Patents Examined by E Peavey
  • Patent number: 6536778
    Abstract: A gasket assembly is disclosed for use between adjacent flange surfaces which includes a reusable annular base plate having an inner periphery and opposed upper and lower surfaces, and replaceable a spring energized sealing ring releasably retained within the inner periphery of the base plate and including a resilient spring element surrounded by a deformable jacket that extends beyond the upper and lower surfaces of the base plate to conform to surface irregularities in the flange surfaces upon compression of the gasket between the flange surfaces.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: March 25, 2003
    Assignee: Garlock Sealing Technologies LLC
    Inventors: Vincent S. Behil, Jon A. Cox, James A. Martini
  • Patent number: 6533285
    Abstract: An improved sealing mechanism for a turbomachine such as a compressor for a gas turbine engine employs an abradable coating with a solid lubricant and metal alloy having a quasicrystalline phase.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: March 18, 2003
    Assignee: Caterpillar Inc
    Inventors: Yrene L. Nava, Zaher Z. Mutasim
  • Patent number: 6533284
    Abstract: A brush seal is provided between a first stationary component and a second rotating component. A cooling medium is provided through a plurality of jet nozzles for flow along an upstream surface portion of the brush seal bristles and along the rotating component surface adjoining the tips of the bristles. The cooling medium cools the brush seal bristles to a temperature below the temperature of the working fluid passing through the turbine. The jet nozzles may be arranged in the shroud or in the upstream backing plate of the brush seal to direct the cooling medium toward the juncture of the brush seal and the sealing surface.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: March 18, 2003
    Assignee: General Electric Company
    Inventors: Mahmut Faruk Aksit, Osman Saim Dinc
  • Patent number: 6527276
    Abstract: A sealing system for a gear reducer includes a compound sealing arrangement disposed in a bore of the reducer housing through which a rotating member extends. The sealing arrangement includes an outboard shielding seal and a inboard lip seal disposed adjacent to one another. The shielding seal includes an annular metallic shield and forms a labyrinth with the rotating member. An elastomeric sealing member is bonded to the shield. The inboard seal provides at least two additional points of contact for sealing the rotating member. The arrangement defined multiple barriers to liquid and solid contaminants and seals lubricant within the reducer housing. Similar arrangements may be provided about several rotating members, and about ends of members extending through the reducer housing, such as an output hub.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: March 4, 2003
    Assignee: Reliance Electric Technologies, LLC
    Inventors: Allyn E. Phillips, Larry D. Schafer
  • Patent number: 6527275
    Abstract: An elastomeric valve stem seal component is adapted for installation over a valve guide of an internal combustion engine. The seal component incorporates fabric reinforcement within an annular jacket body of the component. In one preferred form, the fabric is positioned intermediate two elastomeric layers of the seal body; i.e. between an inner layer and an outer layer. One preferred manufacturing method provides extrusion of a tube having a fabric reinforcement layer already provided between inner and outer layers. A cutting die incorporates a push ring adapted to move the component along a staged molding assembly process. A series of threaded core pins are utilized for conveyance of the component in the fabrication process, which includes extruding a rubber tube and cover over a series of threaded core pins, cutting a portion of the rubber tube to a predetermined length, and molding the predetermined length to produce the component.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: March 4, 2003
    Assignee: Dana Corporation
    Inventor: Mark A. Leimer
  • Patent number: 6520506
    Abstract: A radial shaft seal, which includes a ring-shaped, metal supporting body and a sealing lip disposed thereon, in order to separate a hydraulic side that is particularly under high pressure, from an atmospheric side, the sealing lip being pressed onto the shaft by an annular helical spring. In an uninstalled sealing ring, the working plane of the annular helical spring has a value x that is less than zero with respect to the working plane of the sealing edge, and in an installed sealing ring, the two working planes are approximately coplanar.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: February 18, 2003
    Assignee: Firma Carl Freudenberg
    Inventors: Hans Reinhardt, Rolf Stadler, Rolf Vogt
  • Patent number: 6520507
    Abstract: A sealing sleeve made of a polymer material especially for small-dimension installation spaces, the sealing sleeve having a retaining segment and a sealing segment, the retaining segment being connected to a supporting body and the sealing segment on the peripheral side encircling a shaft to be sealed or a barrel ring in a sealing manner under radial biasing and having on the side facing the shaft a surface profiling for recirculating the lubricant, wherein the connecting diameter (interior diameter (D) of the enclosing part (31)) is 1.0 to 1.05 times the shaft diameter (W) plus four times the sleeve thickness (d).
