Rubber Valve Springs Patents (Class 137/903)
  • Patent number: 8991430
    Abstract: A medical valve having a valve inside housing and a valve core. The valve core is installed within the housing. The housing is preferably an integrally-formed hollow cylindrical structure. An annular protrusion may be arranged on the outer surface of the housing and a seal ring may be arranged in the center of the inner wall of the housing. The valve core can be made of an elastic material as an integrally-formed cylindrical structure. A lock ring matched with the seal ring of the housing may be arranged on the outer surface of the valve core, and the lock ring can be integrally formed with the valve core. The medical valve inside disclosed by the invention is widely applied to the medical fields such as cushion mask, trachea cannula and laryngeal mask, No metal member is preferably employed, so with magnetic resonance imaging examination without causing interference.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: March 31, 2015
    Assignee: Shenzhen Yuantai Medical Equipment Co., Ltd.
    Inventor: Danyu Huang
  • Patent number: 8074683
    Abstract: A valve system that includes (i) first and second longitudinally facing members defining a gap therebetween in fluid communication with transversely offset first and second orifices through the members, (ii) a primary biasing means longitudinally biasing the members away from one another, (iii) an elastic element positioned within the gap between the first and second orifices, and (iv) a repositioning means for longitudinally repositioning one of the members towards the other member against the bias of the primary biasing means for adjusting the longitudinal height of the gap. The members can be repositioned between (a) a first position wherein the elastic element does not seal the gap so as to allow fluid flow from the first orifice to the second orifice through the gap, and (b) a second position wherein the elastic element is compressed between the members and seals the gap so as to prevent fluid flow from the first orifice to the second orifice through the gap.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: December 13, 2011
    Assignee: Mocon, Inc.
    Inventor: Stephen D. Tuomela
  • Patent number: 7895815
    Abstract: Devices comprising a plug positioned within a housing to regulate air within a container, for example, plastic storage containers or bags. One embodiment utilizes a plug that occludes an opening in a housing. The plug is displaced from the opening to inject or evacuate air from a container. An alternative embodiment utilizes a plug having air channels therein which can be sealed once air has been injected into or evacuated from a container. The devices are utilized with hose adaptors connected to vacuum or air hoses having specialized hose tips for coupling with the housing.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: March 1, 2011
    Inventor: Joseph M. Waldron
  • Patent number: 7765777
    Abstract: Devices comprising a plug positioned within a housing to regulate air within a container, for example, plastic storage containers or bags. One embodiment utilizes a plug that occludes an opening in a housing. The plug is displaced from the opening to inject or evacuate air from a container. An alternative embodiment utilizes a plug having air channels therein which can be sealed once air has been injected into or evacuated from a container. The devices are utilized with hose adaptors connected to vacuum or air hoses having specialized hose tips for coupling with the housing.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: August 3, 2010
    Inventor: Joseph M. Waldron
  • Patent number: 7766028
    Abstract: A variable device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaphragm controls flow into the chamber. Increased pressure in the chamber decreases the flow into the chamber and decreasing pressure increases flow whereby fluid flow out from the chamber is maintained at a desired pressure. The outlet pressure is adjusted by deflecting the diaphragm in a direction to open the valve while permitting a section of the diaphragm connected to the valve member to remain responsive to the pressure in the chamber. An adjustment cover is provided to adjustably deflect the diaphragm and includes a catch mechanism to allow adjustment of the fluid outlet pressures and also retain the device at a desired value. An indicator arrangement may be provided to visually indicate the fluid outlet pressure.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: August 3, 2010
    Assignee: I-Flow Corporation
    Inventors: Roger Massengale, Stanley Fry, Charles J. McPhee
  • Patent number: 7708031
    Abstract: A check valve and method for manufacture of the check valve. The check valve comprises a substrate and a channel in the substrate. The channel has an anchor region, a channel corridor and a valve seat region. There is an elastomeric valve mechanism in the channel. The valve mechanism has an anchor portion anchored in the anchor region, an elastomeric web portion in the channel corridor and a valve plug in the valve seat region. The elastomeric web portion interconnects the anchor portion and the valve plug. The elastomeric web portion is in a stretched state such that the valve plug is forced by the elastomeric web portion against the valve seat region to seal the valve seat region. The force of the elastomeric web portion can be overcome by operative fluid pressure within the channel to separate the valve plug from the valve seat region and thereby open the channel at the valve seat region to allow the fluid to exit the channel via the valve seat region.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: May 4, 2010
    Assignee: International Business Machines Corporation
    Inventor: Joseph J. Fatula, Jr.
