Class 137/330 - NON-VALVING MOTION OF THE VALVE OR VALVE SEAT

Subclass of Class 137 - Fluid handling
Definition: Apparatus in which means is provided for moving either a
No. of patents: 21
Last issue date: 04/01/2008

Number	Title	Issue Date
7351179	Stepper motor driven proportional actuator A low energy stepper motor driven actuator that eliminates the need for a position sensor is provided. The stepper motor rotates a cam in a control piston valve. The cam rotation increases the gap between the cam and nozzle on one side of the cam and decreases the g...	04/01/2008
7108243	Ball valve A ball valve includes a housing, a valve member, and a grip. The housing has a valve chamber in the center portion for containing a valve portion of the valve member consisting of the valve portion and a shaft portion extending up from the valve portion and out of t...	09/19/2006
6957659	Sliding disk valve for pneumatic conveyance of abrasive material A linear actuated disk valve for a fluid conveyance system constructed with a valve body having an internal chamber and a passage through the valve body, the valve body having opposite ends with external connectors that continue the passage and that are connectable ...	10/25/2005
6845783	Sliding disk valve for pneumatic conveyance of abrasive material A linear actuated disk valve for a fluid conveyance system constructed with a valve body having an internal chamber and a passage through the valve body, the valve body having opposite ends with external connectors that continue the passage and that are connectable ...	01/25/2005
5396919	Rotating disc valve A disc valve is linearly actuated to effect rotation of its sealing disc during opening and closing operations. Disc rotation is effected by creating unbalanced frictional forces between the sealing surfaces during valve operation. Rotation of the disc pr...	03/14/1995
5284220	Pressure control valve assembly for hydraulic circuit and automotive rear wheel steering system utilizing the same In a pressure control valve, a filter member is disposed in a feedback path for feeding back fluid pressure in the corresponding control port to a pilot chamber for feedback controlling a position of the valve spool in cooperation with an electric or elec...	02/08/1994
5222417	Hydraulic control system of an automatic transmission for a motor vehicle A solenoid operated control valve in an automatic transmission is operated by dither current. A flow rate of oil through the solenoid operated control valve is calculated. At least either one of the frequency and amplitude of the dither current is correct...	06/29/1993
5123819	Pressure fluid pumping device with a reciprocating piston pump The invention seeks to reduce structure-borne sound emissions of the reciprocating piston pump. The reciprocating pump is includes an outlet valve, which has a valve seat and a valve closing body that is received in a hollow space and is loaded by a closi...	06/23/1992
5092358	Pressure regulation A pressure regulator whose initial pressure can be set by manually setting the initial stress of a control spring has a double-seated valve with an inner and outer valve seat and a valve closing element. The valve closing element divides a supply pressure...	03/03/1992
4960365	Hydraulic control apparatus A hydraulic control apparatus has a transistor which is changed over by a control signal inputted to an input terminal thereof; and a solenoid controlled valve having a spool actuated by a DC solenoid to be driven by exciting current whose pulse duration ...	10/02/1990
4901752	Apparatus for maintenance of ball valve Apparatus for maintenance of the moveable pipe sleeves (52), bearing surface and seals of a ball valve. The apparatus has a bonnet (7) designed to be secured to and form a tight connection with a valve flange (53) and fastened to the underside of the bonn...	02/20/1990
4660592	Butterfly valve The disclosure is of a gate-like valve wherein a gate or carrier plate has upper and lower through bores movable into alignment with flow passages in the body. In the upper through bore is received a valve disc that is rotatable on the carrier between a c...	04/28/1987
4590983	Precision vacuum melting and casting furnace with a melting chamber and a casting chamber A precision vacuum melting and casting furnace with a melting chamber containing a melting device. A casting chamber is positioned below the melting chamber. The casting chamber can be raised, lowered, and swung out to the side. The casting chamber commun...	05/27/1986
4449547	Long life gate valve A gate valve presents on a flat valve seat surface defining a fluid flow path the mating flat surface of a freely rotatable circular disc carried at its center along a longitudinally moving straight line axis. The valve seat defines a fluid flow aperture ...	05/22/1984
4448213	Water valve A float valve in this invention has a hollow body having a spigot adjacent an orifice, a valve seat surrounding the orifice, a float arm pivoted to the hollow body, and an abutment surface on the float arm engageable against an elastomeric valve member wh...	05/15/1984
4442851	Cleaning of objects with solvent A degreasing apparatus comprises a vessel (3) the lower portion of which is shut off by means of a bowl-shaped plate (5), to form a container (1) with a heating means (2) for boiling solvent. The bowl-shaped plate (5) has an opening (6) at its lowest poin...	04/17/1984
4432387	Rotating disc gate valve A rotating disc gate valve for controlling fluid flow in a flow line comprising a valve body having a flow passageway and a cavity transverse to the flow passageway to receive a flow control assembly. The flow control assembly includes first and second va...	02/21/1984
4401238	Devices used for filling containers A device for filling a container comprises an endpiece provided with an inner conduit equipped at its end with a ball-valve having a through passage and pivotable in the endpiece about a diametral axis transverse to the passage. An annular member having a...	08/30/1983
4373546	Long life valve In order to increase life of a disc type valve, which exhibits wear in the presence of fluid flow, a circular freely rotatable closure disc is provided so disposed in its closure path to engage flow apertures asymmetrically thereby inducing a rotary motio...	02/15/1983
4367766	Slide valve A slide valve with a slightly wedge-formed valve member arranged to close a flow duct by a cross-wise movement relative to the duct. There are annular sealing surfaces surrounding the flow duct and they are engageable by sealing side portions of the valve...	01/11/1983
3931934	Particulate material spreading apparatus A dump body adapted to be hingedly mounted on a vehicle so as to be tipped upwardly towards an end of the body, outlets in the body near said end, plate valves slidably mounted to close and open the outlets, and a fluid cylinder and piston operating unit ...	01/13/1976

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Class 137/330 - NON-VALVING MOTION OF THE VALVE OR VALVE SEAT