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| Number | Title | Issue Date |
| 8025075 | Self-cleaning low emission bleeder valve type liquid level gauge A self-cleaning bleeder valve comprises an annular housing that is mounted in an opening in a pressure vessel, and a valve member that screws into the housing for movement toward and away from an orifice opening in the housing. The valve member includes a gasket sea... | 09/27/2011 |
| 7357151 | Fluid control devices Improved fluid control devices are provided for metering pressure effectively in environments that may contain solid particles and in which the ambient pressure is subject to change. Such a valve comprises a valve body containing a plunger assembly contacting a firs... | 04/15/2008 |
| 7325781 | Automatic bathroom flushers with modular design A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 02/05/2008 |
| 7290562 | Non-return valve What is disclosed is a non-return valve comprising a sealing piston which is biased against a valve seat in the basic position inside a valve housing, and which is manufactured by a plastics injection molding technique. ... | 11/06/2007 |
| 7255328 | Low friction coatings for dynamically engaging load bearing surfaces A gate valve has a body, the body having a cavity and a flow passage intersecting the cavity. A seat ring is mounted to the body at the intersection of the flow passage and the cavity, the seat ring having an engaging face. A gate in the cavity has an engaging face ... | 08/14/2007 |
| 7188822 | Enclosures for automatic bathroom flushers A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou... | 03/13/2007 |
| 7182096 | Self cleaning metering device for diaphragm style flush valve The self cleaning metering device for a diaphragm of a diaphragm type flush valve comprises a metering cap having a metering orifice therein, a hollow retainer threadedly engaged to the metering cap, the diaphragm being sandwiched therebetween, and a cleaning elemen... | 02/27/2007 |
| 7159731 | Air purge valve and filter pump cover employing same A filter pump cover according to the invention comprises a filter cap, an air purge valve, and a filter cap retainer. An air purge valve according to the invention is comprised of a valve cap, a screw-threaded portion, and a valve stem having one or more outward-fac... | 01/09/2007 |
| 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 |
| 7104522 | Coking-resistant shaft/bushing mechanism for an exhaust gas recirculation valve An exhaust gas recirculation valve assembly including a bushing and pintle shaft sub-assembly having a pintle shaft supported by a sleeve bushing, the contact area between the shaft and bushing being reduced such that coking deposits that form on the remaining conta... | 09/12/2006 |
| 7057104 | Large-radius conduit bodies Large-radius conduit box bodies for connecting electrical or telecommunications conduits have a body defining a chamber with an axial hub at one or both ends and at least one perpendicular hub defining passageways communicating with the chamber. The perpendicular hu... | 06/06/2006 |
| 7051760 | Three-way inline piggable branch valve A multi-port valve device to divert flow of a fluid from a piggable transfer pipe line into a branch pipeline, and simultaneously prevent a line clearing device (known as a pig or cleaning sphere) from flowing with that fluid into the branch pipeline. This device ca... | 05/30/2006 |
| 7044153 | Varnishing installation A varnishing installation includes a varnish line with an inlet end, an outlet end and an auxiliary device. The auxiliary device is connected through a valve arrangement to the varnishing line and the valve arrangement is scrapeable. ... | 05/16/2006 |
| 7007916 | Low flow valve improvement The present invention illustrates an irrigation valve that operates at low flows by providing a guide washer of the valve assembly that prevents diaphragm extrusion. Specifically, the circular channel area of a guide washer of the valve includes spoke-like fins. The... | 03/07/2006 |
| 6997211 | Multiple material valve plug for high temperature operation A valve assembly with a multiple-component valve plug is disclosed. The use of multiple materials in the construction of the valve plug provides different rates of thermal expansion in the axial and radial directions thereby enabling the valve plug to have thermal e... | 02/14/2006 |
| 6997439 | Liquid filling valve The present invention provides a filling valve which affords an excellent sterilization capability and a high maintenance capability. The valve includes a tubular nozzle 4, an operating rod 6 which is fitted in the nozzle 4 so as to be elevatabl... | 02/14/2006 |
| 6976398 | Liquid sample collection system A liquid sample collection system includes a container having an interior reservoir for receiving the liquid sample, and a valve assembly that may be coupled to the container to facilitate collecting the liquid sample, the valve assembly includes a valve housing hav... | 12/20/2005 |
| 6848464 | Lined pipe annular venting device A fluid vent (26) for venting fluid from the annulus between the inner surface of a rigid conduit (20) and the outer surface of a conduit liner (10). The fluid vent (26) consists of a length of rigid conduit (34) containing a multi... | 02/01/2005 |
| 6746233 | Semi-automatic gas pilot orifice clean-out device A semi-automatic gas pilot clean-out device and a gas pilot with the device useful in agricultural brooders and other appliances that utilize a gas pilot as an ignition source. The device has a plunger rod with a clean-out pin attached to one end and a push button a... | 06/08/2004 |
| 6725875 | Valve A directional-control valve is connectable to a first main pipe and to a secondary pipe. The valve includes an upstream port and a downstream port connectable to the first main pipe and having identical diameters. A third connection port is connectable to the second... | 04/27/2004 |