  • Patent number: 7540304
    Abstract: A check valve includes a valve body having an inlet end through which air enters the valve and a valve cavity extending through the valve body and leading to an outlet end. A valve assembly is located at a position that enables control of the flow of air through the valve cavity. The valve assembly includes a tapered section having a cross section that increases in diameter in a direction that is downstream from the inlet end of the valve and which may be included as part of a plug. An elastomeric seal is mounted around the tapered section to reciprocate on the tapered section, with the tapered section biasing the elastomeric seal to a normal position at which the seal comes into sealing contact with both the valve body and tapered section to prevent the downstream flow of air from the inlet end out the outlet end.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: June 2, 2009
    Assignee: R. Conrader Company
    Inventor: James P. Cornwell
  • Patent number: 7458392
    Abstract: A check valve is for use in a fluid system. A valve body has an inlet end, a valve cavity, and an outlet end. A valve enables a valve assembly to control the flow of fluid therethrough. A plug of the valve assembly includes tapered and non-tapered sections, the tapered section having a cross section that increases in diameter in a direction that is downstream from the inlet end of the valve body. A sealing ring is mounted to reciprocate on the non-tapered section and an elastomeric actuation ring is mounted along the tapered section. The tapered section biases the actuation ring to a normal position, at which the actuation ring contacts and positions the sealing ring in contact with the valve body and the valve assembly to prevent fluid from flowing out the outlet end of the valve body.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: December 2, 2008
    Assignee: R. Conrader Company
    Inventor: James P. Cornwell
  • Patent number: 7328548
    Abstract: A device comprising a plug positioned within a housing to regulate air within a container, for example, plastic storage containers or bags. The plug is positioned within the housing to occlude a port hole in the housing. The housing is positioned within a container so the port hole faces a wall of the container. A hole is created in the container above the port hole. To evacuate or inject air into the container, a hose adaptor with a specialized hose tip is connected to a vacuum or air hose. When inserted into the port hole, the hose tip temporarily displaces the plug from the port hole. Vents within the housing allow air to move through the housing and into or out of the hose tip. Removal of the hose tip allows the plug to resume position over the porthole to maintain the vacuum or air pressure within the container.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: February 12, 2008
    Inventor: Joseph M. Waldron
  • Patent number: 7325381
    Abstract: Devices comprising a plug positioned within a housing to regulate air within a container, for example, plastic storage containers or bags. One embodiment utilizes a plug that occludes an opening in a housing. The plug is displaced from the opening to inject or evacuate air from a container. An alternative embodiment utilizes a plug having air channels therein which can be sealed once air has been injected into or evacuated from a container. The devices are utilized with hose adaptors connected to vacuum or air hoses having specialized hose tips for coupling with the housing.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: February 5, 2008
    Inventor: Joseph M. Waldron
  • Patent number: 7140520
    Abstract: A spigot for a beverage container includes a body having a passage with first and second ends formed therethrough. An annular shoulder extends into the passage proximate the first end thereof and an annular valve seat is formed proximate the second end. An elastomeric plunger positioned in the passage includes a button with a sealing flange seated against the annular shoulder and a valve head biased against the valve seat. The body further includes a plurality of fins extending radially into the passage, each fin has a first end adjacent the annular shoulder such that the first ends contact the sealing flange as the button is depressed. The fins act to inhibit the sealing flange from coming unseated from the shoulder.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: November 28, 2006
    Assignee: Rutland, Inc.
