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| Number | Title | Issue Date |
| 8079385 | Valve assembly The present invention is directed to a pressure-responsive valve assembly which functions in the nature of a check valve to control fluid flow across the assembly. The assembly includes a valve body which defines first and second internal flow passages, and includes... | 12/20/2011 |
| 7721763 | Adjustable pressure relief valve A one-way flow valve is provided wherein the one-way flow valve may comprise a first section and a second section of a housing. A valve member may be disposed between the first and second sections of the housing that permit fluid flow through one direction of the on... | 05/25/2010 |
| 7673653 | Check valve A check valve is provided, including a first hose connector housing defining an entry passage extending into an entry space at least partially defined by an annular valve seat, a second hose connector housing coupled with the first hose connector housing and definin... | 03/09/2010 |
| 7431050 | Liquid delivery device A fluid delivery device is provided which comprises a microchannel device for cutting out a certain amount of a sample from a micorochannel by controlling a valve opening. The fluid delivery device has a valve for controlling a flow of a fluid, comprising a flow cha... | 10/07/2008 |
| 7392828 | Insertion part for inserting into a gas or liquid line An insertion part is provided in the form of a back-flow preventer and which can be inserted in a gas or liquid line. An insertion part is also provided that can be inserted into a gas or liquid line in the form of a flow regulator. The insertion parts are character... | 07/01/2008 |
| 7389788 | Low pressure measurement devices in high pressure environments The present invention presents various novel approaches to solving the problems inherent in measuring biological pressures in high pressure systems. Thus, to protect a pressure transducer exposed to fluid flows at higher pressures than its overpressure rating, a nov... | 06/24/2008 |
| 7370645 | Variable stiffness flow control valve A flow control valve is provided. According to one aspect of this disclosure, the flow control valve includes a valve element and a support element. The valve element is configured to deflect responsive to a change in pressure difference across the valve element. Th... | 05/13/2008 |
| 7331715 | Valve element Provided is a valve element for venting fluids, such as gas or liquids, entrapped in a packaging enclosure. The valve element includes a base element having an aperture disposed through it and a membrane having a protruding raised portion. The membrane is attached t... | 02/19/2008 |
| 7326187 | Fluid control device A fluid control device is characterized in that the device is structured of a hollow first fluid path (21) and second fluid path (22), a housing portion (1) formed between the first fluid path and the second fluid path and having a hollow portio... | 02/05/2008 |
| 7302962 | Vehicle pressure relief valve having peripherally secured flaps and method of manufacturing the same A pressure relief valve (12) for relieving air pressure from a passenger compartment (14) of a vehicle (10) includes a base (18) having a peripheral portion (30). A central opening (42) extends through the peripheral portion... | 12/04/2007 |
| 7302971 | Umbrella valve and assembly An umbrella valve includes an umbrella-valve body having a stem, a flexible umbrella, and a flange. The umbrella and the flange are each attached to, and extend radially outward from, the stem. The flange has at least one fluid passage. The umbrella valve can be pla... | 12/04/2007 |
| 7291134 | Medical connector A needleless connector for adding medication to a parenteral fluid is provided. The needleless connector comprises a connector adapted to receive a syringe and having a check valve to seal the port in place of a puncture pad. The check valve comprises a resilient di... | 11/06/2007 |
| 7287545 | Sanitary check valve A check valve adapted for mounting between any flanges and specifically between sanitary flanges in a piping system, the check valve comprising a stationary portion and a flexible portion; the single-piece rigid stationary portion including and supporting a valve se... | 10/30/2007 |
| 7284572 | Valve A plate valve, especially for diaphragm pumps, having a valve plate (8), a valve seat (15), and a valve chamber bounded by a valve housing is provided, with the valve plate being held at the edges thereof. The valve plate (8) is preset under ten... | 10/23/2007 |
| 7243683 | Overpressure valve for the content of a package An overpressure valve for a packaging container is disposed on the inside of the packaging material comprising the packaging container. The overpressure valve comprises a base plate, a diaphragm, and a connecting element. The overpressure valve is relatively simple ... | 07/17/2007 |
| 7240693 | Pressure regulated solenoid valve having integral mounting structure A regulator valve for managing a fluid in an appliance is provided. The regulator valve comprises a housing having an inlet and an outlet, a filter, a pressure regulator, a solenoid valve, a mounting structure, and a locking tab depending from the mounting structure... | 07/10/2007 |
| 7237619 | Automatic fire sprinkler having a variable orifice An automatic fire sprinkler having a variable orifice, the sprinkler having a variable orifice associated with the automatic fire sprinkler, and wherein the orifice is responsive to the water inlet pressure of the sprinkler. ... | 07/03/2007 |
| 7182276 | Cleaning device of vehicle lamp A check valve of a cleaning device of a vehicle lamp is provided with a cleaning liquid influx portion, a valve disposing portion, and a cleaning liquid efflux portion which are arranged in series in a sliding direction of the piston. A valve body is disposed in the... | 02/27/2007 |
| 7178550 | Pressure control valve for a packaging container and device for attaching the pressure control valve to a material web A pressure control valve for a packaging container includes a supporting body having a recess a is disposed in an axially captive fashion either by means of gluing or by means of securing projections A device for attaching the pressure control valve to a material we... | 02/20/2007 |
| 7174739 | Air chiller unit The invention provides an improved drain valve for dew condensation in an air chiller unit mounted on an aircraft. The drain valve 160 attached to a drain of a drain pan in an air chiller unit is equipped with a valve seat member 162 having an opening ... | 02/13/2007 |
