Patents Examined by Arnold Rosenthal
  • Valve seat for high temperature valve
    Patent number: 5259590
    Abstract: Valve such as a ball valve with a metal seat ring assembly comprising an outer ring seated in the valve body and an inner ring seated in the outer ring. The outer ring is formed with a lip projecting inwardly and presenting a sealing surface for contact with the valve closure member. The inner ring is formed with a lip behind which is an annular groove which permits flexing of such lip. The inner ring is seated within the outer ring. There is a small clearance between the lip and the outer ring which causes sealing between the closure member and the inner ring following by sealing between the closure member and the outer ring. The configuration and clearances of such lips is such that in initial closing the valve closure member contacts the lip of the inner ring causing it to flex and on final closing it contacts the lip of the outer ring causing it to flex.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: November 9, 1993
    Assignee: Grove Valve & Regulator Company
    Inventor: James F. Chambers
  • Flush valve
    Patent number: 5251670
    Abstract: Flush valves for alternately supplying freshwater or seawater coolant to marine engines. Such valves, used in combination with a marine engine cooling system, facilitate flushing of contaminants. In one embodiment, the valve includes a first portion having inlet conduits, a second portion having outlet conduits, and means for rotatably securing the first and second portions together with minimal gap therebetween. Inlet and outlet portions are alternately positioned in a first, single fluid flow relationship (seawater supply) wherein only a first fluid is directed through outlet conduits, or in a second, multiple fluid flow relationship (flushing operation) wherein both a first and a second fluid are sent to outlet conduits. Also, sealing means is provided between the first and second portions to prevent liquid from escaping through the gap therebetween.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: October 12, 1993
    Inventors: Lyle D. Bates, Radford R. Goodloe, Jr.
  • Fluid flow control valve and valve disk
    Patent number: 5251871
    Abstract: A fluid flow control valve includes a valve disk having a labyrinthine partition extending from its face. The partition describes a closed shape. The partition faces a valve seat. The range of control over the flow rate of a fluid is controlled by the length of the partition. Partition lengths are created by their shapes. Several complex shapes, giving rise to differing partition lengths are disclosed. An actuator urges the valve disk toward the valve seat to provide final control of the fluid flow.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: October 12, 1993
    Inventor: Isao Suzuki
  • Closure
    Patent number: 5249775
    Abstract: A stop valve assembly comprises two closure members one for stopping substantive gas or liquid flow and the other to prevent leakage along a spindle section 33. Each member possesses a closure element in the form of a rigid disc-like member (9 or 34) of accurately predetermined thickness lying in a recess (1 or 3) formed round the end opening of a duct or around the spindle section and having exactly the same depth as the thickness of the disc. Over the disc outer surface 11, and the end face around the recess is located a flat annular deformable seal member (14, 64); this can be secured at in relation to the disc member, so as to travel with the disc member 9 as a stop valve, or can be secured against the said face around the recess so as to define an antileakage spindle seal. Since no deformed seal is used and since no packing is used in the screw spindle mechanism, high actuating force is unnecessary.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: October 5, 1993
    Inventor: Seyed H. Tabatabai
  • Remote water shut-off module for use by disabled and infirm
    Patent number: 5248124
    Abstract: A single-unit, remote shut-off module for use by the disabled and infirm has a single-unit module attached by clamps to external water source and outflow connector pipes and housing a shaft which itself houses a plunger with a rubber ball seal which is guided through a shaft guide by electrical current from an electrical motor unit, which is fitably attached above the external water source connector pipe to direct the plunger into the seal of the mouth of the outflow connector pipe, and thereby to interrupt the communication of water from the external water source connector pipe through the module into the outflow connector pipe during a plumbing emergency at the discretion of the user.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: September 28, 1993
    Inventor: George Nugent
  • Valve device having stationary and movable or turnable valve bodies
    Patent number: 5246035
    Abstract: The invention provides an erosion resistant pressure reduction valve or choke comprising a valve housing (1,22) defining a valve chamber (2) connected with an inlet (3) and outlet (4), a stationary first valve body (6,17) arranged in the chamber, and a second valve body (7,18). The second valve body is arranged so as to be turnable or displaceable relative to the first valve body by means of a spindle or the like (14,23). The first and second valve bodies are each provided with corresponding flow-through apertures (19,28). Flow through the valve is regulated by turning or displacing the turnable/displaceable second valve body relative to the first. The apertures in the valve bodies (6,7,17,18) are provided with casings (15,20) made in one piece of polycrystalline diamond.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: September 21, 1993
    Assignee: Norsk Hydro a.s.