    Inventor: Jay B. Rutler
  • Patent number: 7028922
    Abstract: A soap dispenser system includes a venturi suction tube having a soap supply bore intersecting the main through bore; a soap dispenser controlling dispensing of soap from a container; and a supply tube connecting the soap dispenser to the soap supply bore of the suction tube; the soap dispenser including an inner tube having fluidly connected with the supply tube, an outer tube movably mounted over the inner tube and connected with the container, the outer tube fluidly connected with soap from the container and adapted to be fluidly connected with the inlet of the inner tube, a spring applying pressure between the inner tube and the outer tube in a direction to move them apart, a valve permitting soap to enter the inlet of the inner tube only when the outer tube is moved toward the inner tube against the force of the biasing device.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: April 18, 2006
    Inventors: Brian T. Leonard, Thomas C. Hartmann
  • Patent number: 6938642
    Abstract: A variable device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaphragm controls flow into the chamber. Increased pressure in the chamber decreases the flow into the chamber and decreasing pressure increases flow whereby fluid flow out from the chamber is maintained at a desired pressure. The outlet pressure is adjusted by deflecting the diaphragm in a direction to open the valve while permitting a section of the diaphragm connected to the valve member to remain responsive to the pressure in the chamber. An adjustment cover is provided to adjustably deflect the diaphragm and includes a catch mechanism to allow adjustment of the fluid outlet pressures and also retain the device at a desired value. An indicator arrangement may be provided to visually indicate the fluid outlet pressure.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: September 6, 2005
    Assignee: I-Flow Corporation
    Inventors: Roger Massengale, Stanley E. Fry, Charles J. McPhee
  • Patent number: 6910466
    Abstract: A canister purge valve for regulating fuel vapor flow between a fuel vapor collection canister and an intake manifold of an internal combustion engine. The canister purge valve includes a body having a wall defining a passage extending between a first port and a second port. The first port is adapted for fuel vapor communication with the fuel vapor collection canister. The second port is adapted for fuel vapor communication with the intake manifold of the internal combustion engine. An elastomeric actuator is at least partially disposed in the passage, and includes a first end, a second end spaced from the first end along a central axis, and a sealing surface between the first end and the second end. The sealing surface has a first diameter at a first portion and a second diameter at a second portion, the second diameter being wider than the first diameter.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: June 28, 2005
    Assignee: Siemens VDO Automotive Inc.
    Inventor: Andre Veinotte
  • Patent number: 6889668
    Abstract: A system for flowing fuel vapor through a canister purge valve includes a valve body having a wall that defines a passage between a first port and a second port. The first port may be adapted for fuel vapor communication with a fuel vapor collection canister, and the second port may be adapted for fuel vapor communication with an intake manifold of an internal combustion engine. The system includes an elastomeric member having a first end, a second end, and an active zone between the first end and the second end. The active zone forms a flow entry portion, a sealing portion, and a flow exit portion. The elastomeric member is deformable between a first configuration that prohibits flow over the sealing portion, and a second configuration that permits flow over the sealing portion. The system includes a stator proximate the passage, an electromagnetic coil surrounding the passage, and an armature coupled to the elastomeric member.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: May 10, 2005
    Assignee: Siemens VDO Automotive, Inc.
    Inventor: Andre Veinotte
  • Patent number: 6851938
    Abstract: A magnetic pumping system includes a pump, capable of urging a fluid therefrom during a forward stroke and a return stroke, having a piston disposed within a cylinder defined by a pump body, and a driver disposed external to the pump body. The driver is capable of moving the piston by a magnetic field interaction between the driver and the piston. The system further includes a check valve bridge, spaced away from the pump and in fluid communication with the cylinder, capable of allowing ingress and egress of the fluid into and out of the cylinder in response to a movement by the piston.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: February 8, 2005
    Assignee: Vanderbilt University
    Inventors: Yuqing Ding, M. Douglas Levan
  • Patent number: 6619308
    Abstract: A variable device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaphragm controls flow into the chamber. Increased pressure in the chamber decreases the flow into the chamber and decreasing pressure increases flow whereby fluid flow out from the chamber is maintained at a desired pressure. The outlet pressure is adjusted by deflecting the diaphragm in a direction to open the valve while permitting a section of the diaphragm connected to the valve member to remain responsive to the pressure in the chamber. An adjustment cover is provided to adjustably deflect the diaphragm and includes a catch mechanism to allow adjustment of the fluid outlet pressures and also retain the device at a desired value. An indicator arrangement may be provided to visually indicate the fluid outlet pressure.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: September 16, 2003
    Assignee: I-Flow Corporation
    Inventors: Roger Massengale, Stanley E. Fry, Charles J. McPhee
  • Patent number: 6530395
    Abstract: A check valve arrangement utilizes a disc (15) for a valve member while eliminating the need for a ball. A valve seat in the common sense is unnecessary, too. Instead, a substantially flat surface (13) interacts with the disc (15). In order to allow unidirectional flow only, the disc (15) is biased toward the surface (13) by means of an elastic bias ring (17) which itself is held in place by a retainer (6) extending through the center hole (16) of the disc (15) and thereby axially guiding the disc (15). If desired, the flat surface (13) can be supplemented with an embedded sealing ring 18 to provide optimum sealing properties without precise machining of the surface (13). By designing the disc (15) and the retainer (6) in rotational symmetry, a directional adjustment of the parts is made unnecessary.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: March 11, 2003
    Assignee: Continental Teves, Inc.
