Insulating Patents (Class 384/277)
  • Patent number: 10309308
    Abstract: A gas turbine engine includes a mid-turbine frame that includes an inner frame case. At least one spoke is connected to the inner frame case. At least one spoke includes a fluid passage that is in fluid communication with a channel on a radially inner end of the fluid passage. The channel is directed in a radially inward and circumferential direction. A cavity is located radially inward from the mid-turbine frame and is in fluid communication with the channel.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: June 4, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Anthony P. Cherolis, Jeffrey J. Lienau, Robert Newman, Cheng-Zhang Wang
  • Patent number: 10168647
    Abstract: A fixing device includes a cylindrical fixing member, a pressing member, a bearing and a heat insulating member. The fixing member is heated by a heat source. The pressing member forms a fixing nip between the pressing member and the fixing member. The bearing supports an end portion of the fixing member in a rotatable manner. The heat insulating member is interposed between the bearing and the end portion of the fixing member. The heat insulating member has a cylindrical part and a flange part. The cylindrical part has a slitting groove extending along an axis direction of the cylindrical part. The flange part extends outward in a radial direction of the cylindrical part from one end of the cylindrical part in the axis direction. At least one notch is formed along an outer circumferential edge of the flange part.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: January 1, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Masaru Takagi, Tomohiko Yamakawa
  • Patent number: 10161263
    Abstract: A bearing housing of an exhaust gas turbocharger may include an encircling and inwardly open groove arranged in the bearing housing. The bearing housing may also include a housing cover that may have at least one forming portion formed plastically into the groove. The housing cover may be secured on the bearing housing via the at least one forming portion.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: December 25, 2018
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventor: Volkhard Ammon
  • Patent number: 9995171
    Abstract: A mid-turbine frame for a gas turbine engine includes an outer frame case and an inner frame case. At least one spoke connects the outer frame case to the inner frame case. The spoke includes an inlet passage with at least one branch that extends in an axial direction.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: June 12, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Andrew D. Burdick, Anthony P. Cherolis, Christopher Treat, Jonathan Lemoine, Robert Russell Mayer, Jorge I. Farah, John H. Mosley
  • Patent number: 9920651
    Abstract: A mid-turbine frame for a gas turbine engine includes an inner frame case that includes a fluid passage. At least one spoke includes an inlet passage with at least one branch extending in an axial direction in fluid communication with the fluid passage in the inner frame case. A fitting fluidly connects the at least one branch to the fluid passage in the inner frame case. The fitting also includes a transfer tube connecting the cooling airflow passage to a cup boss. The transfer tube is fixed relative to the cylindrical portion and moveable relative to the cup boss. A swirler tube is in fluid communication with the fluid passage and is configured to direct cooling airflow in a radial inward and downstream direction.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: March 20, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Anthony P. Cherolis, John H. Mosley, Kalpendu J. Parekh, Christopher Treat, Alberto A. Mateo
  • Patent number: 9790860
    Abstract: A mid-turbine frame includes an inner frame case including a fluid passage. At least one hollow spoke is attached to the inner frame case. At least one hollow spoke includes an inlet passage. A transfer tube includes a first end that forms a first connection with at least one hollow spoke and a second end forms a second connection with the inner frame case.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: October 17, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Anthony P. Cherolis, Joshua Daniel Winn, Alberto A. Mateo
  • Patent number: 8931957
    Abstract: A bearing comprises a resin matrix filled with fluoropolymer, graphite, and other discrete particles of an additive material that is attached to a backing material. The specific selection and mix of fillers with the resin matrix provides the desired blend of bearing properties such as wear resistance, fatigue and erosion resistance and low friction whilst maintaining sufficient flexibility for being formed into flanged cylindrical geometries without detriment to the adherence of the lining to the backing. A method for manufacturing a bearing comprises depositing to a backing material a fluid polymer bearing material comprised of a resin matrix filled with fluoropolymer, various fillers, and discrete particles of an additive to form a continuous consolidated bearing material, and curing the lining material to bond the lining material onto the backing material.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: January 13, 2015
    Assignee: GGB, Inc.
