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| Number | Title | Issue Date |
| 7757704 | Coupling assembly with a core unit therein A coupling assembly includes a female unit and a male unit which is removably connected with the female unit. A valve unit is located in the female unit and includes a core with two flexible disks on two ends thereof. A flange extends radially outward from a lower e... | 07/20/2010 |
| 7640945 | Oneway valve for automatically inflatable air cushion A oneway valve for an automatically inflatable air cushion includes a valve body having an air inlet port and an air outlet port, a valve seat mounted in the valve body and formed with a plurality of conducting holes connected to the air inlet port and the air outle... | 01/05/2010 |
| 7237573 | High pressure, low flow rate fluid flow control An adjustable high pressure, low flow metering valve provides a sleeve extending about a restrictor shaft, the sleeve having a narrow helical groove formed in the inside diameter. A restrictor shaft within the sleeve encloses the groove and forms a sealed helical fl... | 07/03/2007 |
| 7222637 | Connector equipped with a valve A connector housing of a valve-equipped connector is integrally formed from a tube connection section at a first axial side; a pipe insertion section at a second axial side; and a valve housing section between the tube connection section and the pipe insertion secti... | 05/29/2007 |
| 7220273 | Control of airflow to an inflatable thermal device Airflow provided through an air hose to the inlet port of an inflatable thermal device is controlled by a mechanical device disposed at an end of the air hose that is coupled to the inlet port. In response to coupling the end of the air hose to the inlet port, the m... | 05/22/2007 |
| 7185671 | Angled dual check valve Poppet valve installation or removal is simplified through the use of a unitary poppet assembly that may be accurately placed into a valve body through an access opening and wherein the poppet is slidably mounted in a stem in an insert while being permanently affixe... | 03/06/2007 |
| 7033148 | Electromagnetic pump An electromagnetic micropump for pumping small volumes of liquids and gases comprises a magnetic actuator assembly, a flexible membrane and a housing defining a chamber and a plurality of valves. The magnetic actuator assembly comprises a coil and a permanent magnet... | 04/25/2006 |
| 7028709 | One-way valve with poppet member The valve includes a supply portion, a delivery portion and an intermediate fluid chamber; a poppet member is positioned within the fluid chamber and is adapted to move within the chamber, the poppet including a conical seating surface and a rim portion, the rim por... | 04/18/2006 |
| 7017611 | One-piece manifold for a reverse osmosis system A one-piece manifold for a reverse osmosis system includes a filter configured to receive water from a water port and a membrane configured to receive filtered water via a first conduit. The membrane is also configured to send permeate water to a reverse osmosis tan... | 03/28/2006 |
| 6932109 | Scavenger valve assembly A poppet scavenger valve includes multiple cages for multiple poppets, permitting better control of the spacing of the assembly, facilitating maintenance and permitting better fluid flow through the cage structure. A spacer or lift plate may be positioned between th... | 08/23/2005 |
| 6789567 | Bi-directional constant flow device A bi-directional flow-control device includes a housing defining a flow passage and first and second orifices installed in the passage, each orifice being tubular and having a seat, each seat having a plurality of circumferentially spaced flow-control channels, the ... | 09/14/2004 |
| 6668858 | Check valve A check valve is provided having a valve body and a sealing assembly within the valve body. The sealing assembly is biased, via a biasing force, in a seated position against a valve seat adjacent or surrounding an inlet port of the valve body. The sealing... | 12/30/2003 |
| 6341618 | Plumbing stop valve and method of use A method for installing plumbing fixtures in a multi-story building having a waste stack includes a stop valve between the waste output of each fixture and the waste stack, the valve allowing the waste water to flow from the fixture toward the waste stack... | 01/29/2002 |
| 6247489 | Check valve A valve is disclosed. The valve has a housing that defines a central area and has at least two flow ports therethrough. A cover is provided that has a flapper assembly pivotally attached thereto. The cover is removably attachable to the housing in a plura... | 06/19/2001 |
| 6227231 | Pressure/flow rate control valve Disclosed is a pressure/flow rate control valve comprising a pressure-adjusting section having a valve plug for reducing the pressure of a pressure fluid flowing through a clearance between a hole and itself, a stem which is displaceable integrally with t... | 05/08/2001 |
| 5921271 | Safety shut-off valve for high pressure bottles A safety shut-off having a spring loaded ball which moves into engagement with a valve seat in response to excess gas flow. Engagement of the ball with the valve seat shuts off gas flow. Excessive gas flow is generally encountered when a catastrophic brea... | 07/13/1999 |
| 5918623 | Starting valve The invention relates to a starting valve for progressive build-up of pressure in an installation through which pressure medium flows, comprising a housing with a first opening for coupling to a first component of the installation and a second opening for... | 07/06/1999 |
| 5671769 | Swing check valve and method for repairing same A swing check valve, which is adapted for automatically inhibiting back flow of fluid from an outlet thereof to an inlet thereof, includes a clapper member and a housing. The housing has a first body portion, which includes its own valve seat and its own ... | 09/30/1997 |
| 5507630 | Quick release interchangeable valve arrangement for slurry pump systems A dual inline double acting plunger arrangement is particularly adapted for pumping thick slurries and includes a hollow cylinder divided into two closed chambers by a partition. A first plunger is disposed in a first chamber and a second plunger is dispo... | 04/16/1996 |