    Inventor: Michael James Cunningham
  • Patent number: 6357723
    Abstract: An air driven diaphragm pump having two, opposed pumping cavities. A center section assembly between the pumping cavities includes a cylinder and a power amplifier piston. The power amplifier piston as well as the diaphragms are coupled with a common control shaft. A valve assembly is arranged with a manifold to receive pressurized air and distribute that air in alternating fashion to the sides of the power amplifier piston as well as to each of the diaphragms. By directing pressure to a side of the power amplifier piston facing the same direction as the diaphragm receiving pressure, an amplified pressure on a pump chamber is experienced. With the power amplifier piston being approximately twice as large as the diaphragm assembly, an amplification of three times the pressure on the pump chamber is experienced. Both pump chambers are able to operate to pump material.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: March 19, 2002
    Assignee: Wilden Pump & Engineering Co.
    Inventors: Dennis E. Kennedy, Wilfred D. Pascual
  • Publication number: 20010035515
    Abstract: An air driven diaphragm pump having two, opposed pumping cavities. A center section assembly between the pumping cavities includes a cylinder and a power amplifier piston. The power amplifier piston as well as the diaphragms are coupled with a common control shaft. A valve assembly is arranged with a manifold to receive pressurized air and distribute that air in alternating fashion to the sides of the power amplifier piston as well as to each of the diaphragms. By directing pressure to a side of the power amplifier piston facing the same direction as the diaphragm receiving pressure, an amplified pressure on a pump chamber is experienced. With the power amplifier piston being approximately twice as large as the diaphragm assembly, an amplification of three times the pressure on the pump chamber is experienced. Both pump chambers are able to operate to pump material.
    Type: Application
    Filed: June 15, 1999
    Publication date: November 1, 2001
    Inventors: DENNIS E. KENNEDY, WILFRED D. PASCUAL
  • Patent number: 6273117
    Abstract: A device for regulating the outlet pressure of a fluid from a valve body, includes a pressure-sensing chamber having a wall formed by a resilient self-restoring diaphragm which is responsive to pressure in the chamber. A valve element connected to the diaphragm controls flow into the chamber. Increased pressure in the chamber decreases the flow into the chamber and decreasing pressure increases flow whereby fluid flow out from the chamber is maintained at a desired pressure. The outlet pressure is adjusted by deflecting the diaphragm in a direction to open the valve while permitting a section of the diaphragm connected to the valve member to remain responsive to the pressure in the chamber.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: August 14, 2001
    Assignee: I-Flow Corporation
    Inventor: Charles J. McPhee
  • Patent number: 6158458
    Abstract: Medical intravenous administration connectors according to a first embodiment include a first coupling member having a female luer, a valve member having a substantially rigid stem and a substantially resilient body with a sealing surface, and a second coupling member having a fluid coupling extending from one end and an internal valve member support. The coupling members are structured to couple to each other with the valve member being biased to a closed position. When assembled, the valve stem extends into the female luer, and the valve body biases the sealing surface against an annular ring in the first coupling member thereby blocking fluid communication. Vanes are provided in the second coupling member on which the resilient body of the valve sits, with the vanes acting as a centering mechanism for the valve. The valve is opened for fluid flow through the assembly by coupling a male luer to the female luer of the assembly.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: December 12, 2000
    Inventor: Dana Wm. Ryan
  • Patent number: 6076804
    Abstract: A hydraulic valve for controlling the flow of a pressured liquid with a housing that has an inlet and an outlet with a pivotally mounted handle that actuated a valve stem member housed within an internal bore with a counter bore step surface. An O-ring member is mounted on the step surface that comes in contact with a convex surface provided in a peripheral flange member on the stem member. A compressible cylindrical member is trapped partially within an opening at one end of the valve stem member urging the convex surface against the O-ring thus blocking the flow of the pressurized liquid through the internal valve bore.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: June 20, 2000
    Inventor: Pedro Cabrera
  • Patent number: 5782816
    Abstract: A connector adapted to facilitate medicinal access into an intravenous tube includes a housing having a base and a cap defining a channel through the housing. A valve element disposed in the channel includes a plug and elastomeric shaft which biases the plug into sealing engagement with the housing. Operation of the connector by inserting a male Luer fitting in the housing axially compresses the valve element to a canted position thereby permitting medicinal access through the channel and into the intravenous tube. Canting of the valve element can be facilitated by providing a finger along the channel or by providing a predetermined buckling section along the valve element. The shaft of the valve element can be rounded and disposed in an arcuate cavity of the housing to further facilitate canting of the valve element.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: July 21, 1998
    Assignee: David R. Kipp
    Inventors: Gary S. Werschmidt, Raymond P. Feith, David R. Kipp
  • Patent number: 5564468
    Abstract: The pressure-relief valve (10) has a valve member (18), which interacts with a valve seat (17). The valve member (18) is forced with a certain pretensioning against the valve seat, which pretensioning is applied by way of a diaphragm (21), either directly by this or by virtue of an additional spring means. Whenever a predefined maximum pressure is exceeded, the diaphragm (21) comes to bear against a stop face (26). Due to the free guidance of the valve member (18) tight, contamination-sensitive gaps are avoided. Although the pressure-relief valve is compact, secure bearing contact of the valve member against the seat is nevertheless ensured (FIG. 1).
