Patents Examined by Ramyar Farid
  • Patent number: 5887622
    Abstract: A valve assembly is comprised of a valve plate 35, a discharge valve 34, a backing valve 33, and a stopper 31. A first fixed member 34H of the discharge valve 34 and second fixed member 33H of the backing spring 33 have a first slot 43 and a second slot 42 for receiving a projection 44 formed on the supporting surface 37S, respectively. The stopper 31 comprises a first pressing member 31H which enables the first fixed member 34H of the discharge valve 34 and second fixed member 33H of the backing spring 33 to be pressed in a supporting surface 37S of the accommodating space 37. The embossing portion 36 is pressed by the lower surface of the valve plate 101.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: March 30, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Chi-Young Ahn
  • Patent number: 5881757
    Abstract: A pressure regulator apparatus has a pressure regulator mechanism which includes first and second housing portions, each made of substantially rigid material, such as a PVC polymer, and each housing portion having a passageway therethrough. One of the housing portions has a plurality of niches formed therein while a second housing portion has a plurality of raised wedged members formed thereon so that the pressure regulator mechanism can be placed in the two housings which can be driven together to drive the housing wedge members of one portion of the housing into the niches of the other portion of the housing. Since both housings have a cylindrical portion, the wedge members are sized to extend above the inner lip of the other housing portion to thereby require a forced expansion of the substantially rigid housing portion to drive the wedge members into the locking niches in the other housing member which simultaneously locks the pressure regulator mechanism into position in the housing.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: March 16, 1999
    Assignee: Senninger Irrigation, Inc.
    Inventors: Arlene Kuster, Mark Healy, William McFadden
  • Patent number: 5881765
    Abstract: A boost-enhanced gas pressure regulator consists of a bonnet and a body (main casing) that are secured together so as to capture a pressure-responsive diaphragm between both components. The body has an inlet port and one or more outlet ports. An actuator providing a camming means, preferably in the form of a pair of spaced control channels, is connected to the diaphragm to be moved with and by the latter. The camming means/control channels engage a corresponding pair of control pins on opposite sides of a movable boost tube, such that there is a direct-acting connection between the diaphragm and boost tube. The boost tube has external guide surfaces which serve to guide and control its movement, and it also has an internal gas flow passage in which a valve seat disk (valve member) is mounted.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: March 16, 1999
    Assignee: S. H. Leggitt Company
    Inventors: Christopher G. Turney, Paul W. Heald
  • Patent number: 5878994
    Abstract: A gate valve having a bolted bonnet is modified by welding a first ring to the valve bonnet and a second identical ring to the valve housing with weld beads on the inner edge of the rings. After mating the bonnet and the housing, a final weld is made joining the outer edges of the two rings.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: March 9, 1999
    Assignee: Phillips Petroleum Company
    Inventor: Darrell C. Crain
  • Patent number: 5875815
    Abstract: A combination pressure regulator/drain check valve comprising a housing having an inlet, an outlet and a flowpath therebetween, the flowpath at least partially defined by a reciprocable plunger. One end of the plunger closest the inlet approaches a pressure regulator seat while the opposite end closest the outlet is engageable with a drain check valve seat. The plunger is normally biased toward the drain check seat.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: March 2, 1999
    Assignee: Nelson Irrigation Corporation
    Inventors: Cliff P. Ungerecht, George Sesser
  • Patent number: 5868155
    Abstract: A supply manifold (10) and a transmitter supporting block (11, 11a, 11b) are combined into a pressure transmitter supporting modular unit such that when maintenance or cleaning of the system is to be carried out, the pressure transmitter or transmitters can be removed together with the supporting block (11, 11a, 11b) to keep inlet section of the transmitter(s) protected from mechanical impacts or the like. The supporting block with the transmitter(s) can then be placed back after the servicing, rodding or the like of the system, without the need for time consuming realignment of the elements and without the danger of damaging the pressure transmitter as mentioned above. Three different embodiments of the supporting block (11, 11a, 11b) are described for use in the modular unit of the invention.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: February 9, 1999
    Inventor: Peter B. Hutton
  • Patent number: 5857491
    Abstract: A valve arrangement comprises a piezo electric member arranged to control fuel flow through an orifice, the piezo electric member being operable to flex away from the orifice to allow an increased rate of fuel flow therethrough. The piezo electric member is also engageable with a valve member of a pressure relieving valve to control lifting of the valve member from a seating.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: January 12, 1999
    Assignee: Lucas Industries public limited company
    Inventor: Michael Peter Cooke
  • Patent number: 5842501
    Abstract: A pilot operated safety relief valve assembly including a main safety relief valve (14) and a pilot valve (36) connected directly to the relief valve (14) is disclosed. Main safety relief valve (14) has a planar mounting face (76) in contact relation with opposed mating mounting face (78) of the pilot valve (36). Dome ports (72 and 84) in contacting planar faces (76, 78) are in alignment with each other without any tubing therebetween. Exhaust ports (74 and 86) in contacting planar faces (76, 78) are in alignment with each other without any tubing therebetween. Inlet sensing ports (75D, 75E, 65D, 65E) as shown in the embodiments of FIGS. 9 and 10 in contacting planar faces (76D, 76E, 78D, 78E) are in alignment with each other without any tubing therebetween. A fluid pressure pickup fitting (48) has a port (118) which communicates with the fluid passage (50) to the pressure vessel. A test connection (120) is connected to the fluid pressure pickup fitting (48).
