has a wand body defining a flow path from an inlet to first and second outlets. Diverter seats are provided so a face seal on a diverter spool can direct flow to the first or second outlet. The spool is positioned by a trigger acting on cam surfaces formed on a toggle. A spring biases the toggle to one of two stable states. Movement of the spool by the trigger causes the toggle to change states so subsequent actuation of the trigger causes the spool to move in the opposite direction. The wand body also has a pause button that reciprocates in a chamber that is part of the flow path. The chamber includes a valve seat and the pause button has a spool having a face seal that is engageable with the valve seat to shut off flow through the spray head. A return spring causes separation of the pause button's face seal upon release of pressure on the pause button.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: February 21, 2006
    Assignee: Moen Incorporated
    Inventors: Michael L. Malek, W. Randall Tucker, Peter Bates, Gaurav Rohatgi
  • Patent number: 6959703
    Abstract: A paintball gun throttle regulator device includes a body, an adjusting bolt, an elastic element, an adjusting piston, and a cocking. The body comprises a piston chamber, an air chamber next to the piston chamber, and a connecting chamber. The piston chamber and the connecting chamber are formed with threads inside and comprise air release holes, respectively. The air chamber is interconnected with the connecting chamber by through holes. The air chamber comprises an air outlet. The adjusting bolt is threadedly connected to the piston chamber with one end engaging with one end of the elastic element which has another end engaged with one end of the adjusting piston. The adjusting piston is slid into the piston chamber. The adjusting piston has another end secured with one end of the cocking. The cocking has another end extending through the piston chamber and the air chamber and into the connecting chamber.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: November 1, 2005
    Inventors: Michael Steven Spurlock, Hsin Cheng Yeh
  • Patent number: 6957666
    Abstract: Improved low flow impedance flow control valves are disclosed in the present invention wherein spring valve means (12) captured between a valve spool (28) and a shoulder (30) are utilized for selectively metering a flow of fluid from an inlet port (18) to an outlet port (14) via a round edged helical orifice (82) formed between the open coils of the spring valve (12) as a function of the instant axial position of the valve spool (28) and the differential pressure therebetween. An improved method of controlling low impedance flow control valves is also disclosed in the present invention. The improved method provides better accuracy in controlling fluid flow through low flow impedance flow control valves through continually cycling a means for substantially interrupting fluid flow therethrough in a low frequency pulse width modulated fashion.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: October 25, 2005
    Assignee: Cafe Engineering
    Inventor: Edward H. Phillips
  • Patent number: 6880572
    Abstract: The present invention is directed to an exhaust gas control (EGC) valve. The EGC valve comprises a valve housing having at least one inlet port, at least one outlet port, and a flow channel having a centerline extending between the ports. A valve seat is adjacent an opening in the at least one outlet port. The EGC valve further comprises a rotatable actuator shaft offset from the centerline. At least one L-shaped valve armature is operably connected to the actuator shaft. The valve armature has a first leg and a second leg. The first leg is connected to the actuator shaft so that rotation of the actuator shaft in a first direction positions the second leg into sealing engagement with the valve seat to close the flow channel.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: April 19, 2005
    Assignee: Jenara Enterprises Ltd.
    Inventor: John P. Hartley
  • Publication number: 20030164195
    Abstract: The present invention provides a valve apparatus comprising a conduit, including a first port, a second port, and a third port, a piston sealingly disposed within the conduit, including a first piston aperture and a second piston aperture, a piston valve configured to seal the second port, and a bore, extending from the first piston aperture to the second piston aperture, and configured to facilitate communication between the first port and the second port, and a valve, disposed within the conduit, and configured to seal the third port.