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: October 15, 1996
    Assignee: Robert Bosch GmbH
    Inventor: Martin Mueller
  • Patent number: 5535785
    Abstract: A Luer-activated valve constructed of a single-piece valve element with integral biasing base and ventilated riser disposed within a valve housing providing a valve seat and buttress for the biasing base.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: July 16, 1996
    Assignee: Nypro, Inc.
    Inventors: Robert W. Werge, Peter N. Kotsifas
  • Patent number: 5447257
    Abstract: A compression spring is formed of elastic material in a shape resembling a trumpet horn. Novel valve structures incorporate the trumpet horn spring as a component, the latter of which serves therein to make the valve self restoring and also to provide a fluid seal. One valve is principally applied to dispense pressurized fluid and the other is a simple gravity fed beverage tap.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: September 5, 1995
    Inventor: Richard C. G. Dark
  • Patent number: 5323807
    Abstract: A check valve having a reduced or zero pressure drop and more particularly such a valve in combination with a spray nozzle. The check valve includes a sealed gas chamber which has within it a closed-cell foam element which insures that some gas remains in the chamber even if the primary seal fails. The new valve/nozzle combination allows valve operating pressure to be set very close to nozzle operation pressure which allows the nozzle to achieve full spray more quickly at start-up and a more immediate cessation of flow at shut off.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: June 28, 1994
    Assignee: Delavan Inc.
    Inventors: James B. Gauld, William D. Fralick, Robert M. Patrick
  • Patent number: 5299718
    Abstract: The invention comprises a reusable closure for temporarily sealing a container to prevent escape of liquid and gas from the container with the closure having a molded, one-piece housing having internal threads for securing the housing to a container and a spout for discharging materials therefrom and an integral tapered sealing ring to prevent materials from escaping from the housing with the housing including a frusto-conical seat for engaging a valve stem with flared skirt for temporarily sealing liquid and gas within the container and a resilient push top, located on top of the housing for finger access by the user with the valve stem connected to the underside of the push top, valve stem axially displaceable to permit sealing and resealing of the skirt against the frusto-conical seat in the housing and the resilient push top providing a restoring force to return the valve stem and skirt to a closed condition where the fluid pressures within the container coact with the skirt to prevent escape of liquids o
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: April 5, 1994
    Inventor: Roy P. Shwery
  • Patent number: 5288214
    Abstract: A micropump comprises a housing for defining a pump chamber, an inlet valve disposed in an inlet flow passage, a outlet valve disposed in a outlet flow passage, and an actuator for changing a volume of the pump chamber. The actuator is formed of a thermo-responsive polymer gel material. Fluid is supplied and fed by heating and cooling the actuator.A micropump comprises a pump body member for defining a tank chamber holding liquid, a liquid inlet portion, a liquid outlet portion for discharging the liquid medium in the tank chamber, a liquid outlet portion for discharging the liquid medium in the tank chamber, and an actuator, for reducing a volume of the tank chamber. The actuator is formed of a liquid-absorptive polymer gel.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: February 22, 1994
    Assignees: Toshio Fukuda, Nippon Densan Corporation
    Inventors: Toshio Fukuda, Shinobu Hattori, Shigenobu Nagamori
  • Patent number: 5285931
    Abstract: A pressure capsule for a spray can includes a housing with a chamber disposed therein and a valve mounted within a wall of the housing, the valve is capable of being moved into an open and a closed position such that the valve is moved into the closed position when (1) the pressure capsule is placed in an atmospheric environment and (2) the pressure capsule is placed in a spray can and subjected to a pressure equal to or greater than the operating pressure of the spray can.