    Inventors: Olav Skyllingstad, Lars Nokleberg, Terje Sontvedt
  • Valve assembly and use
    Patent number: 5246205
    Abstract: A poppet valve assembly is provided. The preferred poppet valve assembly comprises a valve seat, valve head member and actuation arrangement. In the preferred embodiment, the valve head member comprises a flexible seal member and backing member, oriented such that the flexible seal member is positioned between the valve seat and the backing member. In use, the backing member is driven toward the valve seat, trapping the flexible seal member therebetween. The seal member engages the valve seat and is simultaneously deflected backward toward the backing member, which limits deformation of the seal member.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: September 21, 1993
    Assignee: Donaldson Company, Inc.
    Inventors: Gary R. Gillingham, James C. Rothman, Peter A. Betts, Wayne M. Wagner
  • Sampling valve
    Patent number: 5246204
    Abstract: A sampling valve is disclosed comprising a stretchable hollow valve plug mounted on the front end of an axially displaceable valve stem. The plug is provided on its inner surface with a bead projecting into a groove in the stem. When the stem is withdrawn from the valve body for inspection or other purposes, the plug is carried along due to the engagement of the bead with a side wall of the groove.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: September 21, 1993
    Inventor: Kai Ottung
  • Solenoid valve
    Patent number: 5246199
    Abstract: A solenoid valve which includes a division wall disposed between an inlet and outlet ports and around the valve seat for defining a resonant chamber in the space. The division wall is provided with at least one communication hole which communicates between the fluid chamber and the resonant chamber through which hole air passes.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: September 21, 1993
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Katsuyuki Numoto, Hisashi Yokoyama
  • Fluid flow control device having an obturating membrane deformable in the direction of fluid flow
    Patent number: 5244184
    Abstract: A fluid flow control device comprises a duct having an inlet aperture and an obturating member, which is mounted in the duct and movable by an actuating member between a first position in which it closes the duct and a second position in which the duct is fully open. The control device comprises a flexible membrane which is fixed around its periphery to the annular wall of the duct. The membrane is arranged to adopt a closing position in which its central region closes off the inlet aperture within the duct, and an open position in which its central region is spaced away from the inlet opening so that the fluid can pass through the latter and through further apertures formed in an annular region of the membrane which join its central region to its periphery.
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: September 14, 1993
    Assignee: Valeo Thermique Habitacle
    Inventor: Patrick Larseneur
  • Fluid flow control valve
    Patent number: 5244182
    Abstract: A high pressure fluid flow control valve that can accurately regulate the volume of fluid flow through the valve in discrete steps by means of a ratchet mechanism associated with a rotatable shaft. The rotatable shaft has a sealing surface on one end for mating with a sealing surface on the output port to close the output port or open it as the shaft is rotated. The shaft is threadedly engaged with the body portion such that it can be rotated a limited portion during opening the valve so that it cannot be accidentally rotated out of the body portion and the valve disassembled. A bleed valve is associated with the hollow chamber to limit the maximum pressure in the valve chamber.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: September 14, 1993
    Assignee: Butterworth Jetting Systems, Inc.
    Inventor: Amos Pacht
  • Solenoid pre-loader
    Patent number: 5244180
    Abstract: The solenoid portion of a solenoid-operated valve is resiliently biased by a pre-loader against an internal shoulder on the valve body to maintain precision of the stator-armature working gap during the useful life of the valve. Several embodiments of pre-loader are disclosed, including a Belleville spring, a wave spring, and an elastomeric ring.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: September 14, 1993
    Assignee: Siemens Automotive L.P.
    Inventors: Russell J. Wakeman, John S. Bright, Kenric J. Johnson
  • Water conditioner rotary valve drive system
    Patent number: 5244013
    Abstract: A water conditioner rotary valve for use in a water conditioning system includes a valve body constructed of an upper section, a lower section and a middle section, to facilitate ease in assembly of the body. The valve rotor member of the conditioner valve is driven by a Geneva drive system, to provide accurate positioning of the rotor member in its various positions. A valve seat member is located adjacent the rotor member, and provides a construction which improves the seal between the rotor member and the surface of the valve body adjacent thereto. The three-piece assembly of the valve body facilitates providing a valve capable of either upflow or downflow brining by replacing the lower valve section. A brine injector valve is mounted exteriorly of the valve body.