    Type: Application
    Filed: March 1, 2002
    Publication date: September 4, 2003
    Inventors: Erick Girouard, Derek Jean, David McDivitt
  • Patent number: 6330891
    Abstract: In a double-damper apparatus 1 including a driving portion (2), two frame portions (3 and 4) arranged on both sides of the driving portion, and two open/close members (5 and 6) which are coupled with the driving portion (2) and perform the operation of opening/closing the openings (31 and 41) formed in the frame portions respectively by the driving force of the driving portion, a steps(s) &bgr; is formed between the flat portions (37b and 47b) of the two frame portions (3 and 4). A labyrinth structure is formed between both flat portions (37b and 47b) to prevent leakage of fluid between both fluid channels.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: December 18, 2001
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventor: Seiichiro Noritake
  • Patent number: 6003552
    Abstract: A rocker valve for alternately sealing one of two outlet ports is provided with two cylinders in which there are respectively disposed pistons carrying sealing members for longitudinal reciprocation along the extended axes of valve seats respectively surrounding the port openings. The rocker is rotated to urge one piston toward its respective valve seat while permitting the other piston to be retracted from its respective valve seat. An elastomeric diaphragm is mounted between the sealing members mounted on the pistons and the valve seats whereby the sealing members urge the diaphragm against the valve seats during sealing. The longitudinal motion of the pistons prevents skewing of the sealing members during rotation of the rocker arm for maintaining the sealing members parallel to the valve seats throughout the strokes of the pistons.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: December 21, 1999
    Assignee: Automatic Switch Company
    Inventors: John R. Shank, Peter A. Holborow, William G. Reeson, Jr.
  • Patent number: 5937905
    Abstract: A faucet head having at least two different types of outlets, utilizes a three-way valve which permits on-off operation of the faucet distal end. In conjunction with on-off operation, the three-way valve also controls flow of water through one of the faucet head outlets.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: August 17, 1999
    Assignee: Robert O. Santos
    Inventor: Robert O. Santos
  • Patent number: 5865157
    Abstract: A fuel distributor for delivering fuel under pressure to cylinders of an engine. The distributor includes a housing, an inlet for delivering fuel under pressure to the housing, a plurality of outlets in the housing and a valve assembly mounted in each outlet. Each valve assembly is for connection to a fuel injector mounted in a cylinder of the engine, and each assembly includes a passage for delivering fuel under pressure from the housing, a plunger positioned in the passage, and a valve spring biasing the plunger to one of a passage open position and a passage closed position. The fuel distributor also includes a cam for moving the plungers against the valve springs, whereby movement of the cam controls fuel flow to the cylinders.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: February 2, 1999
    Assignee: Pacer Industries, Inc.
    Inventors: Patrick Romanelli, Robert James Romanelli
  • Patent number: 5549136
    Abstract: A metering valve wherein an outer casing defines a first and second chamber communicating with each other via a hole and respectively communicating externally of the casing via a fluid inlet conduit and a fluid recirculating conduit. The first chamber also communicates externally via a supply conduit, and houses a shutter movable axially inside the chamber between a first position wherein a first portion of the shutter closes the aforementioned hole, and a second position wherein a second portion of the shutter closes the supply conduit. For any intermediate position between the first and second positions, the total area of the gaps between the supply conduit and the second portion and between the hole and the first portion is notably constant, so that, for any position of the shutter, the total section of the fluid passage of the metering valve is constant.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: August 27, 1996
    Assignee: Dromont Meccanica S.r.l.
    Inventors: Luca Drocco, Mario Drocco
  • Patent number: 5217169
    Abstract: A device for retarding drool from a multi nozzle manifold having a plurality of outlet passageways in fluid communication with a single feed passageway. A drool-retarding member selectively segregates the outlet passageways with respect to fluid communication among the outlet passageways, preventing flow from one outlet passageway into a lower outlet passageway during adhesive cutoff periods. The drool-retarding member is a reciprocating member having an inoperative position in which a plurality of inlet ports to the outlet passageways are sealed, and having a fluid-apply position in which the inlet ports are free to allow fluid communication among the outlet passageways and the feed passageway. In a passive embodiment, the drool-retarding member is a valve that is spring biased to cover the inlet ports. Pressurized adhesive overcomes the bias of the spring when an upstream flow-regulating mechanism is controlled to discontinue adhesive flow.
