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Class 251/325 - With internal flow passage


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter wherein the piston provides an internal flow
No. of patents: 108
Last issue date: 05/01/2012


1      
NumberTitleIssue Date
8167269Valve trim apparatus for use with valves
A valve trim apparatus for use with valves is described. An example valve trim apparatus includes a cage having an upper portion removably coupled to a lower portion. A closure member is disposed within the cage and has a first seating surface and a second seating s...
05/01/2012
7401751Fluid flow regulator with overpressure relief function
A flow regulator includes a body with an aperture into which an inlet and an outlet open. A pin has a bore extending therein and communicating with the outlet. A first aperture, a second aperture and a bypass orifice are spaced longitudinally along the pin and exten...
07/22/2008
7398777Valve operating between telescopic components with O-ring seals
A valve for communicating a source 14 of compressed fluid with an opening 13 of an adjacent chamber 12 in a sleeve 11 comprises a circumferentially separated array of depressions 15 in the outer periphery of a bolt 10. Areas...
07/15/2008
7318814Medical suction valve
A valve assembly includes a housing defining an aperture, a passageway, and a branch passage. The branch passage extends from the aperture and intersects and communicates with the passageway. The branch passage is disposed at an angle greater than 90 degrees with re...
01/15/2008
7318448Swimming pool cleaning apparatus and parts therefor
A swimming pool cleaning device includes a fluid distribution system for controlling its operation. More particularly, the distribution system includes a housing having an inlet for receiving a supply of pressurized fluid, a pair of outlet openings and a valve chamb...
01/15/2008
7204211Arrangement of an internal combustion engine poppet valve and an actuator therefor
The present invention (with reference to FIG. 1) is an arrangement of an internal combustion engine poppet valve and a hydraulic actuator therefor comprising: an actuator housing (16); spring means (104,105) for biassing the poppet val...
04/17/2007
7159617Balanced globe valve
An essentially fully balanced plug valve is presented in which the flow control contour is interior to the moving member. The sealing edge of the moving member is at the exterior surface relative to the interior contour. This sealing edge is formed by use of matchin...
01/09/2007
7044440Outfall valve structure conforming to ergonomics
An outfall valve structure conforming to ergonomics is primarily composed of a casing, which is moveably connected with a hollow pipe. The casing is in the form of a short pipe, the exterior wall thereof is provided with a coupler with an opening provided on the bot...
05/16/2006
7000890Pressure compensated shear seal solenoid valve
A pressure compensated shear seal solenoid valve for use in subsea control systems is disclosed utilizing an arcuate cross section fluid passageway to improve flow rates, ease of serviceability and reduce size. ...
02/21/2006
6983926Valve arrangement for hydraulic consumer
A check valve arrangement for a hydraulic consumer which permits connecting the hydraulic consumer selectively to a medium pressure line or a high pressure line. The valve arrangement comprises a medium pressure switching valve 10, a high pressure switching v...
01/10/2006
6935616Balanced plug valve
A balanced plug valve having substantially reduced shut-off force requirements due to an integral dual seating arrangement of the valve plug within a valve housing having slanted inlet and outlet ports and wherein the inlet port forms an elliptical opening for fluid...
08/30/2005
6918409Spool and poppet inlet metering valve
Valve structures include a combination of spool valving and poppet valving. A spool function of the structure regulates the flow of a liquid, such as the flow of fuel to a diesel engine. A poppet function provides a low leakage in the valve in a closed or cut-off st...
07/19/2005
6908071Self-closing faucet with shearing action
A faucet includes a body having a main bore including an inlet and an outlet. A bonnet and spout are connected to the body. A stem includes a first portion inserted into the outlet of the main bore and a second portion that projects through the bonnet chamber to a d...
06/21/2005
6899317Combined test and bleed valve fitting
A test port and bleed valve is combined in a unitary main body of a device. A split core test plug is positioned within a hollow valve stem. The seal at the bottom of the valve stem engages a valve seat to provide a releasable airtight seal. At the top of the valve ...
05/31/2005
6899318Wave seal to resist extrusion during equalization
The present invention provides for dynamic sealing in a flow control device. In an embodiment, the flow control device comprises a closure sleeve adapted to slide over the tubing hole. The closure sleeve has a front edge having a wave-like surface. One or more seals...
05/31/2005
6883544Solenoid valve with improved magnetic attractive force
In a solenoid valve, a boss portion is formed integrally with an attracting portion of a stator core at an outer peripheral side of the attracting portion. The boss portion has a tapered outer peripheral surface and a tapered inner peripheral surface. A plunger has ...
04/26/2005
6857634BOP assembly with metal inserts
A blowout preventer assembly 10 includes opposed rams 12, 14, each including a rubber or elastomer sealing assembly 16, 18, with a plurality of inserts 20 forming an array 22 of metal inserts within each sealing assembly. Each inse...
02/22/2005
6827330Pressure regulating valve for a refrigerating plant
There is described a pressure regulating valve for a refrigerating plant, having a slider member that can be moved relative to a guide by means of a drive device, with variable throttle resistance being created between the guide and the slider member. The purpose of...
12/07/2004
6782952Hydraulic stepping valve actuated sliding sleeve
A downhole well valve having a variable area orifice (26) is flow area adjusted by a sliding sleeve (20) that is axially shifted along a tubular housing (12) interior in a finite number of increments. A hydraulic actuator (60) displaces a...