    Inventors: Adrian Hardgrave, Raphael Chantossel
  • Patent number: 8845271
    Abstract: A bearing system for a turbocharger shaft comprising a rotatable elongated cylinder with axially spaced journal bearing surfaces on the inside diameter and a thrust face on each end. A sleeve on the shaft incorporates a flange on one end that transmits thrust force to one thrust face on the elongated cylinder. A flanged collar on the opposite end of the shaft transmits thrust force to the thrust face on the opposite end of the elongated cylinder. A radially extending flange on one end of the elongated cylinder transmits thrust forces to stationary housings.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: September 30, 2014
    Inventors: William E. Woollenweber, Joseph S. Delgado
  • Patent number: 8393791
    Abstract: A method of providing conditional electrical isolation for a bearing is disclosed. An inner race coupled to a first structure and an outer race coupled to a second structure are provided. An isolative means is provided for conditionally electrically isolating the first structure from the second structure.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: March 12, 2013
    Assignee: The Boeing Company
    Inventors: Gregory J. Thornton, Mark Barr, Mark E. Smith
  • Patent number: 7661884
    Abstract: A roller apparatus includes a rotating roller, a bushing frictionally supporting the rotating roller, a frame having a bushing hole into which a bushing is inserted and supporting the bushing, and a grounding member interposed between the bushing and the frame and grounding the bushing by press contacting with the bushing when the bushing is inserted into the bushing hole. Thus, the roller apparatus effectively grounds a bushing.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: February 16, 2010
    Assignee: Sansung Electronics Co., Ltd.
    Inventor: Yong-kon Jo
  • Patent number: 6679045
    Abstract: A bearing housing includes inner and outer shells through which a rotor shaft may extend. A service tube is fixedly joined to the inner shell and extends through a service aperture in the outer shell. A flexible coupling sealingly joins the service tube to the outer shell at the service aperture for permitting differential thermal movement between the inner and outer shells at the service tube.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: January 20, 2004
    Assignee: General Electric Company
    Inventors: Apostolos Pavlos Karafillis, Peter Walter Mueller, John Robert Ramsey
  • Patent number: 6390683
    Abstract: A heat insulation sleeve and a bearing device using the heat insulation sleeve capable of reducing generation of periodical or sudden noises generated in the periphery of a fixing device are described. A flange of the heat insulation sleeve does not break to be used for a fixing roller incorporated in an energy-saving type electrophotographic apparatus such as a laser beam printer or the like which is heated and cooled frequently at short intervals. Both ends of the slit overlap each other in an axial direction of the heat insulation sleeve. And the heat insulation sleeve has a projection formed at a peripheral end opposite to a flange-disposed side. The heat insulation sleeve is press-fitted on an inner ring of a rolling bearing.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: May 21, 2002
    Assignee: NTN Corporation
    Inventors: Kazuo Hirose, Satoru Fukuzawa
  • Patent number: 6170990
    Abstract: Corrosion is avoided in variable stator vanes through the use of an outer trunnion bushing that eliminates the galvanic corrosion potential of conventional bushings. The bushing has a plurality of layers arranged concentrically so as to include an innermost layer and an outermost layer. The innermost layer is made of a braided graphite composite laminate material, and the outermost layer is made of a non-galvanic material.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: January 9, 2001
    Assignee: General Electric Company
    Inventor: James T. Hawkins
  • Patent number: 6109794
    Abstract: A rolling contact bearing is described with a sealing device suitable to discharge the electrostatic currents which accumulate in a autovehicle; the sealing device (13, 32) has at least one sealing element (17, 37, 43) made of elastic conductive material integral with the stationary race (11) of the bearing and said sealing element engages, by sliding contact, a surface (21, 22, 40, 41, 33) integral with the rotating race (10, 35) of the bearing. The sealing element made of elastic conductive material (17, 37, 43) co-operates with the sealing device (13, 32) to form a hermetically sealed chamber (26, 24, 39, 44); said chamber contains electrically conductive grease and is placed between the outside environment and the bearing inner portions (14) which normally contain lubricant grease.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: August 29, 2000
    Assignee: SKF Industrie S.p.A.