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: February 18, 2003
    Assignee: Firma Carl Freudenberg
    Inventors: Gilbert Pataille, Boris Tchilingurian
  • Patent number: 6517086
    Abstract: A spiral-wound gasket includes a plurality of tightly wound metal windings to form a core. The windings each have a Chervon cross-section, wherein V-notched undulations of each winding registers with an adjacent winding at said notches. The edges of the windings are welded to form a pre-assembled integral composite that is installed into a J-shaped outer wrap or cover. Finally, the cover is closed about the core so as to entirely cover and encapsulate the core. In a preferred form, both the core and outer cover are formed of stainless steel materials.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: February 11, 2003
    Assignee: Dana Corporation
    Inventor: James I. Jamrog
  • Patent number: 6516493
    Abstract: A guide rail 10 for a cable or Bowden cable window lifter with a guide area 1 with slide faces 11, 12 for holding and the sliding guide of a follower mounted displaceable on the guide rail 10 and with at least one fastening area 31, 32 for connecting the guide rail 10 to a fixing base of a vehicle door is made at least in part of plastics and has a reinforcement area 2 connected to the guide area 1 and with reinforcement elements 20 of ribs and/or webs which are moulded on a surface of the reinforcement area 2 preferably integral and substantially perpendicular to the surface of the reinforcement area 2. The at least one fixing area 31, 32 is part of the reinforcement area 2 and the rear sides of the slide faces 11, 12 of the guide area 1 are not directly connected to the reinforcement elements (20). (FIG. 1).
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: February 11, 2003
    Assignee: Brose Fahrzeugteile GmbH & Co. KG, Coburg
    Inventors: Tillmann Seliger, Craig Kinnell, Georg Kaemmler
  • Patent number: 6517076
    Abstract: The invention concerns a new seal system for resolving the problem of the contamination of special fluids carried in pumps and moreover providing improved sealing by virtue of its special geometry and design. According to the invention, one of the elements to be connected can replace the seal owing to the fact that the seal system includes a combination of two elements to be connected with a fine film ring, one of the elements to be connected having a geometry able to effect a double indentation on the film ring. The invention may be used in pumps and circuits for fluids of the semiconductor industry. The three elements of the seal system, including the pump body, tube, and film ring, may be made of PFA.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: February 11, 2003
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventor: Frederic S. Menage
  • Patent number: 6517084
    Abstract: A cylinder head gasket for an internal combustion engine is formed of a metal plate extending substantially throughout an entire area to be sealed. The metal plate has a plurality of holes corresponding to cylinder bores of the engine, a plurality of beads surrounding the respective holes, and at least one area situated between the holes adjacent to each other. Seal coatings are deposited above the beads in the area. The seal coating has heatproof characteristic and compressibility to strengthen surface pressure of the beads at the area.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: February 11, 2003
    Assignee: Ishikawa Gasket Co., Ltd.
    Inventor: Susumu Inamura
  • Patent number: 6511076
    Abstract: A gasket (1) is made by repetitively spirally winding a fiber (3) back on itself in a closed path. The gasket (1) so made has a multi-layer spiral winding (1) formed in a loop (5). The fiber (3) can be wound at a constant wrap rate to form a gasket with a uniform cross-section around the loop. Alternatively, the wrap rate can be varied, increased to increase cross-sectional bulk, and decreased to reduce cross-section bulk around the loop (5). Also, the spiral winding (7) can be applied over a core (13) of either strands of the fiber (3) or a dissimilar material providing a desired property such as resiliency, stiffness or others. For high temperature applications, a ceramic fiber (3) can be used. The gasket (1) can have any of various geometric configurations with or without a core (13).
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: January 28, 2003
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: Gerald Joseph Bruck, Mary Anne Alvin, Eugene E. Smeltzer
  • Patent number: 6505382
    Abstract: An improved hinge mechanism for use with a portable computing device is disclosed. According to one aspect, a hinge mechanism includes a first assembly with a pivot connection, a cam follower, and a second assembly. The cam follower is used to produce a cam action. The second assembly includes a cam. The cam follower cooperates with the cam to produce a moment about an axis associated with the latching hinge mechanism. The cam follower and the cam also cooperate to effectively latch the first assembly with respect to the second assembly when the cam is in a first position. According to another aspect, a display screen of the portable computing device can be rotateably-hinged to a base such that the display screen is set back from the base when the display screen is opened.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: January 14, 2003
    Assignee: Apple Computer, Inc.