08/31/2004
6691898Push button foam dispensing device
The invention relates to a fluid dispensing device incorporating a push-button actuator normally biased in the closed position, a housing for receiving the aerosol canisters and a carrying case for the entire assembly. Activation is achieved by longitudin...
02/17/2004
6689007Manual valve for automatic transmission
A manual valve for use within the hydraulic control system of Chrysler automatic transmissions. The present manual valve includes flow control structures to vary its standard functions. In a preferred embodiment the manual valve includes a secondary contr...
02/10/2004
6687936Valve for zoned cellular cushion
A valve for use with an inflatable cushion having individual inflation zones including a slide housing positioned between two outer casing halves. Each casing half has a plurality of nipple connector seats. Each nipple connector seat has at least one exte...
02/10/2004
6679476Control valves
A compact, in-line valve assembly consists of a hollow valve body, a seat, and a first diaphragm assembly including a deflectable portion forming a first volume between the seat and the first diaphragm assembly. A second diaphragm is attached to the first...
01/20/2004
6644517Stem configuration to reduce seal abrasion in metered dose aerosol valves
A valve stem for use in an aerosol valve such as a metered dose medicinal aerosol valve is described. The valve stem includes a flattened area around the side hole. The flattened area helps reduce damage to the diaphragm aperture upon repeated actuation o...
11/11/2003
6622988Mouthpiece for drinking
A mouthpiece for a hydration system designed for drinking liquids from that system. The mouthpiece comprises a body having an internal conduit passing through it, the internal conduit having a broad portion provided with a broad opening and a narrow porti...
09/23/2003
6616124Spool valve for controlled dampers
The problem of flow induced instability in a control valve for a vehicle damper is solved by a generally tubular shaped valve spool having an open, bridged, flow-through end, rather than side flow openings. The flow-through end of the spool has a narrow f...
09/09/2003
6564410Valve for zoned cellular cushion
A valve for use with an inflatable cushion having individual inflation zones including a casing with an internal bore and a plurality of openings along the length of the casing connected to the individual inflation zones by air conduits and a movable slid...
05/20/2003
6488258Releasable check valve for very high system pressures
A releasable check valve for use with very high system pressures. The check valve is formed such that the poppet piston is relatively smooth-running and that good action and a long service life of the seals are obtained, wherein the receiving bore has ess...
12/03/2002
6447473Medical suction valve
A valve assembly includes a housing defining an aperture, a passageway, and a branch passage. The branch passage extends from the aperture and intersects and communicates with the passageway. The branch passage is disposed at an angle greater than 90 degr...
09/10/2002
6394135Balanced plug valve with contour wall
There is a balanced plug valve with a contour shaped wall. The contour shaped wall forms a gap with an edge of a balanced plug. Fluid is able to flow through an input port, through the balanced plug, through the gap, and out an output port. The shape of t...
05/28/2002
6328277Automatic valve
A compact automatic valve has a cylindrical body with a sleeve inserted to move in the cylindrical body in the axial direction. A first diaphragm, having an annular joint section and an annular protrusion arranged in the outer circumferential section, is ...
12/11/2001
6315268Solenoid and hydraulic valve with a solenoid
A solenoid for a hydraulic valve has an armature chamber having chamber walls. A pole core forms one of the chamber walls and has an axial central bore. An armature is slidably arranged in the armature chamber. The armature has a central receptacle. An ar...
11/13/2001
6315049Multiple line hydraulic system flush valve and method of use
A flush valve for a multiple line hydraulic system includes a bifurcated manifold, the bifurcation being provided by a piston actuatable hydraulically, mechanically, electrically magnetically or by fiber optic means. The piston or gate is provided with a ...
11/13/2001
6254061Medical suction valve
A valve assembly includes a housing defining an aperture, a passageway, and a branch passage. The branch passage extends from the aperture and intersects and communicates with the passageway. The branch passage is disposed at an angle greater than 90 degr...
07/03/2001
6244566Valve assembly
A valve assembly includes a poppet axially moveable in a passageway of a body member. The poppet has an annular seal sealingly engageable with a sealing abutment of the body and, when so engaged, blocks the flow of fluid between the first end of the body ...
06/12/2001
6105832High speed, no stringing, hot melt adhesive dispensing head
It is therefore an object of the present invention to provide a valve assembly of the general class aforedescribed having the capability of drawing-back the flow of product from the nozzle after valve closing, in a more accurate and precise manner, requir...
08/22/2000
6095192Spool valve for fluid control
A spool valve is provided with a stem portion that defines a fluid passageway formed by either (a) a single central support having a non-cylindrical curved surface shaped hydrodynamically, or (b) only a pair of sidewalls with, preferably, interior surface...
08/01/2000
6024174Sprinkler head and a temperature controlled valve therefor
A temperature sensitive valve, and two embodiments of a sprinkler head operated by the valve. A sprinkler head core houses the temperature sensitive valve and has a supply conduit entering through the top surface of the head core. The first embodiment of ...
02/15/2000
5971007Piston valve
A piston valve for use in connection with the fire protection industry is disclosed which includes features for protecting against corrosion. A sacrificial zinc anode is mounted in the body of the valve under the handwheel. A polymeric piston is used whic...
10/26/1999
5803042Valves and valve timing for internal combustion engine
An exhaust valve assembly of an internal combustion engine selectively covers an exhaust manifold circumferentially located about a top wall of a cylinder without interfering with segments of a piston. The exhaust valve assembly includes a ring-shaped por...
09/08/1998
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