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| Number | Title | Issue Date |
| 7744060 | Fail-safe pneumatically actuated valve with fast time response and adjustable conductance Apparatus and method for fail-safe high-speed-pneumatic valve is disclosed. Fail-safe dependability is provided by a spring-loaded normally-closed pneumatic actuator. When the spring-loaded actuator is pressurized, the normally closed mechanism is actuated to the va... | 06/29/2010 |
| 7364132 | Sanitary diaphragm valve A sanitary diaphragm valve is provided that includes a generally dome shaped diaphragm having a central boss that can be connected to or driven by a valve actuator. The diaphragm includes an outer peripheral edge and a relatively thin web portion that connects the b... | 04/29/2008 |
| 7232106 | Tilted and stepped diaphragm for control valves A diaphragm operated valve having the diaphragm attached at its lower end to a valve closure plug, and movable therewith, and attached at its upper end to a portion of valve body that forms the pressure cavity. The diaphragm has a stepped portion between its upper a... | 06/19/2007 |
| 7225830 | Fluid control valve A fluid control valve having a spring biased shuttle plunger member which opens or closes fluid flow through a plurality of radially spaced apart fluid passageways disposed between an upstream chamber and downstream chamber in the valve body responsive to a fluid pr... | 06/05/2007 |
| 7156363 | Bathroom flushers with novel sensors and controllers A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl... | 01/02/2007 |
| 7150299 | Assembly and method for containing, receiving and storing fluids and for dispensing gas from a fluid control and gas delivery assembly having an integrated fluid flow restrictor A fluid control and gas delivery assembly and method for containing, receiving and storing hazardous fluids and for dispensing gas comprising a container, a fluid fill path, a gas dispensing path, a first shut-off valve, a pressure reducer, a fluid flow restrictor, ... | 12/19/2006 |
| 7089938 | Pneumatic oxygen conserving device A pneumatic oxygen conserving device uses a portion of gas exiting its main valve to interrupt delivery of the gas. Gas is dispensed upon inhalation and is interrupted by means of suitable pneumatic connections between the device's delivery system and its sensing sy... | 08/15/2006 |
| 7089940 | Balanced valve device and breathing apparatus comprising such valve device A valve device, particularly for a breathing regulator for divers, including an inlet chamber which can be connected to a source of gas under super-atmospheric pressure, and an outlet chamber which is under a regulated pressure. A seating, which is movable under the... | 08/15/2006 |
| 7069941 | Electronic faucets for long-term operation An electronic faucet (10) mounted on a countertop (12) includes a housing, at least one fluid inlet line (24a, 24b) extending into the housing, a fluid outlet (46) from the housing, a solenoid (142, 143) for op... | 07/04/2006 |
| 7013916 | Sub-atmospheric gas delivery method and apparatus An apparatus for containing and delivering hazardous gases at sub-atmospheric pressure from a pressurized container is provided which includes a valve body in sealed communication with an outlet orifice of the pressurized container. The outlet orifice of the pressur... | 03/21/2006 |
| 6886580 | Frost proof valve The present invention relates to a valve assembly for use in below freezing conditions which includes a valve housing with a connection to a supply of fluid, and a primary chamber, and a secondary chamber, and a flexible diaphragm, and an equalisation port, and a sa... | 05/03/2005 |
| 6478044 | Snap-action piloted fill valve A snap-action piloted fill valve for controlling the level in a liquid storage tank, the valve having a float and a weight cup that are adjustably interconnected by an elongated sleeve slidably disposed on a stem extending upwardly from a valve body mount... | 11/12/2002 |
| 6394412 | Controlled valve A hydraulic diaphragm valve comprising a housing, an inlet, an outlet, a diaphragm valve seating between the inlet and the outlet, a sealing diaphragm mounted in the housing and displaceable about the diaphragm valve seating, so as to close and open a flo... | 05/28/2002 |
| 6286533 | Metering valve assembly A metering valve assembly for use in sanitary applications and method of use is disclosed. The metering valve assembly has a relief valve hydraulically controlling a pilot valve covering a water supply inlet. The relief valve is controllably closed by a d... | 09/11/2001 |
| 6263901 | Self cleaning irrigation valve with offset manual on actuator, body/bonnet alignment, and captured screws An irrigation valve comprises a valve housing made from a valve body joined to a valve bonnet by a plurality of attachment screws. The valve body and valve bonnet have an alignment rib received in an alignment notch when the body and bonnet are joined tog... | 07/24/2001 |
| 6254057 | Valve control system A fluid control valve has a valve member which, on closing creates a stagnation zone between the valve member and a surface within the valve. In the stagnation zone fluid pressure is greater than it is in an adjacent constriction zone. This causes the val... | 07/03/2001 |
| 6164313 | Low-high flow rate valve A float operated valve for controlling the rate of flow of water from a pipe carrying water under pressure, to a vessel, comprises a pipe having an end opening of selected diameter and a flange of larger diameter surrounding the pipe. A flexible diaphragm... | 12/26/2000 |
| 6131608 | Water flowrate control device A water flowrate control device, which includes a casing connected to water source means, a holder member mounted inside the casing, a pressure release element mounted in the holder member, a steel ball put in a stepped through hole in the pressure releas... | 10/17/2000 |
| 6079437 | Diaphragm valve with flow control stem air bleed A diaphragm valve includes a valve housing, a diaphragm assembly mounted within the valve housing, a pilot valve coupled to the valve housing and a flow control stem mounted in an upper bonnet of the valve housing. The valve housing has an inlet passage a... | 06/27/2000 |
| 5996608 | Diaphragm valve with filter screen and movable wiper element A diaphragm-type control valve for irrigation systems has an outer clam-shell housing that encloses a vertically reciprocable diaphragm assembly. A primary valve seat inside the housing is engaged and disengaged by a seal on the underside of the diaphragm... | 12/07/1999 |