    Type: Grant
    Filed: July 8, 1991
    Date of Patent: June 8, 1993
    Assignee: Slautterback Corporation
    Inventors: W. Harrison Faulkner, III, Douglas E. Colton, Neil L. Sarasohn
  • Patent number: 5167256
    Abstract: There is provided a closed loop system for measuring an amount of liquid under pressure in a container. The system comprises a container holding a liquid under pressure, a novel differential valve with check valves which are connected to the container and to a differential gauge, and a means for activating the valve.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: December 1, 1992
    Inventor: Walter W. Keeney
  • Patent number: 5163479
    Abstract: There is provided a closed loop system for measuring an amount of liquid under pressure in a container. The system comprises a container holding a liquid under pressure, a novel differential valve with check valves which are connected to the container and to a differential gauge, and a means for activating the valve.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: November 17, 1992
    Assignee: The BOC Group, Inc.
    Inventor: Walter W. Keeney
  • Patent number: 5131426
    Abstract: An improved valve for controlling flow of water to a turbine engine is disclosed. A hydraulically actuated spool valve controls the volume of water flow. An inventive seal and drain system ensures that no hydraulic oil mixes with the water being directed to the turbine engine, which would increase emissions from the engine. Further, the system ensures that no water will intermix with the hydraulic fluid in the pressure chambers for the spool valve, which could degrade the oil in the hydraulic system.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: July 21, 1992
    Assignee: Dana Corporation
    Inventor: Matthew S. Schultz
  • Patent number: 5121511
    Abstract: A shower device includes a plurality of nozzles provided to a housing, supplied hot and cold water to the nozzles being turned on and off through solenoid valves which are provided in a self-maintaining type and are supplied with a power from a low voltage power source through a controller. The device is thereby made simple and easy in its installation and to be operable for a long term with considerably low voltage and small power.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: June 16, 1992
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Jyunichi Sakamoto, Tetsuya Onkura, Tsukasa Harada
  • Patent number: 5107898
    Abstract: There is provided a closed loop system for measuring an amount of liquid under pressure in a container. The system comprises a container holder a liquid under pressure, a novel differential valve with check valves which are connected to the container and to a differential gauge, and a means for activating the valve.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: April 28, 1992
    Inventor: Walter Keeney
  • Patent number: 4846226
    Abstract: A modular color changer provides selected paint colors for spraying and recirculates nonselected colors. A module is provided for each paint color to be selected, and each module has an inlet for connection with a respective supply of paint, a recirculate outlet, a delivery outlet and a single valve member. The valve member may be selectively engaged with either a first or a second seat, depending upon whether paint at the inlet is to be directed to the recirculate outlet for return to the supply or to the delivery outlet for flow to a paint applicator. Solvent and air purge valves are upstream of the modules for cleaning the color changer of one color of paint in preparation for supplying another.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: July 11, 1989
    Assignee: Binks Manufacturing Company
    Inventor: James S. Merritt
  • Patent number: 4616676
    Abstract: A two-way selector valve for a vehicle seat inflation device is disclosed. The selector valve includes a first input passageway connected between a source of pressurized air and a valve body chamber. The selector valve further includes second and third passageways which are connected between the valve body chamber and respective output conduits. Each of the output conduits is connected to a respective pneumatic chamber formed in the vehicle seat. A valve plate having first and second apertures formed therein is disposed within the valve body chamber. The valve plate is rotatable between first and second positions so as to selectively provide communication between the first passageway and a selected one of the second and third passageways. A relief valve is provided adjacent the valve plate for deflating the selected one of the chambers.
