Class 137/614.13 - Alternately seating

Subclass of Class 137 - Fluid handling
Definition: Systems wherein as one valve is moved toward its closed
No. of patents: 24
Last issue date: 04/04/2006

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Number	Title	Issue Date
7021604	Iris valve for control of bulk solids An iris valve for controlling the flow of bulk solid materials includes a flexible cylindrical sleeve, a control ring, and a polymeric isolator disc, all sandwiched between upper and lower body members. Rotating the control ring twists the flexible sleeve in an iris...	04/04/2006
6948512	Flushing attachment for hydrant A device and method for automatically flushing hydrants. The device is installed externally to an existing hydrant. The device comprises a nipple having an internally threaded collar for attaching the device to a hydrant outlet, a valve, a control for automatically ...	09/27/2005
6648006	Valve and a method of closing a valve Valve (1) with a through-going axial bore (4), a first spindle (5) axially displaceable in the bore (4), an elastic/flexible seal (10) placed at the one end surface (6) of the first spindle (5), at least two hollow connection branches (7, 8), each of whic...	11/18/2003
6382239	Leak-detecting diverter valve A diverter valve for controlling a fluid flow without the sudden hammering pressure changes normally found in fluid control systems, and a method for assembling the valve. The valve includes a modular valve body with two substantially identical sections, ...	05/07/2002
6192923	Electromagnetic flow control device An electromagnetic flow control device, or valve is provided. The valve uses two sets of stationary electromagnetic windings, with corresponding movable electromagnetic cores, which are completely contained within the flow stream of the valve. The movable...	02/27/2001
6112137	Adaptive system for predictive control of district pressure regulators A method and apparatus for controlling a fluid distribution regulator disposed in a fluid distribution system in which an intelligent controller is operatively connected to at least one fluid district regulator for controlling the district regulator. At l...	08/29/2000
5954089	Electromagnetic regulator utilizing alternate valve operating modes for gas pressure regulation A pair of serially connected electrically operated computer controlled gas valves combine with a pressure sensor to output pressure regulated low pressure gas dispensed from a high pressure gas source and define a pressure regulation system of relatively ...	09/21/1999
5901729	Material flow control arrangement and method A dosing apparatus 1 includes a material flow control arrangement 2 including vertical ducting 4 having co-axial therewith a vertically reciprocatory rod 5 mounting at its ends inlet and outlet valve closure plugs 6a and 6b. The upper and lower end zones ...	05/11/1999
5421358	Fluid valve mechanism and valving method A piston fluid valve mechanism and method, wherein annular outer and core inner coaxial valve members are adapted to move to and fro slidably relative to one another and to bar upstream-to-downstream fluid flow when mutually juxtaposed into seated positio...	06/06/1995
5309934	Balanced piston fluid valve Balanced piston fluid valve, wherein annular outer and core inner coaxial valve members are adapted to move to and fro slidably relative to one another and to bar upstream-to-downstream fluid flow when mutually juxtaposed into seated position but adapted ...	05/10/1994
5244011	Control valve A fluid control valve including a housing defining a fluid inlet and a fluid outlet, and two eccentrically and rotatably mounted, oppositely disposed plug elements arranged for selective sealing of the inlet and outlet, the plug elements being coupled to ...	09/14/1993
5158105	Anti-siphon freezeless hydrant An anti-siphon and freezeless water hydrant comprises a unitary cast metal housing which incorporates a hose bib, and a drain opening cylinder equipped with drain orifices and a drain valve seat. The housing is shaped and labeled to assure installation so...	10/27/1992
5135032	Slurry gate valve A slurry gate valve incorporating dual gates for the positive interruption of fluid flow through a pipeline associated with the valve. The dual gate valve is movable through three positions: a fully open position, a half open position, and a full closed p...	08/04/1992
4997108	Tap and liquid dispenser using the same A tap and liquid dispenser which includes a valve housing including one end having an inlet port formed therethrough for introducing an liquid thereinto, a circumferential wall defining a housing passage axially extending therein to communicate with the i...	03/05/1991
4995416	Process for controlling the medium inlet into at least one leakage cavity of a valve and an apparatus for its performance The invention relates to a process for controlling the medium inlet into at least one leakage cavity of a valve according to the opening part of claim 1. When applying the proposed process to a polyway-switching valve, the construction of which is novel p...	02/26/1991
4796665	Multi-purpose draining valve A valve body comprises a first sealing seat and a second seat opposite the first. The valve element is selectively controlled so that, in addition to the position in which a bearing surface thereof rests on the first seat to ensure tightness of the device...	01/10/1989
4733692	Tube coupling A tube coupling having a socket and a plug, each having a fluid flow passage extending therethrough, and a valve mounted in the flow passage of at least one of the socket and plug for axial movement between a first position for closing the flow passage an...	03/29/1988
4716921	Filler sterilization system A filler sterilization system including an inlet valve, a main valve, an outlet valve, a linkage system therebetween and a cam and follower arrangement for actuating the linkage system to move the three valves into three operating positions. The three pos...	01/05/1988
4532954	Wall hydrant A wall hydrant is described herein comprising a hollow tube having an inlet end and outlet end. The inlet end is adapted to be connected to a source of fluid under pressure and has a valve means adjacent its inlet end. The inlet valve means comprises a cy...	08/06/1985
4457337	Drain valve, preferably for a vehicle brake system A vehicle brake system drain valve comprises a housing (1-4), a solenoid therein and a valve element (15) movable between two seats (12, 13) in the valve. A neck (4), which is a part of the housing, is conditionally rotatable relative to the remainder of ...	07/03/1984
4457328	Combined positive seal and repetitive actuation isolation valve In-line valve means for isolating a source of fluid under pressure from a desired using apparatus until use of the fluid is desired. The in-line valve means includes a positively sealed plug and an on-off isolation control valve which is positioned by app...	07/03/1984
4351414	Lubricant fitting A lubricant fitting (10) adapted to be detachably connected to a valve body (11). The lubricant fitting (10) includes an elongate body (12) that has a central bore (24) therethrough which has an intermediate bore portion (26) that joins opposite inner and...	09/28/1982
4072248	Metering apparatus The present invention is concerned with the provision of an apparatus for the metering of a viscous fluid, and more particularly to a metering device for controlling the advance of margarine feedstock into a crystallization chamber for molding into print ...	02/07/1978
4007760	Fuel control system and control device therefor or the like A fuel control device having a passage therethrough for interconnecting a fuel source with a main burner and having a poppet valve arrangement that is directly manually operated for opening and closing the passage so as to control the flow of fuel from th...	02/15/1977

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Class 137/614.13 - Alternately seating