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: December 1, 1998
    Assignee: Flow Safe, Inc.
    Inventors: Walter W. Powell, Michael L. Cognevich
  • Patent number: 5839474
    Abstract: An eductor apparatus 20 includes a fluid inlet port 30 which directs fluid through an air gap 32 to an eductor 42. A rib 38 deflects any fluid which bounces off of the eductor 42 so that the fluid is retarded from exiting through an air gap port 34. The eductor 42 is of a one-piece construction having a specially designed inlet port 44 and exterior surface 116 thereabout in order to ensure attached flow and thereby reduce the amount of fluid which bounces off the exterior surface 116 and which is directed back upstream toward the air gap port 34.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: November 24, 1998
    Assignee: SC Johnson Commercial Markets, Inc.
    Inventor: Michael J. Greaney
  • Patent number: 5836338
    Abstract: The invention concerns a thermal safety fitting in which the closure motion of the obturator is longitudinal with respect to the obturator seat. The aim is to avoid lateral excursions of the obturator, while keeping manufacturing costs and structural size as low as possible. The obturator (12) is held in the open position in the housing (1) on the longitudinal axis of the obturator seat (28) by means of an approximatively U-shaped element (30). The two arms (9) of the U-shaped element (30) are located in the vicinity of a reduced-diameter section (17) of the obturator (12). The part (13) of the U-shaped element (30) joining the two arms (9) rests against a thermosolder (14). If the thermosolder (14) melts, the arms (9) no longer remain in the reduced-diameter section (17) owing to the change in the position of the U-shaped element (30), and the obturator (12) thus moves into the closed position under the action of a closing spring (24).
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: November 17, 1998
    Assignee: Mertik Maxitrol GmbH & Co., KG
    Inventor: Klaus Schulze
  • Patent number: 5836345
    Abstract: A vacuum breaker vent valve is disclosed along with a coupler device and the packaging designed to enclose the valve and the coupler device. As packaged, the valve stem is received within the coupler device and the packaging, in two halves, is fastened above and below the valve and coupler device to enclose them. In use, the coupler device is inverted and attached to a sanitary system pipe and the valve is coupled on the coupler device. The packaging halves are assembled over the valve to provide protection.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: November 17, 1998
    Assignee: Studor Trading Ltd.
    Inventor: Kurt S. B. Ericson
  • Patent number: 5836349
    Abstract: A device for controlling or metering fluid flow in either direction through a conduit. The device comprises a shell disposed in communication with the conduit. Disposed within the shell is a body having a pair of metering orifices axially extending therethrough. A valve is, disposed within the shell and adapted such that fluid flow in a first direction through the device urges the valve to allow fluid flow through the first metering orifice and closes off the second metering orifice. Upon a flow reversal, the fluid urges the valves means to operate in the opposite manner wherein the first metering orifice is closed off and communication is established through the second metering orifice. The device is adapted for use in a reversible vapor compression air conditioning system. In this application, one metering orifice in the body is sized to provide proper metering for heating mode operation and one metering orifice is sized to provide proper metering for cooling mode operation.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: November 17, 1998
    Assignee: Carrier Corporation
    Inventors: Kevin A. Kimberly, John M. Palmer
  • Patent number: 5829477
    Abstract: A gas regulator is of a modular construction, having a base providing coupling to a gas supply system and a body in which the pressure regulation elements are located. The base and body form a plug and socket type connection, the body being removable from the base, for repair or replacement without the base being disconnected from the gas supply. Inlet and outlet ports in the base align with corresponding inlet and outlet chambers in the body to provide a gas flow path through the regulator with the base and body connected.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: November 3, 1998
    Assignee: Taprite-Fassco Manufacturing, Inc.