    Inventors: Paolo Bertetti, Angelo Vignotto
  • Patent number: 5445457
    Abstract: A self adjusting bearing includes a load bearing having a cylindrical bore for carrying a rotating shaft. The load bearing is mounted for pivoting about an axis which is transverse to and intersects a longitudinal axis of the bore. The load bearing is supported by a pair of housings each of which carries a pivot bearing. A journal projecting radially from the load bearing engages the pivot bearing and an electrically insulating bushing is positioned between the housing and the pivot bearing to electrically isolate the main bearing from the housing. In an alternate embodiment, the insulating bushing is positioned between the load bearing journal and the pivot bushing so that the pivot bushing is also electrically isolated from the load bearing.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: August 29, 1995
    Assignee: Renk Aktiengesellschaft
    Inventor: Christian Schliephack
  • Patent number: 5430590
    Abstract: A spindle system is comprised or a journal and thrust air bearing. The journal bearing; has two sets of opposing groove areas. The thrust air bearing has two sets of spiral grooves. The thrust air bearing is gimballed to compensate for misaligment. A bias contact member is connected to the rotating member along the axis of rotation and provides electrical grounding, The spindle system is especially applicable to mounting recording disks in a data storage disk drive.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: July 4, 1995
    Assignee: International Business Machines Corporation
    Inventors: Norman G. Ainslie, David W. Albrecht, James W. Berberich, Daniel W. Chapman, Mats A. Engwall, Richard E. Mach, Zack D. Reynolds
  • Patent number: 5415478
    Abstract: The present invention relates to a bearing compartment for a turbomachine such as a gas turbine engine. The compartment includes a bearing compartment, to which is attached, on its front and rear sides, covers that allow for the passage of air through the compartment as well as past the compartment. In particular, the compartment includes a plurality of axially extending and circumferentially spaced apart sealed air cavities surrounding an oil cavity in the compartment; the bearing which supports a shaft extending through the engine is supported by the bearing. The compartment also includes a plurality of axially extending and circumferentially buffer air cavities surrounding the sealed air cavities, thereby providing additional insulate protection to the oil cavity.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: May 16, 1995
    Assignee: Pratt & Whitney Canada, Inc.
    Inventors: Anthony J. Matthews, Kenneth D. Parkman
  • Patent number: 5395171
    Abstract: A one-piece body portion injection molded of polysulfone or similar polymer has mounting portions for securing the bearing housing to a support surface and a transverse bore having a spherically concave annular bearing seat for tiltably supporting a convex outer ring of a bearing. Diametrically opposed axially extending recesses within the bearing seat facilitate insertion of the outer race ring after molding of the body portion. The bearing housing has significantly improved stiffness and resistance to moisture, creep, thermal deflection, chipping and corrosion, making the bearing housing particularly suited for use in the food processing industry.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: March 7, 1995
    Assignee: The Torrington Company
    Inventor: Walter P. Waskiewicz
  • Patent number: 5328272
    Abstract: A spindle system is comprised of a journal and thrust air bearing. The journal bearing has two sets of opposing groove areas. The thrust air bearing has two sets of spiral grooves. The thrust air bearing is gimballed to compensate for misalignment. A bias contact member is connected to the rotating member along the axis of rotation and provides electrical grounding. The spindle system is especially applicable to mounting recording disks in a data storage disk drive.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: July 12, 1994
    Assignee: International Business Machines
    Inventors: Norman G. Ainslie, David W. Albrecht, James W. Berberich, Daniel W. Chapman, Mats A. Engwall, Richard E. Mach, Zack D. Reynolds
  • Patent number: 5321329
    Abstract: A permanent magnet shaft bearing includes a shaft bearing bushing and a flange bearing bushing which are magnetized to saturation. The outer surface of the shaft bearing bushing is magnetized to have the same polarity as the inner surface of the flange bearing bushing so that both bearing surfaces repel one another. Such repulsion creates a space between the bearing surfaces so that no physical contact is present. Both the flange bearing bushing and the shaft bearing bushing are tapered to mate each other. The shaft load requirements determine the magnetic flux density, the mass of the bearing bushings, the composition of the bearing bushings, and the proper angle of the taper. An insulating sleeve protects the bearing bushings from heat transfer in order to help retain permanent magnetization. A magnetically impermeable shield protects the bearing bushings from attracting metal particles.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: June 14, 1994
    Assignee: Hovorka Patent Trust
    Inventor: Jiri J. Hovorka
  • Patent number: 5069559