| 5979482 | Removable captive plunger with contamination protection A diaphragm-type control valve for irrigation systems has a solenoid operated pilot valve assembly. The solenoid includes a housing having a generally cylindrical bore with an open end, an energizeable coil surrounding the bore, a ferrous plunger reciproc... | 11/09/1999 |
| 5979863 | Irrigation control valve and screen A control valve comprises a housing having an inlet for connecting to a source of water and an outlet, a pressure responsive diaphragm valve assembly including a valve disc having a front face and a back face mounted in the passage for engagement with the... | 11/09/1999 |
| 5871156 | Sprinkler with removable valve seat An irrigation sprinkler of the type having an inlet control valve is provided with a removable valve seat formed integrally with an inlet filter screen. The valve seat is positioned to engage a valve head to normally prevent water inflow to a sprinkler ca... | 02/16/1999 |
| 5860631 | Pilot valve for suspension control systems A two-stage pilot valve for suspension control systems. The valve includes an annular pilot member so that fluid discharges in a radial direction, and it is preferable that the valve member is comprised of a resiliently suspended plate. Both the dynamic c... | 01/19/1999 |
| 5853026 | Valve with downstream manual bleed A valve for controlling the flow of a liquid includes a valve seat which is engaged by a selectively operable valve member. A pressure chamber above the valve member contains upstream pressurized fluid in the closed position of the valve. The valve is ope... | 12/29/1998 |
| 5738332 | Flow valve operated by flow transfer means which regulate small flows of control A flow valve operating by pressure differentials and by flow transfer means which regulate small flows of control. This valve is sensitive to small changes of pressure and resistant to great working pressures, having few components of a simple design. The... | 04/14/1998 |
| 5641271 | Float operated pump including diaphragm valve assembly with bleed passage Pump (1) includes a pneumatic valve assembly (98) having a chamber (105) which is supplied by compressed air via an inlet pipe. Included within chamber (105) is a valve (109) with a chamber (111) divided into two separate compartments (112,113) by a plian... | 06/24/1997 |
| 5632465 | Valve assembly A valve assembly having a housing with an inlet passage and an outlet passage communicating with a valve chamber through a substantially hemispherical valve seat; a valve member mounted in the valve chamber of the housing for movement between a closed att... | 05/27/1997 |
| 5421361 | Float operated fill valve A fill valve assembly for a toilet tank or the like includes a riser and a head portion that can be vertically adjusted without removal or disassembly of the valve in order to select a precise tank liquid level. Telescoping conduits in the riser are secur... | 06/06/1995 |
| 5408709 | Shower control assembly A flow control assembly regulates the flow of water from a shower head independently from the normal valving system. A control valve is located upstream of the shower head, as seen in the water flow direction, and is operated by a conveniently located pil... | 04/25/1995 |
| 5318062 | Readily serviceable differential pressure actuated ballcock valve A tank valve for refilling a water tank. A vertical riser has a passage opening through a valve seat in a body. A flow chamber and a discharge chamber are formed around the valve seat. A cap is secured to the body so as to overlay the chambers. The cap ha... | 06/07/1994 |
| 5299774 | Diaphragm controlled irrigation valve with captivated bleed screw A diaphragm controlled irrigation valve (20) is disclosed which includes a captivated relief member (60). The captivation is achieved by a stop (100) which radially extends from the member to abut the valve housing (23).... | 04/05/1994 |
| 5181538 | Multiple stream fluid mixing and dispensing apparatus An improved multiple stream, fluid mixing and dispensing apparatus for automatically regulating flow rate for one or more preset fluid flows including a plural station, fluid flow rate console assembly adapted for cooperating with the standing hydraulic p... | 01/26/1993 |
| 5150732 | Boosted differential pressure-type tank valve A tank valve for maintaining a water lever storage level in a tank. The tank valve includes differential pressure valve workings under control of a pivot member. A float enables the valve to open when resting on the pivot member and opens the valve when i... | 09/29/1992 |
| 5067516 | Valve assembly A pilot-operated, diaphragm-controlled float valve assembly has a primary valve and a pilot valve operated by a float arm, a cavity for the main valve is formed between a split segment casing and is divided by a valve disc centrally mounted upon a flexibl... | 11/26/1991 |
| 5035257 | Toilet tank valve A toilet tank valve having a vertical riser with a collet thread and a plurality of flexible collet fingers. A slider tube is fitted into the riser. It has a plurality of peripheral grooves that can be engaged by the fingers to adjust the elevation of the... | 07/30/1991 |
| 4991625 | Multiple stream fluid mixing and dispensing apparatus An improved multiple stream, fluid mixing and dispensing apparatus for automatically regulating flow rate and temperature for one or more preset fluid flows for connection to domestic water delivery systems including a plural station, fluid flow rate and ... | 02/12/1991 |
| 4987920 | Diaphragm actuated valve assembly A pilot operated, diaphragm actuated fluid valve assembly having an annular main valve seat with a tapered annular surface disposed therearound. A movable diaphragm has a generally flat central main valving surface thereon and an integrally formed annular... | 01/29/1991 |
| 4981155 | Electrically operated valve assembly An electromagnetically actuated, pilot operated valve having a nonmetallic body with a pressure responsive disphragm for opening the main valve and defining, in cooperation with a guide member, a pilot chamber having an armature/pilot valve member movably... | 01/01/1991 |
| 4971104 | Self powered servo actuated backpressure regulating valve A self-powered servo-actuated backpressure regulating valve including a valve housing (1) having an inlet port (2) and an outlet port (3). A valve plate (4) is disposed in the housing (1) and supported by an evacuated chamber (12) defined by a bellows (10... | 11/20/1990 |