    Type: Grant
    Filed: July 27, 1984
    Date of Patent: October 14, 1986
    Assignee: Cooper Tire & Rubber Company
    Inventors: Norman R. Adams, Charles A. Gifford
  • Patent number: 4570856
    Abstract: A fluid circuit for a cleaning device having a mixture with separate water and cleaning fluid inlets and fittings interconnecting a pressurized source of water and a pressurized source of cleaning fluid responsive to change the mixing ratio of cleaning fluid to water as well as to assure the degree of mixing. The outlet of the mixing device is provided to a spray nozzle wherein the mixed fluid is projected onto a cleaning surface by an air stream through the spray nozzle. A common pump provides two levels of air pressure, a high one to the spray nozzle and a lower one to the pressurized sources of water and cleaning fluid.
    Type: Grant
    Filed: March 2, 1984
    Date of Patent: February 18, 1986
    Assignee: Regina Corporation
    Inventors: Hugh F. Groth, John M. Collins
  • Patent number: 4562874
    Abstract: A tire pressure control system having a pressure switch installed in a rim, which pressure switch, as part of a tuned circuit, damps, across an air gap, an HF transmitter, installed in a wheel web and having downstream analysis electronics, the pressure switch having a diaphragm pressure cell with a reference pressure, the diaphragm of which reference cell is subjected on one side to the reference pressure and on the other side to the tire pressure. A valve installed in the pressure switch makes it possible to adjust the reference pressure so that, when filling the tire, the desired tire pressure is simultaneously retained as the new reference pressure in the diaphragm pressure cell for the tire pressure control system.
    Type: Grant
    Filed: February 28, 1984
    Date of Patent: January 7, 1986
    Assignee: Daimler-Benz AG
    Inventor: Franz X. Scheller
  • Patent number: 4531549
    Abstract: A valve having at least one passage through the valve body and terminating in a port at one end of the valve body, a stem means extending through the valve body having a stem operating means on one end thereof and having the other end thereof terminating beyond the one end of the valve body and a closure means mounted on the free end of the stem means adapted to be rotated through an arc from a first position removed from the port to a second position adjacent the port, and having a closure element thereon adapted to close the port in the second position, whereby rotation of the stem moves the closure means from a first position, at which the fluid is admitted to the passage through the port, to the second position, at which fluid is prevented from entering the passage through the port.
    Type: Grant
    Filed: December 15, 1982
    Date of Patent: July 30, 1985
    Assignee: Phillips Petroleum Company
    Inventor: Delouis J. Fontenot
  • Patent number: 4526197
    Abstract: A pneumatic valve which is suitable for use in controlling the operation of a pneumatic drive system such as that used for raising and lowering the body of a dump truck. The valve is opened and closed by a slide member which is mounted in a cylinder fomed in the valve housing. An air inlet passage opens into the cylinder and an air outlet passage and a vent passage open from said cylinder. A first flow control valve in the inlet passage which is operable to close to prevent and open to permit the passage of air from the inlet passage to the cylinder. A second flow control valve in the vent passage which is operable to close to prevent and open to permit the passage of air from said cylinder to the vent passage thereby to vent the outlet passage.
    Type: Grant
    Filed: January 10, 1984
    Date of Patent: July 2, 1985
    Assignee: Diesel Equipment Limited
    Inventors: John C. Martin, Paul Martin
  • Patent number: 4505299
    Abstract: A 3-port, 2-position, directional control valve has two cylindrical closure elements for the alternate connection of a control line to a return flow line and a high pressure line. The switching force exerted on a thrust member is transmitted via pressure pins, and a manifold member with a centrally-positioned axial bore connected to the control line is arranged between the closure elements. Sealing elements on the closure elements seal the exit openings of the bore in the manifold member alternately. One of the pressure pins extends through the manifold member eccentrically while extending parallel to the axial bore and is always under pressure, like the high-pressure-side closure element, so that the closure element on the low pressure side is always held open in the zero position of the valve while the closure element on the high pressure side is acted on by the pressure medium in the direction of closure.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: March 19, 1985
    Assignee: Hermann Hemscheidt Maschinenfabrik GmbH & Co.