    Inventors: Thomas Graham, Yushan Wang
  • Patent number: 5829478
    Abstract: A Condition Sensing Hydromechanical Fuze to sense hydraulic line flow for velocity, volume, direction and flow measurement. The fuze is self adjusting with temperature changes and safely enables hydraulic circuit segregation and cross porting to maintain normal operation of a primary hydraulic circuit following degradation or failure of a secondary hydraulic circuit in a dual input manual vehicle brake system or other nonbrake system application which requires the ability to segregate one portion of the system from another based on regulated flow volume and rate.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: November 3, 1998
    Inventors: Steven G. Pape, Robert G. Stuttgen
  • Patent number: 5829466
    Abstract: A system and method for treating a fluid flowing along a main fluid supply path in which a streaming current detector receives a sample flow of a main fluid supply following main dosing with a chemical under control of a streaming current detector output. A secondary chemical dosing is applied to the sample under the control of the streaming current detector output in a feedback loop.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: November 3, 1998
    Assignee: Lasertrim Ltd.
    Inventor: Garry Church
  • Patent number: 5823229
    Abstract: A faucet having multiple water discharges includes a housing, an input water connection for the housing, a stream discharge on the housing, a spray discharge on the housing, a filtered water discharge on the housing, a water filter within the housing, and a control valve in the housing connected to each of the water discharges. There is an unfiltered water flow path from the input water connection to the control valve. A manual actuator accessible from the exterior of the housing operates the control valve to direct water from the unfiltered water flow path to either the stream discharge or the spray discharge. There is a filtered water flow path from the input water connection, through the filter, to the control valve. A filtered water manual actuator accessible from the exterior of the housing operates the control valve to direct filtered water to the filtered water discharge.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: October 20, 1998
    Assignee: Moen Incorporated
    Inventors: John E. Bertrand, Lee A. Mercer, Thomas H. Burchard, Gregory Hunter, John Lofgren, Henry N. Wagner, Kevin M. Johnson, Jeffery Karg
  • Patent number: 5823228
    Abstract: A valve manifold having a manifold body with a first face, an opposed, substantially planar second face, and a peripheral wall, a first inlet, a second inlet, a first drain port, and a second drain port being formed in the first face, a first outlet and a second outlet being formed in the second face, there being a first, fluid communication pathway/valve for controlling fluid flow between the first outlet and the second outlet, a second, fluid communication pathway/valve for controlling fluid flow between the first inlet and the first outlet, a third, fluid communication pathway/valve for controlling fluid flow between said first drain port and said first outlet, a fourth, fluid communication pathway/valve for controlling fluid flow between the second inlet and the second outlet, a fifth, fluid communication pathway/valve for controlling fluid flow between the second drain port and the second outlet, flow paths opening into the outlets sloping away from said second face.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: October 20, 1998
    Assignee: Keystone International Holdings Corp.
    Inventor: Alan F. Chou
  • Patent number: 5823508
    Abstract: A quick connect coupling connects a first fluid conduit to a second fluid conduit. The quick connect coupling includes a first single or multi-layer tube which is either metal or plastic and has a wall expanded radially outwardly adjacent a longitudinal end to define an integrally formed female portion of the coupling. The expanded end has at least two apertures extending through the wall adjacent the longitudinal end of the tube. A second tube which is either metal or plastic and has a first end with a radially outwardly projecting annular flange spaced longitudinally from the first end. The first end and the annular flange are engageable within the expanded end of the first tube. The first end of the second tube defines the male portion of the coupling. An elongated housing member has an outer periphery engageable within the expanded end of the first tube and has an aperture extending longitudinally therethrough for fluid communication between the first and second tubes.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: October 20, 1998
    Assignee: ITT Automotive, Inc.
    Inventor: Tao Nie
  • Patent number: 5819794
    Abstract: A hydraulic tensioner includes a disc check valve having a contoured surface that contacts a valve seat. The disc check valve provides a high frequency response. Additionally, the line contact between the disc and valve seat creates high contact pressure upon closing.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: October 13, 1998
    Assignee: Borg-Warner Automotive, Inc.
    Inventor: David P. Anderson
  • Patent number: 5819792
    Abstract: A check ball valve seat assembly for a diaphragm pump is provided that includes an annular carrier plate which accommodates an annular seat member. The assembly is sandwiched between two components of a diaphragm pump, such as a component for providing a retainer for the ball component of the check valve and a retainer providing a backing support for the check ball valve seat assembly. The annular seat member sealingly engages the ball retainer component and the support component of the pump which prevents the fluid that is being pumped from coming into contact with the annular carrier plate.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: October 13, 1998
    Assignee: Warren Rupp, Inc.
    Inventor: Steven M. Reynolds