    Inventors: Lawrence Lam, Chris J. Stringer, Roy Riccomini, Sung H. Kim, Mark Sorensen
  • Patent number: 6505839
    Abstract: There are disclosed a first gasketed cover which has excellent sealing properties and comprises a cover body composed of a thermoplastic resin and a gasket composed of a thermoplastic elastomer and integrated with the cover body; a second gasketed cover which has excellent sealing properties and is capable of preventing the generation of noises due the vibration of the cover and which comprises a cover body, a gasket composed of an elastic body and integratedly attached to the cover body, and a member composed of the elastic body of a type same as or different from that in the gasket and integratedly installed on at least part of the cover body plane portion excluding the gasket portion; an electronic equipment cover which is capable of preventing pressure difference between the inside and the outside thereof and which comprises a cover body and a membrane composed of an elastic body and installed on a hole placed on the plane portion of the cover body, in which the cover body is integrated with the membrane;
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: January 14, 2003
    Assignee: Bridgestone Corporation
    Inventors: Youichi Nishimuro, Shinichi Toyosawa, Kunio Machida
  • Patent number: 6502827
    Abstract: A sealing device (20, 80, 90), optionally in the form of a kit is provided for sealing about a rotatable member such as a shaft (22). The sealing device or the kit includes a follower housing (32) for mounting about the rotatable member (32) with an axial direction of the follower housing aligned with the rotational axis of the rotating member. Further, a follower (40, 40a, 40b) is provided for compressing a primary seal, such as packing (28), for sealing against the rotatable member. The follower is slidable within the follower housing generally in the axial direction and has sliding interfaces for interfacing with the follower housing and/or the rotatable member. There is also a chamber (68, 108) or simply a recess defined by the housing and a pressure face of the follower, with the chamber/recess being configured to receive fluid.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: January 7, 2003
    Assignee: GRM Distributors Limited
    Inventor: Michael Toner
  • Patent number: 6497415
    Abstract: The present seal system is in two parts. First is that of an elastomer energizer, which may be in the shape of a square ring, o-ring, or an other custom design for energizing the seal system. Second is that of a seal element having a particular geometry and composition. The geometric layout of the seal element ensures firm contact between the seal and groove bottom, independently of the seal pressure and radial position of the moving part, and concentrates contact forces against the moving part by means of a seal apex. In the installed state, the seal is forced into contact with the groove bottom by having an outer diameter matching or exceeding that of the groove bottom, and a radial height exceeding that of the housing groove. Further, the influence of the compression ring or energizer is balanced out by positioning the seal apex near the axial position of the center of the energizer.
    Type: Grant
    Filed: July 21, 2001
    Date of Patent: December 24, 2002
    Assignee: TI Specialty Polymer Products, Inc.
    Inventors: Larry J. Castleman, Gert Iverson
  • Patent number: 6494466
    Abstract: A seal used for a valve housing for a rotatable valve is received in an internal annular groove in the valve housing. The seal has the form of a resilient ring with an annular interior surface, an annular exterior surface, and axially opposite first and second circular end surfaces that extend radially between the annular interior surface and the annular exterior surface. The first and second circular end surfaces of the ring have annular lobes that project axially from the first and second end surfaces. The ends of the lobes are rounded. The annular groove of the valve housing has a center axis, a bottom wall and a pair of opposed side walls extending around the center axis. Slots are formed in the side walls of the groove. The lobes of the ring extend into the slots of the groove. The lobes of the seal and the slots of the groove are non-congruent and form voids between the seal and the groove.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: December 17, 2002
    Inventors: Thomas A. Hartman, Brian T. Hartman
  • Patent number: 6494460
    Abstract: Rotary barrier face seal of the non-contact type seal with helical grooves for a housing and a shaft, comprising means for introduction of an external barrier fluid towards the sealing interface. Said barrier fluid prevents sealed process fluid from entering past the sealing interface, thus providing sealing means for hazardous or repugnant fluids.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: December 17, 2002
    Inventor: Karl E. Uth
  • Patent number: 6494462
    Abstract: A hydrodynamic seal for location in a seal groove of a structure, such as a housing and for dynamic sealing engagement with a relatively rotatable surface. Elevated contact pressure zones caused by pressure manipulation features located at least partially on the dynamic sealing surface of the seal provide for controlled lubricant movement within the dynamic sealing interface between the seal and the relatively rotatable surface for enhanced lubrication of the seal even when the seal defines a wide sealing footprint with the relatively rotatable surface. The pressure manipulation feature may be defined by projections at least partially from the dynamic sealing lip which are compressed against the relatively rotatable surface or depressions which define pressure manipulating edges which react with the lubricant in the dynamic sealing interface responsive to relative rotation.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: December 17, 2002
    Assignee: Kalsi Engineering, Inc.
    Inventor: Lannie L. Dietle
  • Patent number: RE37988
    Abstract: A cookware lid having a handle where the handle supports a thermometer having a meat probe and an aperture to cause a whistling sound to warn that the internal temperature of a container has reached 180 degrees, eliminating possible carcinogens, e. Coli bacterium, salmonella and the like.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: February 18, 2003
    Assignee: Newell Operating Company
    Inventor: Tom Uss