    Inventors: Josef Welzel, Karl Krieger
  • Patent number: 4491157
    Abstract: An air bag control valve assembly is adapted to control the inflation of a plurality of air bags installed in a seat back rest of an automobile to fit the contour of the seated individual. The valve assembly comprises an integrally assembled body in which a pressure compartment is formed, an inlet for connecting the pressure compartment to a source of air pressure, a plurality of combined check and release valve units for connecting the pressure compartment to each of the air bags, said combined check and release valve units being attached to the interior of said body, and push-button mechanisms attached to said body to correspond to respective ones of said combined check and release valve units, the combined check and release valve units being opened by said push-button mechanisms so that air enclosed within the air bags is expelled backwardly into the pressure compartment and thence discharged into the atmosphere through gaps defined between the body and the push-button mechanisms.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: January 1, 1985
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Nobuyuki Hashimoto
  • Patent number: 4491364
    Abstract: A lumber support system comprising an air bag disposed behind the upholstery sheet of a vehicle seat, a manual air pump and a valve assembly for controlling the supply of air from the manual air pump into the air bag as well as the discharge of the air contained in the air bag.
    Type: Grant
    Filed: February 12, 1982
    Date of Patent: January 1, 1985
    Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Takemi Hattori, Kozo Esaki
  • Patent number: 4466456
    Abstract: A housing (28) has parallel passageways (30). Each passageway (30) has an inlet port (34) and an outlet port (32). A valve stem (26) with a head (36) reciprocates in each passageway (30) to control the outlet port (32). A flat plate (22) rotates perpendicularly to the stems (26) and has flat surface portions (48) and cavities (46). The positioning of portions (48) and cavities (46) is programmed to bring one of them into alignment with each stem (26) when plate (22) is in any one of a number of predetermined positions. When a portion (48) is moved into alignment, it bears against the head (36) and moves the stem (26) inwardly against a spring (38) into a second position. When a cavity (46) is moved into alignment, the stem (26) is urged into its first position by spring (38) and its head (36) extends into the cavity ( 46).
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: August 21, 1984
    Assignee: Red Dot Corporation
    Inventor: Gary P. Hansen
  • Patent number: 4442861
    Abstract: The invention is a pneumatically operated valve assembly for simultaneously (1) closing gas-transfer lines connected to a gas centrifuge or the like and (2) establishing a recycle path between two of the lines so closed. The valve assembly is especially designed to be compact, fast-acting, reliable, and comparatively inexpensive. It provides large reductions in capital costs for gas-centrifuge cascades.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: April 17, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Charles A. Hahs, Charles H. Burbage
  • Patent number: 4425940
    Abstract: A pressure control system for use in vehicle emissions control includes an air control valve (12) having a housing (14) defining an inlet (16) communicated to the vehicle air pump and a pair of outlets (18, 20). A primary valve assembly (22) controls communication between the inlet (16) and the outlets (18, 20) and includes a pair of valve members (54, 56) actuated by a differential pressure responsive diaphragm assembly (39). The pressure differential across the diaphragm assembly (39) is controlled by a pressure signal generated from a pressure tap (84) from the inlet (16). A pair of solenoid valves (88, 92) controls communication to the diaphragm assembly and to a pressure responsive relief valve assembly (60) which controls communication between the inlet (16) and an atmospheric vent (78).
    Type: Grant
    Filed: April 2, 1981
    Date of Patent: January 17, 1984
    Assignee: Canadian Fram Limited
    Inventor: John E. Cook
  • Patent number: 4425941
    Abstract: A valve construction having a housing provided with a chamber and ports leading to the chamber and having an axially movable piston unit disposed in the chamber to interconnect certain of the ports together in relation to the axial position of the piston unit that is caused by a condition responsive device and a spring operatively associated with the piston unit, the piston unit comprising a plurality of pistons disposed in spaced substantially parallel relation and being secured together to be axially moved in unison in the chamber under the influence of the condition responsive device. The spring comprises a single coiled compression spring telescopically receiving the pistons therein, the pistons being of different lengths.