    Type: Grant
    Filed: February 1, 1991
    Date of Patent: February 15, 1994
    Assignee: Jaico C.V., cooperatieve vennootschap
    Inventor: Vandoninck Alfons
  • Patent number: 5285805
    Abstract: A stretch valve which achieves precise control of fluid flow rates through the use of a cylindrical elastomeric valve element. This elastomer element is installed within the cylindrical flow path of a valve body. The flow path has a diameter that is slightly smaller than that of the elastomer element, which is therefore constrained within the flow path. Longitudinal stretching of the elastomer element causes the diameter of the elastomer element to decrease. As a result, a flow path is opened. The further the elastomer element is stretched, the larger is the fluid path that is created. Therefore, precise control of the fluid flow rate is made possible.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: February 15, 1994
    Assignee: General Valve Corporation
    Inventor: George N. Proper
  • Patent number: 5275309
    Abstract: An apparatus is disclosed for an improved one-way valve comprising a base for mounting in a chamber with a valve surface engaging with a sealing surface to close an input aperture of the chamber. A flexible web is interposed between the base and the valve surface for resiliently biasing the valve surface into engagement with the sealing surface thereby closing the input aperture. When a fluid pressure from the input aperture exceeds the resilient bias of the flexible web, the valve surface is displaced from the sealing surface for opening the input aperture to permit the flow of the liquid from the input aperture through the chamber into an output aperture. Upon a sufficient fluid pressure within the chamber, the valve surface engages with the sealing surface for closing the input aperture to inhibit the flow of fluid from the chamber into the input aperture.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: January 4, 1994
    Assignee: Lykes Pasco, Inc.
    Inventors: Richard D. Baron, Malcolm C. Smith, Carl R. Spoeth, Jr., Valdemiro M. Quadros
  • Patent number: 5215522
    Abstract: A reliable, contamination-resistant, single-use, disposable, medical, non-ventilating, aspirating device and method. The device releasibly connects to and aligns with an indwelling endotracheal tube to accommodate advancing of an aspirating catheter tube of the device by manual manipulation through a sterile, flexible envelope and selective evacuation of lung secretions through a closed and sterile two-position, normally-closed, manually-operable valve at the proximal end of the device, while simultaneously accommodating voluntarily respiration by the patient.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: June 1, 1993
    Assignee: Ballard Medical Products
    Inventors: Larry E. Page, Darrel Palmer
  • Patent number: 5017100
    Abstract: A combined and integral pump and check valve combination is disclosed herein for the control of fluid flow through a fluid pump portion having an inlet port leading to a gland cavity occupied by a movable sealing element yieldably held in position closing or sealing the inlet port by a self-biasing member such as an open-cell foam material. A retaining ring used during the assembly procedure is disposed between the edge marginal regions of the self-biasing member and the movable sealing element which may function to stabilize the element. A sealed retaining plate is attached to the pump supporting the self-biasing member and the movable element combination and further defines an outlet port or duct on the side of the movable element opposite to its side which is adjacent to the inlet port.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: May 21, 1991
    Inventor: Edward J. Arkans
  • Patent number: 4921017
    Abstract: A check valve comprises a valve body and a plurality of blades--all made of plastics and integral with one another. The blades extend straight in the axial direction of the valve body. The blades undergo elastic deformation when pushed onto a tapered inner surface of a stopper at their free ends, thereby biasing the valve body onto a valve seat.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: May 1, 1990
    Inventor: Atsushi Tada
  • Patent number: 4908018
    Abstract: Apparatus including a manifold and improved check valves for selectively injecting supplemental fluids into a closed IV line extending from a source of saline solution to a patient during an operation. Also disclosed are a plurality of connected manifolds and a device to secure the apparatus in location for easy administration of the supplemental fluids to the IV line.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: March 13, 1990
    Inventor: John Thomsen
  • Patent number: 4856554