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: September 14, 1993
    Assignee: Erie Manufacturing Company
    Inventor: John M. Gagas
  • Rotary hydraulic servo or throttle valve
    Patent number: 5242150
    Abstract: A rotary servo or throttle valve comprises a housing defining a chamber and discharge port in fluid communication with the chamber, a rotary valve spool for delivering fluid into the chamber, and a system for delivering pressurized fluid passing from the outlet opening of the valve in the chamber to the discharge port in the housing in which non-cavitating technology can be readily incorporated. The outlet opening of the valve spool is a wedge shaped groove formed in its periphery, the groove having opposed, arcuately diverging sidewalls. The diffusing system comprises an elongated member which may be rotated in the chamber to align a plurality of flow paths with the discharge port and the outlet opening. The elongated member and valve spool may be rotated independently in opposite directions to obtain faster flow rate changes.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: September 7, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Mark E. Shiffler, Luke W. Loy
  • Electromagnetically operated valve
    Patent number: 5240227
    Abstract: The electromagnetically operated valve communicating with a pressurized fluid in an oil-filled chamber, includes an armature (17) resiliently retained in an armature chamber (16) of a housing (10) by membrane springs (22,23); an armature-operated valve body (20) movable with clearance in a hole (34) provided in the housing (10) and a compression spring (40) biasing the armature. The armature chamber (16) is hermetically sealed in the housing from a valve part (15) against which the valve body (20) is urged by the compression spring and contains a damping fluid for damping motions of the armature. The housing is also provided with a first compensating chamber (44) communicating with the armature chamber (16) to compensate for a volume change of the damping fluid and with a second compensating chamber (46) connected with the first compensating chamber via a duct (45).
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: August 31, 1993
    Assignee: Robert Bosch GmbH
    Inventor: Bernhard Sich
  • Flow control valve
    Patent number: 5238222
    Abstract: A flow control valve comprises a fixed iron core, an electromagnetic coil, a casing made of a magnetic substance in which the electromagnetic coil is received, a movable iron core, a return spring for urging the movable iron core in the opposite direction to an attractive force, a flow control valve main body provided with a fluid inlet passage and a fluid outlet passage, a valve provided at the movable iron core, and a valve seat with which the valve is in contact in a non-electric conductive state, wherein at least one of the fluid inlet and outlet passages of the fluid control valve main body is formed to restrict the maximum flow rate of the flow control valve.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: August 24, 1993
    Assignee: Mitsubishi Denki K.K.
    Inventors: Mamoru Sumida, Manabu Miyaki, Masayasu Miyajima
  • Dry coil
    Patent number: 5238224
    Abstract: The coil of a solenoid-operated valve is fluid-isolated from fluid whose flow is controlled by the valve by providing the solenoid with an imperforate transverse end wall having a radially inner annular ferromagnetic zone forming one portion of the stator, a radially outer annular ferromagnetic zone forming another portion of the stator, and a radially intermediate annular zone of non-magnetic material separating the radially inner and radially outer ferromagnetic zones.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: August 24, 1993
    Assignee: Siemens Automotive L.P.
    Inventor: John J. Horsting
  • Armature bounce damper
    Patent number: 5236173
    Abstract: An armature moves in a first and a second direction for causing a needle valve to contact and separate from a valve seat. A stop is situated to provide a motion stop in at least the first direction. Damping is provided for damping the motion of the armature by dissipating energy from a collision of the armature with the stop. The energy dissipation is accomplished by using a spring or washer to hold the needle valve against the valve seat to prevent unwanted fuel seepage to an engine.
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: August 17, 1993
    Assignee: Siemens Automotive L.P.
    Inventor: Russell J. Wakeman
  • Trim for ANSI class V shut off of valves
    Patent number: 5236014
    Abstract: The disclosed valve provides a seal between the valve plug and the valve body to substantially prevent leakage therebetween when the valve is in its closed position. The seal can be arranged for minimizing the net forces acting on the valve plug to close the valve or to keep the valve closed; thus, the net result is a smaller valve actuator. Furthermore, the seal can be arranged to withstand high temperatures.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: August 17, 1993
    Assignee: Fisher Controls International, Inc.
    Inventors: Melvin L. Buls, Randy L. Hall
  • Electromagnetically operable valve
    Patent number: 5236174
    Abstract: An electromagnetically operable valve having a core on which a magnet coil is arranged, an armature which acts on a valve closing body by means of a connecting pipe, in which the components to be welded together include a reduced diameter portion in which welding of the parts is by a laser in the reduced diameter portions.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: August 17, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Dieter Vogt, Ferdinand Reiter, Rudolf Babitzka