    Type: Grant
    Filed: June 12, 1981
    Date of Patent: January 17, 1984
    Assignee: Robertshaw Controls Company
    Inventor: Marvin P. Weaver
  • Patent number: 4407400
    Abstract: A winch control valve is provided for controlling the flow of fluid to and from a clutch and a brake of a winch transmission which are operable for establishing a hold condition in the winch when no fluid pressure is connected to the clutch and brake, a free spool condition wherein pressure fluid is connected to only the brake, and a wind-in condition wherein fluid pressure is connected to both the clutch and the brake. In addition, the valve spool is provided with lands which are dimensioned slightly smaller than service ports leading to the clutch and brake of the winch so that pressure fluid may selectively be routed to the service ports and at the same time, be metered to sump whereby a partial clutch engagement pressure may be effected in the clutch to thereby establish an inching condition and whereby partial pressure may be established in the brake passage for effecting a partial release thereof so as to establish a controlled release condition in the winch.
    Type: Grant
    Filed: January 29, 1981
    Date of Patent: October 4, 1983
    Assignee: Deere & Company
    Inventor: Gary R. Fichtinger
  • Patent number: 4380249
    Abstract: Right- and left-hand steering clutch and brake control valves each include a valve plunger, brake control spool and clutch control spool arranged in serial order in a valve bore with coil compression springs being interposed between the plunger and brake control spool, between the brake and clutch control spools and between the clutch control spool and an end of the bore. The reacting force on the control spools is a spring and constant hydraulic force while the applied force is by way of springs and hydraulic function pressure.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: April 19, 1983
    Assignee: Deere & Company
    Inventors: Wilbur D. Behlmer, John J. Kass
  • Patent number: 4367764
    Abstract: An air by-pass valve (1) has an air inlet (5), an air outlet (7), a relief port (11), and a relief valve (37) responsive to excessive air pressure for opening the relief port and dumping air to atmosphere. The relief valve comprises a valve member (39) mounted on a stem (23) and movable relative thereto. One side of the valve member is acted on by a spring (41) biasing the valve member to close the relief port. Air pressure acts on the opposite side of the valve member to move the valve member against the spring and open the relief port. The side of the valve member against which the spring acts is contoured so the spring force is unevenly applied to the valve member over the surface on which the spring acts.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: January 11, 1983
    Assignee: ACF Industries, Inc.
    Inventors: John B. Fitzgerald, George L. York
  • Patent number: 4352763
    Abstract: A vent changeover device for carburetors comprising two working ends provided on a piston rod of a piston moving in a suction chamber, one of which constitutes a rod end of the piston and the other of which constitutes an angle member joined to an end portion of the piston rod, an inner valve being actuated by the angle member so as to open and close an inner vent, an outer valve being actuated by the rod end so as to open and close an outer vent and disposed so as to face in a direction opposite to the direction in which the inner valve faces, and springs biasing the inner and outer valves, respectively, in vent-closing directions, the vents communicating with the fuel bowl via the respective valves, the inner and outer valves being adapted to be actuated in accordance with the movement of the piston rod such that when one of the valves is opened, the other is closed, the inner vent being opened only when the engine is rotated, and the outer vent being opened only when the engine is stopped.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: October 5, 1982
    Assignee: Aisan Industry Co., Ltd.
    Inventors: Nobuo Yamada, Toshiharu Morino
  • Patent number: 4298028
    Abstract: A starting valve is disclosed having a starter choke valve and a poppet valve which is kept closed by the starter choke valve when the choke valve is in an open position. For mounting the starter choke valve there is provided a choke shaft and a bushing set screw which interact with a plurality of tapered bushes. The arrangement provides for an axial and a radial compression of the bushes to prevent foreign matter from fouling the movement of the choke. Also a compensation for the varying tolerances between the component parts is accomplished by providing a plurality of rubber-elastic components.
