Nonmetal Patents (Class 464/903)
  • Publication number: 20150038636
    Abstract: The invention relates to a composition, especially for an elastomer body of an elastic coupling, comprising the following components:—polyisoprene rubber having a proportion of 20 to 30% by weight,—butadiene rubber having a proportion of 20 to 30% by weight, based in each case on the total weight of the composition. The invention further relates to the use of the composition for production of an elastomer body, especially for an elastic coupling, preferably elastic shaft coupling. The invention additionally relates to an elastomer body, especially for an elastic coupling, which comprises the composition. The invention also relates to a coupling comprising the composition or the elastomer body.
    Type: Application
    Filed: March 8, 2013
    Publication date: February 5, 2015
    Inventors: Thomas Kamps, Volker Wegener, Irina Gutjar, Axel Blaurock
  • Patent number: 8622844
    Abstract: A component of a disc drive has a coating of a predetermined length on its surface, the coating having at least two separate tapered regions applied in independent steps, the at least two separate tapered regions each having a length that is less than the predetermined length of the component surface. When the component is a shaft of a spindle motor, the ends of the shaft are masked before the tapered regions of coating are applied, and the thickness of the masks covering the shaft ends is varied to control a taper of tapered regions.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: January 7, 2014
    Assignee: Seagate Technology LLC
    Inventors: Mohammad M. Ameen, Jerry Weingord, Thaveesinn Vasavakul, Kenneth Cornyn
  • Patent number: 8398493
    Abstract: A torque transmission device includes a shaft, particularly a drive shaft for a drive train of a vehicle, and at least one coupling element which is connected with an end of the shaft. The shaft and the at least one coupling element each consists completely or at least partly of a fiber-reinforced plastic material.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: March 19, 2013
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Dirk Dullenkopf, Wolfgang Kornprobst, Helmut Schuermann, Patrick Tichelmann
  • Patent number: 8033919
    Abstract: An elastic shaft coupling has a drive-side interface and an output-side mechanical interface. Both interfaces are intended in each case for connecting the shaft coupling to an adjacent machine element. The shaft coupling has at least two elastic rubber elements which are connected behind one another between the drive-side and the output-side interfaces and the axial material thickness of which increases in each case at a growing radial spacing from the center axis of the shaft coupling. To reduce the amount of rubber of the shaft coupling with retention of its elastic properties, the respective rubber elements are of non-uniform configuration with regard to their torsional rigidity and to be precise are so non-uniform that the torsional rigidity of one of the two rubber elements is always at least one and a half times as great as the torsional rigidity of the other rubber element.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: October 11, 2011
    Assignee: Hackforth GmbH
    Inventor: John Baikie
  • Patent number: 7763336
    Abstract: A flexible shaft coupling sleeve comprising a sleeve shaped body having a central annular portion and a coupling receiving portion at each of two opposing sleeve ends, and a coupling device incorporating such sleeve. The sleeve's coupling receiving portions include axially extending teeth on their inner surfaces. The flexible shaft coupling sleeve is formed of a polyurethane elastomer composition.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: July 27, 2010
    Assignee: The Gates Corporation
    Inventors: Arthur Jack Clarke, Richard Bell, Joseph R. Duke, Jr., William W. L. Wu
  • Patent number: 7366443
    Abstract: A constant-velocity joint includes an outer ring formed with an annular space therein having an opening at one end thereof. The annular space is defined by a radially outer wall and a radially inner wall. One of the radially inner and outer walls is formed with three axially extending track grooves circumferentially spaced apart from each other by 120 degrees. A cage is inserted in the annular space with one end thereof protruding from the opening of the annular space. A second shaft is provided on the one end of the cage. Balls are retained by the cage and adapted to roll in the track grooves. At least one of the outer ring and the cage is formed of a synthetic resin.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: April 29, 2008
    Assignee: NTN Corporation
    Inventors: Masaaki Ohashi, Satoru Fukuzawa
  • Patent number: 7297065
    Abstract: A sealing component constructed of silicone compound for use in high-temperature, high-speed and high-angle applications is disclosed. The disclosed silicone material may also be reinforced with fibers for added stiffness and stability.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: November 20, 2007
    Assignee: GKN Driveline North America, Inc.