    Abstract: A high flow vacuum check valve incorporates a plurality of rubber dampening feet located on the sealing bead side of the valve poppet. The feet extend axially slightly beyond the sealing surface of the sealing bead so as to have an axial compression interference, the feet first engaging the valve seat as the valve poppet moves from its open position toward its closed position, and then compressing as the valve poppet continues its movement until the valve is fully closed with the sealing bead in full sealing engagement with the valve seat. This interference compression causes the feet to perform as rate changing springs so long as they are compressed to any extent, dampening axial movements of the valve poppet, and also act as stabilizing members on the valve poppet in the lateral plane. The feet may also be constructed with tiers which also contribute to the stability of the valve poppet.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: August 15, 1989
    Assignee: General Motors Corporation
    Inventors: Donald L. Heffner, Dennis G. Merical, David A. Homan
  • Patent number: 4853160
    Abstract: A carburetor including a valve apparatus comprising a wall defining a chamber having an axis and having therein an inlet communicating with the chamber and an outlet communicable with the chamber and having a valve seat, a valve member having two opposite ends and a variable length in the direction of the axis which decreases only when at least a predetermined force is applied to the valve member in the direction of the axis, the wall supporting the valve member and being threaded so as to allow movement of the valve member along the axis and into and out of sealing engagement with the valve seat, the wall having a step extending into the chamber and engageable with the valve member, the step limiting the movement of one end of the valve member towards the valve seat.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: August 1, 1989
    Assignee: Outboard Marine Corporation
    Inventor: LeRoy T. Wood
  • Patent number: 4828126
    Abstract: The baby bottle according to the invention has identically threaded openings in each end to accept interchangeable screw-on fixtures. One fixture contains a nipple and the second fixture contains a spring-loaded valve. The valve includes a central channel connected to air channels for supplying air to the base of the bottle. The valve is recessed into the bottle to avoid inadvertent opening or breakage when the valve is dropped.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: May 9, 1989
    Inventor: Mark T. Vincinguerra
  • Patent number: 4798226
    Abstract: A charging valve consisting of a valve sleeve and a valve stem fixed in the interior thereof comprises a valve which acts by compression and tension, the tension or compression being exerted by resilient parts of the valve stem adjacent to both valves.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: January 17, 1989
    Assignee: Boehringer Ingelheim KG
    Inventor: Helmut Struth
  • Patent number: 4794943
    Abstract: A valve assembly (10) for controlling high pressure gas with low controlling gas pressures. The assembly includes a valve housing (12) having a cavity (22), an inlet port (26) and two outlet ports (28, 30). Mounted within the housing in communication with each outlet port are tubular members (38), each having a closed end (38.3) and an aperture (42) in a smooth cylindrical sidewall (38.2). A wobble bar (50) within the cavity is associated with a rubber-like sheet of material (54), which sheet has two sealing portions (56.2, 56.4) draped over the apertures. A very soft sponge-like resilient block (56) normally holds the sealing portions against the apertures to cause the apertures to be sealed. Actuating structure causes the wobble bar to be moved from a normal position to an operative position, an end of the wobble bar bearing down upon another portion of the rubber-like sheet of material to cause an adjacent sealing portion to peel away from the aperture to permit flow through the aperture.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: January 3, 1989
    Assignee: Figgie International Inc.
    Inventor: Reno L. Vicenzi
  • Patent number: 4773571
    Abstract: A package (10) for dispensing a fluid (26) in the package under gas pressure has a biaxially oriented polyethelene terepthalate bottle (12) with a neck (14). A dispensing head (22) is attached to the neck (14). A normally closed valve (16) is mounted in the neck and has a housing (50) sealed to the inside surface of the neck (14). The housing (50) has a syphon flange (54). An integral structure (56) having a spring (58) at one end and a poppet (60) at a second end rests on the syphon flange (54). The housing has an opening (48) above the syphon flange 54). The integral structure (56) extends between the syphon flange (54) and the opening (48). The integral structure (56) is dimensioned so that the spring (58) is compressed to bias the poppet end of the integral structure (56) into sealing engagment around the opening (48). The dispensing head (22) has an integral diaphragm (42) and rods (52) and (46) extending above and below the diaphragm (42).