    Type: Grant
    Filed: January 24, 1980
    Date of Patent: November 3, 1981
    Assignee: BBC Brown, Boveri & Company Limited
    Inventors: Reinhard Fried, Andreas Mayer, Ambrogio Perego
  • Patent number: 4296777
    Abstract: The invention relates to a multiple coupling for lubricating systems, preferably progressive lubricating systems of motor vehicles, especially tractor trailer units. The multiple coupling a plug box and a plug, with the help of which several lubrication pipes may be interconnected. In order that the plug box-plug-combination may be used for variable number of lubrication pipes, a special valve arrangement has been provided with the help of which the desired number of passages of lubrication pipes is opened or closed.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: October 27, 1981
    Assignee: Lincoln-Helios GmbH
    Inventor: Karl Rodemer
  • Patent number: 4289167
    Abstract: The disclosed delivery system delivers a supply of fluid under pressure through a plurality of outlet lines simultaneously at desired intervals. The system enables controlled, intermittent fluid flow without drippage, as needed in the application of dampening fluid to the ink roll or offset plate on the plate cylinder of an offset printing press or in the application of solvent in a blanket cylinder washing system. A single valve provides fluid flow control by utilizing a single piston to simultaneously open and close all flow lines.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: September 15, 1981
    Assignee: Ryco Graphic Manufacturing, Inc.
    Inventor: Thomas G. Switall
  • Patent number: 4276237
    Abstract: A carburetor air control valve device which accurately meters air flow to each of the ports of a carburetor. A plurality of closure members of the poppet type are operated by expansion of a bellows member, as the bellows member expands in response to changes in density of the air to which the valve device is subjected. Each of the closure members is adapted to control flow of air to a port of an automotive carburetor.
    Type: Grant
    Filed: August 1, 1979
    Date of Patent: June 30, 1981
    Assignee: Standard-Thomson Corporation
    Inventors: Glenn B. Barker, William K. Coburn, III
  • Patent number: 4203423
    Abstract: A device for diverting exhaust gases from the engine of a vehicle such as an automobile to opposite tread surfaces of the driving wheel tires thereof. The device includes a valve assembly having a body interconnected to the vehicle exhaust system, conduits for diverting the above-indicated gas flow being joined to the body and extending outwardly therefrom. A valve member in the form of a pivoted plate is located within the body and is manually operated to divert the exhaust gases into the conduits for discharge at the driving wheels of the vehicle. The device is useful in removing ice or snow from the driving wheels as well as preventing hydroplaning thereof in wet weather.
    Type: Grant
    Filed: August 3, 1978
    Date of Patent: May 20, 1980
    Assignee: Sno-Go Inc.
    Inventor: Donald C. Ricci
  • Patent number: 4195777
    Abstract: An improved hot water heating system used with an internal combustion engine is disclosed. This system provides a hot water flow control arrangement in which hot water supplied to a heating radiator is controlled by a valve and a pressure responsive bypassing means to keep a comfortable temperature. The pressure responsive bypassing means is closed when the maximum heating capacity is required to avail to the heating radiator all the hot water supplied by the engine even when the hot water pressure increases to exceed a bypassing pressure level.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: April 1, 1980
    Assignee: Nippondenso Co., Ltd.
    Inventors: Munemitsu Ikebukuro, Masao Yamaguchi
  • Patent number: 4181154
    Abstract: A deflector valve for fluids directs fluid flow from an inlet port into either of two outlet ports. Deflection of the fluid into the desired outlet port is controlled by piston means which typically are operated by a solenoid. A unique operating pin, shaped like an hourglass, provides mechanical engagement between the piston means, and also facilitates the flow of fluid in the desired direction. The piston means are spring-biased, so that the valve selects one of the outlet ports in the de-energized state. The other outlet port is selected when the piston means encounter an external force opposing the spring.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: January 1, 1980
    Assignee: ARA Services, Inc.
    Inventors: Leonard Oley, Joseph Stachnik