    Inventor: Shen-Ling Allen Wang
  • Patent number: 7235018
    Abstract: A convoluted boot for sealing an annular gap between two parts which are connected to one another in a rotationally fast way, which can be articulated relative to one another and which are axially displaceable relative to one another, especially of a constant velocity plunging joint, consisting of includes a low-strain polymer hard material having a first larger collar (11) to be secured to a first component, a second smaller collar (12) to be secured to a second component and a plurality of annular fold units which extend between the first collar and the second collar and which, in the form of the outer folds consisting of have two annular flanks (31, 32), and form a fold peak (21) between two fold valleys (22). In a first group (A) of at least three annular folds with a connection to the first collar 11 annular folds, the diameters of the fold peaks (21) and fold valleys (22) decrease in the direction from the first collar to the second collar.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: June 26, 2007
    Assignee: GKN Driveline International GmbH
    Inventors: Markus Deisinger, Thomas Schmidt, Joachim Wette, Thorsten Scholtz
  • Patent number: 7140969
    Abstract: A universal joint having a first yoke including a body portion and an overmold portion. The body portion includes a base and a pair of arms that extend from the base. A trunnion assembly is coupled to the first yoke and extends between the arms. A second yoke is coupled to the trunnion assembly.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: November 28, 2006
    Assignee: American Axle & Manufacturing, Inc.
    Inventor: Bryan Paul Prucher
  • Patent number: 6875113
    Abstract: A torsional vibration damper mountable to a rotatable shaft. The torsional vibration damper is a composite structure including a body formed of a polymer, such as a glass-reinforced polyamide, that surrounds an insert formed of a structurally-rigid material, such as a metal. The insert includes one or more support flanges that extend radially outward into the polymer body. When the torsional vibration damper is removed from the rotatable shaft, axial forces applied to the damper are transferred by the support flanges to the insert such that the polymer body remains substantially stress-free. In addition to, or instead of, the support flanges, the insert may include torque-locking structure that locks the polymer annular body with the insert to prevent relative rotation therebetween.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: April 5, 2005
    Assignee: Eagle-Picher Industries, Inc.
    Inventor: Jeffrey W. Nichols
  • Patent number: 6843727
    Abstract: A flexible coupling assembly adapted for mounting on the ends of a shaft in coaxial alignment. The coupling includes a pair of annular hubs. A plurality of radially outwardly opening receptacles are spaced around the circumferential edge of each hub. A molded flexible belt is wrapped around the circumferential edge of both hubs, and has a plurality of spaced resilient teeth extending from one side of the belt. Each tooth is received in a pair of aligned receptacles formed in the hubs. The belt is molded with a length greater than the circumference of the circumferential edge, and the belt is cut to a length such that there is no more than one tooth per pair of receptacles. An annular retainer is slipped over the belt to retain the teeth in the receptacles. The retainer is held over the belt by at least one deformable pin extending from another side of the belt, and the pin is received in a circumferential groove formed on an inner surface of the annular retainer to retain the retainer over the belt.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: January 18, 2005
    Assignee: Rexnord Industries, Inc.