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: September 27, 1988
    Assignee: McKesson Corporation
    Inventors: Richard J. Hagan, John J. McIntyre
  • Patent number: 4723694
    Abstract: A fluid dispensing valve mechanism including a valve body member having an annular seat portion which is contacted by the bushing portion of the shaft-bushing member to effect a seal. The shaft is interposed between the bushing and a contact point on a tower assembly, the latter held in fixed relationship to the valve body. The shaft, at least, is made from elastomeric material; and it is bowed off the axis between the center of the annular seat portion and the contact point on the tower assembly, when in position. This results in a positive seal between the bushing member and the annular seat. When the bushing member is displaced axially to dispense the fluid, the shaft member bows even further. The hysteresis effect inherent in the elastomeric shaft returns the bushing member to its contact position with the annular seat.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: February 9, 1988
    Assignee: Marpac Industries, Inc.
    Inventor: Donald J. Sykes
  • Patent number: 4681132
    Abstract: A check valve is disclosed having a preset cracking pressure. The check valve comprises a valve element reciprocatably positioned within a valve body, both the valve body and the valve element including valve seats which seal together when the valve element is urged forwardly within the valve body. A plug is positioned within the rear of the valve body to constantly urge the valve element forwardly thereby defining a cracking pressure necessary to unseat the valve seats allowing the flow of fluid through the valve body.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: July 21, 1987
    Assignee: Halkey-Roberts Corporation
    Inventor: George E. Lardner
  • Patent number: 4681139
    Abstract: The disclosure is of a ball check valve comprising a valve body with a flow passageway completely through it. The flow passageway is counterbored at one end to form a conical seat and at the other end to form a radial shoulder. The valve member comprises an integral ball and stem of an elastomer. The stem is inserted through the valve passageway and stretched to function in the nature of a tension spring, with lateral extensions on the stem seated against the radial shoulder of the valve body.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: July 21, 1987
    Assignee: Jandy Industries
    Inventor: Ralph A. Falconer
  • Patent number: 4597511
    Abstract: An insertable, integrally molded, one-piece valve assembly for use in the intake bore of the pump of a liquid dispensing device has a body portion and a top portion which is spaced from the body portion by resilient links. The body portion is pressed into the bore a distance determined by an external stop area, and has a flow passage in which a valve seat is located. The top portion is formed to fit loosely in the bore and abuts against an internal stop area which prevents further inward movement. A compression member extends between the top portion and the body portion and has a valve plug molded on the end which engages the valve seat in normally closed valve relation.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: July 1, 1986
    Assignee: AFA Consolidated Corporation
    Inventor: Anthony Licari
  • Patent number: 4595172
    Abstract: A valve especially designed for use in a prosthetic device such as an artificial limb wherein the limb stump is mounted within a mating socket provided by the prosthetic device and is firmly secured therein by vacuum sealing, the valve being is connected to vent the lower portion of the prosthesis socket when manually actuated. The valve includes a central core section of elastomeric material which is formed with a passageway therethrough for venting the prosthesis cavity and which is formed with an enlarged valve chamber and a valve set facing away from the prosthesis cavity. A valve member is mounted in the chamber and is moveable to and from the set to provide sealed and vented positions respectively. The movement of the valve is controlled by a finger engaging button which is in turn biased by elastomeric nodules to move the valve member to its seat thereby sealing the prosthesis chamber.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: June 17, 1986
    Inventor: Gene Henderson
  • Patent number: 4583925
    Abstract: A suction pump which includes a valving member including a one way check valve, a cylinder and sliding cup seal connected to said check valve so that a negative pressure can be developed by the pump. The valving member includes a valving seat, a valving ball, and a plurality of biasing leaflets. The valving body less the ball is preferably formed as an integral elastomeric body. The seal makes a sliding seal in the direction of evacuating movement, and deflects to permit air to by-pass it in the other direction.
    Type: Grant
    Filed: October 3, 1984
    Date of Patent: April 22, 1986
    Assignee: Irrometer Company, Inc.
    Inventor: Alfred J. Hawkins
  • Patent number: 4557290
    Abstract: A safety valve designed for relieving pressure in a mine support jack. A washer and check valve are positioned in a counterbore located on the front surface of a resilient gasket member. A leg extends from the rear surface of the resilient gasket and extends through a rear chamber to support the check valve in a position sealing the outlet port. The rear chamber is filled with pressurized gas to form a gas cushion. The end of the leg is positioned to seal an inflation orifice.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: December 10, 1985
    Assignee: Bennes Marrel
    Inventors: Roger Chanal, Daniel Cotte