| 7137405 | Low pressure check valve A check valve for preventing backflow of media including a valve movably coupled to a carrier body, the valve including a flexible membrane disposed therein such that the flexible membrane flexibly engages an aperture in the carrier body to prevent backflow of media... | 11/21/2006 |
| 7125230 | Valve with operation parameter set at assembly and pump using same A valve is assembled by telescoping a first body component relative to a second body component until reaching a relative position that corresponds to a predetermined valve operation parameter, such as a valve opening pressure. The first body component is then fixed ... | 10/24/2006 |
| 7115118 | Implantable pressure-activated micro-valve An implantable pressure-activated microvalve is disclosed. The valve includes a chamber that can be coupled to an external reservoir. A deflectable diaphragm is fluidically coupled to the chamber and arranged such that pressure of an in vivo fluid will bear against ... | 10/03/2006 |
| 7108361 | Ink tank An ink tank capable of a stable ink supply to a print head uses a simple valve construction. In one preferred example, an ink path is closed by a lip portion of a valve rubber engaging a flange, and an angle formed by an inner surface of an opening in the lip portio... | 09/19/2006 |
| 7074443 | Vented can overcap Packaging for a can containing ground roasted coffee packed under atmospheric pressure and having a flexible peel-off lid which is vented to allow the escape of a buildup of carbon dioxide gases. A spacing structure prevents the vent valve in the lid from being clos... | 07/11/2006 |
| 7059327 | Tracheostoma valve A tracheostoma valve is described for use within a tracheostoma to facilitate speech by use of a vocal prosthesis, which consists of a valve housing defining a valve cavity having an airflow passage therethrough between at least one rearward and at least one forward... | 06/13/2006 |
| 7033134 | Air turbine starter having a force balanced, pressure energized, weighted check valve An air turbine starter is provided that includes a check valve assembly for placement between a first environment, at least a portion of which is at a first pressure (P1), and a second environment, at least a portion of which is at a second pressure (P | 04/25/2006 |
| 7033133 | Air turbine starter having a low differential check valve An air turbine starter is provided that includes a check valve assembly. The check valve assembly comprises a valve body, a valve seat and a valve element. The valve body includes an inlet port, an outlet port, and a flow passage extending therebetween. The valve se... | 04/25/2006 |
| 7011077 | Fuel system and method for managing fuel vapor pressure with a flow-through diaphragm A fuel system and a method of method of managing fuel vapor pressure in the fuel system. The fuel system a fuel tank having a headspace, a fuel vapor collection canister in fluid communication with the headspace, a purge valve, and a fuel vapor pressure management a... | 03/14/2006 |
| 7007715 | Pressure release valve A shaft part is coaxially provided within a pressure release port provided in a sealing plate sealed to an opening portion of a case for a condenser or a battery, a valve body closely fitted and fixed within the pressure release port has a seal lip which is directed... | 03/07/2006 |
| 6986568 | Valve unit in ink supply channel of ink-jet recording apparatus, ink cartridge using the valve unit, ink supply needle and method of producing the valve unit A valve unit in an ink supply channel of an ink-jet recording apparatus, the ink supply channel having an upstream side and a downstream side, the valve unit comprising a diaphragm valve having a thin elastic diaphragm operating in response to pressure difference be... | 01/17/2006 |
| 6968976 | Valve mechanism for tube-type fluid container A valve mechanism adapted for a mouth portion of a tube-type fluid container includes: a valve seat portion having an opening through which a fluid passes; a disc-shaped valve portion; and an annular fixing portion for affixing the valve portion to the valve seat po... | 11/29/2005 |
| 6962158 | Hair dye applicator A dye applicator that has an elongated container that doubles as a handle and a comb assembly with an internal longitudinal cavity along its spine. The container is removably connected to the comb assembly to permit the dye to pass through the cavity and to the long... | 11/08/2005 |
| 6953027 | Flow-through diaphragm for a fuel vapor pressure management apparatus A fuel vapor pressure management apparatus for a fuel system performs leak detection on a headspace of the fuel system, performs excess negative pressure relief of the headspace, and performs excess positive pressure relief of the headspace. The fuel vapor pressure ... | 10/11/2005 |
| 6948521 | Check valve device A check valve device includes a valve section of a valve plug arranged in a fluid passage of a body, the valve plug being in a valve-opened state when separated from a seat section, and the valve plug being in a valve-closed state when seated on the seat section, an... | 09/27/2005 |
| 6948918 | Membrane pump with stretchable pump membrane The invention relates to membrane pumps for delivering liquids. More specifically, a pump is provided having a pump housing with a pump cavity formed between first and second wall portions thereof, and an pump membrane pump membrane having first and second membrane ... | 09/27/2005 |
| 6945277 | Underpressure valve The invention concerns an underpressure valve with a multi-part housing and a disc-like closing body which has at least one opening, and with an opening-free section disposed in alignment with the flow channel of the housing. ... | 09/20/2005 |
| 6916089 | Ink cartridge for ink jet printer An ink cartridge for an ink jet printer is provided with a container having at least a first wall. An ink supply port is formed through the first wall for supplying ink to the exterior of the container. An ink chamber and an ink supply chamber are formed by a membra... | 07/12/2005 |
| 6848471 | In-line check valve A check valve is placed in a conduit for pressurized fluids, and comprises a cylindrical external housing having inlet and outlet ends, a cylindrical internal spigot, and an elastomeric sleeve fitted over the spigot. It is sealed at the second end, and has a plurali... | 02/01/2005 |
| 6764286 | Piston pump with pump inlet check valve A piston pump comprises cylinder attached within a cavity of a pump housing. An outlet check valve seat is defined about an outlet of the cylinder. A piston is slidably received in a bore of the cylinder and has a first passageway formed therein. A cylinder head enc... | 07/20/2004 |