    Abstract: A spherical bearing with selectable electrical conductivity includes a bearing body having a spherical supporting surface, a layer of electrically insulating material and a housing having a concave spherical seating surface which form a ball joint having a center around which the bearing body may swivel relative to the housing when the housing is not clamped against the insulating layer and bearing body with the force required for operation of the bearing. A first positioning pin of electrically conductive material projects radially through the insulating layer and into a recess formed in the housing. Electrical connection between the housing and the bearing body is provided by a compression spring which bears against the recess and the first positioning pin. A second positioning pin of electrically insulating material may be selected in lieu of the first positioning pin and spring to provide a bearing configuration wherein the body is insulated from the housing.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: December 3, 1991
    Assignee: Renk Aktiengesellschaft
    Inventors: Hans Muller, Joachim Trapp
  • Patent number: 5062503
    Abstract: The ablative bushing (40, 140, 240) is disposed between a torque tube pedestal (18) and an axle (30) of an aircraft. The ablative bushing (40, 140) encircles an axle bushing (26) located around the axle (30), so as to be disposed between the torque tube pedestal (18) and axle bushing (26). The ablative bushing (240) may also be located between a torque tube pedestal flange (114) and an axle flange (35). The ablative bushing (40, 140, 240) ablates at a predetermined temperature in order to introduce an air gap between the torque tube pedestal (18) and axle (30) to prevent excessive heat flow to the axle (30) during a rejected take-off stop.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: November 5, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Raymond J. Black, Benjamin C. Han
  • Patent number: 5040954
    Abstract: In an in-tank type motor-operated pump having a brush motor (1), a bearing (15) for rotatably holding a rotor shaft (5) is covered with a heat resistant insulating material (25) and is mounted in a bracket (22) in which brushes (4) are slidably held, thereby preventing an accidental shortcircuit between brushes (4) via the bearing (15) at the time when the bracket (22) melts with heat.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: August 20, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Shingo Iwai
  • Patent number: 4964015
    Abstract: A chair for conducting the electrostatic charge of an occupant to the floor on which the chair rests, with the chair seat carried on a support unit which permits rotation of the seat and adjustment of the height of the seat above the floor. The support unit includes an outer sleeve and an inner sleeve moving vertically relative to the outer sleeve, and an electrical resistor connected between the inner and outer sleeves and in sliding contact with at least one of the sleeves, typically by means of a spring finger strip mounted in a groove of a bushing or collar.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: October 16, 1990
    Assignee: Zero Corporation
    Inventors: Richard L. Crooker, Vincent J. Fitzgerald, Jeffery D. Campbell
  • Patent number: 4896975
    Abstract: A ceramic shaft machinery element having an incorporated cooled bearing runner surface providing superior support for the ceramic shaft.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: January 30, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Frank A. Bescoby, David M. Kotchick, Stanley C. Pollitt
  • Patent number: 4717870
    Abstract: An improved fabric moisture monitoring system and method particularly adapted for use on a slasher unit comprises utilizing the delivery roller associated with the conventional slasher unit to facilitate moisture monitoring. Both ends of the delivery roller are electrically isolated and either end is connected to a moisture monitoring apparatus.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: January 5, 1988
    Assignee: Burlington Industries, Inc.
    Inventor: James W. Vuncannon
  • Patent number: 4715732
    Abstract: An air cooled bearing assembly for the armature shaft of an electric motor comprises a heat sink with an axial bore and spaced outwardly extending fins along its external surface. The fins are of a greater depth over part of their length and the junction between the parts of different fin depth is round to form a seating for a resilient mounting member. Located in the bore is a bearing sleeve which is an interference fit in the bore.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: December 29, 1987
    Assignee: Black & Decker Inc.
    Inventor: Anthony J. Sanders
  • Patent number: 4702526
    Abstract: A hub assembly for a drivable wheel of a motor vehicle, with a hub member 10, a bearing assembly with an outer race 20 and an inner race 21, and a constant velocity universal joint with an outer member 16 and inner member 17, wherein torque is transmitted between the hub member and joint outer member through the intermediary of an element 23 of thermally insulating material. The arrangement is such that the thermally insulating element is loaded substantially only in compression, enabling the use of efficient thermal insulators.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: October 27, 1987
    Assignee: Hardy Spicer Limited
    Inventor: Ivor G. Sankey
  • Patent number: 4410285
    Abstract: An article comprising a component of ceramic material and a metal component has a metal felt located between opposed faces of the two components, the metal felt being permanently joined to both the ceramic face and the metal face to join the two components together. The metal felt may be brazed to both components, the brazing alloy being one which chemically combines with the ceramic material. The brazing alloy may be in the form of a foil placed between the metal felt and each of the components, and the brazing may take place in a vacuum.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: October 18, 1983
    Assignee: MTU Motoren Und Turbinen Union Munchen GmbH
    Inventors: Franz Strasser, Ludwig Steinhauser, Bernd Kugenbuch