| 6691731 | Corporation stop cleaning device A corporation stop cleaner device includes a T-shaped body having an inlet end, an outlet end, a flushing inlet connection and a flushing outlet connection. The T-shaped body is attached to the fluid inlet of a corporation stop. A removable brush is mount... | 02/17/2004 |
| 6637452 | Valve with self-cleaning trim The seal assembly is disclosed for use with a valve having a trim cage with an inner surface extending along in axis and a plug sized to fit inside the trim cage inner surface, wherein the plug is adapted to move along the axis thereof. A seal ring is att... | 10/28/2003 |
| 6478041 | Filler valve filling flat pouch containers A fill valve assembly for filling a flat bag with an inhomogeneous fluid or viscous product, comprises a valve head of a cross-section dimensioned to fit into the flat bag and having a an outlet for the product and an extension of the outlet, the outlet a... | 11/12/2002 |
| 6332475 | Filling stop valve A stop valve to terminate flow of liquid there through when the level of the liquid reaches a desired level in a container. The stop valve includes a master diaphragm valve (38) to regulate the flow of liquid through the valve and a pilot diaphragm valve ... | 12/25/2001 |
| 6293298 | Water softener valve A water softener valve for controlling water flow to and from a water softener is disclosed that includes a cylindrical shaft extending from said inner surface of a piston chamber that fits into a pressure relief port when the piston is in the service pos... | 09/25/2001 |
| 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 |
| 6199576 | Bi-directional cleanout with backflow preventer The invention is a bi-directional cleanout for pipelines such as sewer pipelines and a bi-directional cleanout with a built in backflow preventer. The backflow preventer is a check valve which allows fluid to flow in one direction, but not in the other di... | 03/13/2001 |
| 6182677 | Cleanout fitting for air conditioner evaporator drains A cleanout fitting for air conditioner evaporator drains facilitates the mechanical cleanout and hydraulic flushing of the entire drain line from an air conditioner evaporator unit, or air handler. The present fitting essentially comprises an asymmetric T... | 02/06/2001 |
| 6131602 | Condensate discharge device A condensate discharge device which prevents metal ions from attaching and depositing on the condensate discharge port surface. An inlet, a condensate discharge port, and an outlet are formed in a valve casing, which valve casing includes an upper casing ... | 10/17/2000 |
| 6062530 | Lift valve with pressure balanced pilot operated valve member A valve device comprising a first fluid port, a second fluid port, a valve seat and a valve member having a control chamber is formed at least in part by the valve member. A first passageway communicates between the control chamber and a first port and a ... | 05/16/2000 |
| 6024114 | Solenoid pilot operated air activated piston driven double seat accumulator drain valve A drain valve has an inlet (36) for liquids and small solids, an accumulation chamber (37) and an outlet (17). The outlet has a seal (13) which is connected to an air-activated piston (12). The piston is in turn connected to a positive air pressure inlet ... | 02/15/2000 |
| 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 |
| 5964243 | Tank drain valve with a rod concentric with valve member to pierce sedimentary layer in tank A valve comprising a body adapted to be associated with an opening in the wall of a fluid reservoir or flowline, to provide a flow path, from an inlet (111) at the opening, to an outlet (114), a valve seat (117) located across the flow path at the inlet (... | 10/12/1999 |
| 5954086 | Valve with controlled-action obturator for the metered delivery of fluids in automatic machines for filling containers and the like A valve for the metered delivery of fluids to be supplied to containers and the like, comprising a body and a closing cover inside which there is formed a chamber which is supplied with the fluid to be delivered to the container and provided with an obtur... | 09/21/1999 |
| 5924672 | Valve and actuator in combination A valve and actuator in combination with a transportation tank to operate off of low pneumatic pressures including a valve having a valve body with a tank end, a valve seat near the tank end of the valve body, the valve seat having a valve sealing surface... | 07/20/1999 |
| 5915408 | Float valve assembly A float valve assembly has a liquid passage with upper and lower ends opening to upper and lower liquid receiving spaces, valve seats about the upper and lower ends of the passage, and upper and lower float valves within the spaces movable into and from s... | 06/29/1999 |
| 5884654 | Condensate discharge device A condensate discharge device which prevents metal ions from attaching and depositing on the condensate discharge port surface. An inlet, a condensate discharge port, and an outlet are formed in a valve casing, which valve casing includes an upper casing ... | 03/23/1999 |
| 5775363 | Double seat valve with a controlled leakage cavity The invention relates to a double seat valve with a controlled leakage cavity according to the preamble of claim 1. It is an object of the present invention to create favorable conditions for complying, in most points, with the so-called US-American 3A st... | 07/07/1998 |
| 5722454 | Fluid flow fuse A fluid flow device has a body which includes an inlet and an outlet with a valve seat therebetween. A valve stem having a valve member thereon is mounted in the body, and the valve member is operably connected to a diaphragm which separates a region with... | 03/03/1998 |
| 5715858 | Globe valve sticking prevention A control valve that minimizes sticking of the plug assembly by particles such as welding byproducts in the associated heating system. The valve port having a continuous decrease of diameter from the port opening toward the valve seat and an additional st... | 02/10/1998 |