| 5004005 | Combination valve A combination valve formed of a valve body having a flow passageway therethrough and an opening in the top communicating with the passageway. A rotating member is received in the body, within the flow passageway, the rotating member having a flow passagew... | 04/02/1991 |
| 4989631 | Valve device with control sleeve and check valve A full opening sleeve valve device with check valve for controlling fluid flow through a line pipe or the like. The valve device has a housing, and a flow passageway extends through the housing and terminates at opposed ends thereof. The opposed ends of t... | 02/05/1991 |
| 4969484 | Reversible flow check valve A reversible flow check valve includes a valve body and a clapper extending across a flow passageway. A mechanism is provided to retract the clapper to permit essentially unobstructed fluid flow through the flow passageway. Further, mechanisms are provide... | 11/13/1990 |
| 4928725 | Combination plug and two-way check valve A combination plug and two-way check valve formed of a valve body having a flow passageway therethrough, the body having an opening in the top communicating with the passageway, first and second valve seats in the body, a ball member rotatably received in... | 05/29/1990 |
| 4846218 | Check valve for liquid chromatography pumps A check valve with a disposable filter is provided for regulating the flow of a mobilizing liquid in a pump of a liquid chromatograph. The valve assembly includes two seated ball valve subassemblies securely housed in a casing to define a liquid flow path... | 07/11/1989 |
| 4770413 | Breathing exercise device A breathing exercise device is formed of a tubular body with a mouthpiece at its proximal end, a resistor sleeve coaxial with the body tube and having a number of resistance openings which align with a body tube opening, and a selective one way flap valve... | 09/13/1988 |
| 4759198 | Ventilator for refrigerator A ventilator for a refrigerator which comprises a first frame inserted into a ventilation hole provided in a wall panel of a refrigerator, a second frame inserted into the ventilation hole from the outside of the refrigerator, and a mounting base provided... | 07/26/1988 |
| 4708084 | System for distributing water flow between a reservoir and a water source A water distribution system for directing water flow between a live well in a fishing boat and a water source, such as a lake. The water distribution system includes a flow directing valve which has two operating conditions. In the first operating conditi... | 11/24/1987 |
| 4601467 | Valve module and apparatus therefor This invention relates to a new valve module which is particularly suitable for use in an exercise device. The valve module comprises a housing, at least one entrance conduit to allow air to enter the valve module, at least one exit conduit to allow air t... | 07/22/1986 |
| 4589441 | System for controlling liquid flow A system for controlling the flow of liquid between a reservoir and a liquid source. Passageways are provided between the reservoir and the source for the flow of liquid therebetween. Selectively operable valves, including automatic check valves, are disc... | 05/20/1986 |
| 4537213 | Double flapper check valve A housing is divided into two chambers. A tube connects the two chambers. The end of the tube forms a valve seat on each end. The valve seat in one chamber angles upward and the valve seat in the opposite chamber angles downward. A flapper valve is attach... | 08/27/1985 |
| 4535876 | Shock absorber construction A shock absorber which can be used in tension or compression and which is adjustable in either mode of operation including a casing having first and second ends, a piston rod extending through the first end and having a piston head mounted thereon within ... | 08/20/1985 |
| 4417861 | Cell culture pumping system A low trauma, reversible flow pumping system is disclosed which is useful for transfer of biological fluids containing fragile components such as cells. The pumping system comprises a length of collapsible and flexible tubing in fluid communication at eac... | 11/29/1983 |
| 4296772 | Non-return valve A non-return valve has a housing being symmetric with respect to a plane perpendicular to the direction of flow, and having facing inlet and outlet openings with surrounding identical valve seats, and identical bearing means adjacent each opening for hold... | 10/27/1981 |
| 4257443 | Check valve A poppet located in the opening of an annular seat member for use in a body for forming a check valve. The poppet has a resilient seal for engaging a seat formed in the seat member for forming a seal therebetween and which also prevents removal of the pop... | 03/24/1981 |
| 4183373 | Fluid pressure-operated systems An interconnecting unit for reliably establishing compact and readily rearrangeable connections between the components of a fluid pressure-operated system comprises a matrix block with primary and secondary sets of non-intersecting passages adapted for co... | 01/15/1980 |
| 4169578 | Rotary valve with spring biased valve member An improved rotary valve comprising a valve body having a flow passage extending therethrough and a rotary valve stem journaled in said valve body transversely intersecting the flow passage. The valve stem includes at least one spring biased spherical val... | 10/02/1979 |
| 4082108 | Valve block A valve block assembly for use in glassware forming machines is disclosed. The valve block has at least two rows of valve stations arranged parallel to one another. An air supply manifold and an air exhaust manifold communicates with each row of valve sta... | 04/04/1978 |
| 4072291 | Rotary valve with spring biased valve member An improved rotary valve comprising a valve body having a flow passage extending therethrough and a rotary valve stem journaled in said valve body transversely intersecting the flow passage. The valve stem includes at least one spring biased spherical val... | 02/07/1978 |
| 4062378 | Easily disassembled, one-way check valve A check valve for a fluid line which can be easily disassembled and assembled for cleaning, inspection, or repair. The valve finds particular utility in cleaning-in-place equipment such as dairy pipe lines and in which the valves and other components must... | 12/13/1977 |