    Inventors: Louis F. Counter, Terence Voss, William R. Hubiak
  • Patent number: 6835263
    Abstract: An undercritical drive shaft and a method of producing the undercritical drive shaft from fiber composite material is disclosed. The drive shaft, which is produced of fiber composite material and is to be used as an undercritically operating shaft, has a high damage tolerance with respect to resistance to torsion and the manufacturing process requires lower expenditures. For the drive shaft, the fiber composite material consists of several successively individually wound-up webs of prepreg. For the method of producing the drive shaft from fiber composite material, as the fiber material, the web-shaped prepreg is wound onto the winding spindle and this prepreg is deaerated and simultaneously compressed by the winding-on of a thermoplastic woven band which is prestressed in a defined manner. The thermoplastic woven band is unwound again and additional prepreg layers are then wound up which are then deaerated and compressed in the same manner by a thermoplastic woven band.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: December 28, 2004
    Assignee: Eurocopter Deutschland GmbH
    Inventors: Anton Bergmann, Marinus Sedlmeier
  • Patent number: 6796739
    Abstract: A torsional joint assembly and method of making same having members of formed of dissimilar materials bonded together at calculated angles to result in essentially singularity-free joints.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: September 28, 2004
    Assignee: Reliance Electric Technologies, LLC
    Inventor: Boris A. Shoykhet
  • Patent number: 6749518
    Abstract: A method is provided for assembling a shaft having a metal matrix composite mid shaft and monolithic high strength alloy forward and aft shafts. The forward and aft shafts are each inertia friction welded to separate annular transition pieces which include a barrier layer operative to prevent the formation of intermetallic compounds. Special tooling is used to avoid applying shear stresses to the transition piece during welding. The welded forward and aft subassemblies are subsequently heat treated before inertia friction welding them to the mid shaft.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: June 15, 2004
    Assignee: General Electric Company
    Inventors: Charles William Carrier, Gary Mac Holloway, Charles Robert Wojciechowski
  • Patent number: 6705946
    Abstract: A shaft coupling is made from carbon-carbon composite to achieve significantly higher temperature capability, combined with lubricity and high strength, allowing its use in hot, non-lubricated sections of gas turbine engines, where previously, these couplings could not be used. The coupler may be cylindrical for joining the facing ends of co-axial shafts is made from carbon-carbon composite with a female spline in a coupling bore and a male spline on the coupling outer surface. Variations of the torque carrying geometry include involute splines, circular splines, square drive, hex drives, serrations, or double-D drives. By fabricating the coupler from carbon-carbon (or carbon-graphite) composite, metallic shaft mating splines are provided with a coupler that has exceptionally high temperature capabilities (>2500 F.), high strength, and can be impregnated with graphite or other dry lubricants to reduce frictional heat generation and reduce spline wear.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: March 16, 2004
    Assignee: Honeywell International, Inc.
    Inventor: Eric B. Bridges
  • Patent number: 6702681
    Abstract: A torsionally flexible coupling having a rotational axis (1), including a first ring (2) and a second ring (3, 4), which enclose each other [one enclosing the other] at a radial distance, at least one ring-shaped first spring element (5) made of elastomeric material being positioned in the annular clearance (13) formed by the radial distance; and a belt pulley (7) being fastened, relatively having torsional flexibility, to at least one of the rings (2; 3, 4) with the aid of a second spring element (6) made of an elastomeric material, and being supported on at least one of the rings (2; 3, 4) at least in the radial direction with the aid of a sliding bearing (8, 9); the sliding bearing (8, 9) being formed by a rubber layer (9) having at least two embedded sliding rings (8).
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: March 9, 2004
    Assignee: Carl Freudenberg
    Inventor: Winfried Ochs
  • Patent number: 6669568
    Abstract: A driving coupling for the torque transmission in the transmission line of a motor vehicle includes a shaft-hub coupling provided with longitudinal toothings for the releasable coupling of a crankshaft with a coaxially arranged hydrodynamic torque converter. The longitudinal toothings of the shaft-hub coupling have tooth cross-sections which become larger and smaller respectively in the longitudinal direction of the teeth. An elastomer layer is situated at least between the tooth flanks of the shaft and the hub which transmit the torque.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: December 30, 2003
    Assignees: Bayerische Motoren Werke AG, Mannesmann Sachs AG, ZF Friedrichshafen AG
    Inventors: Josef Neuner, Roland Gollmer, Karl-Heinz Hodermann, Marco Noack, Renate Walk, Wolfgang Kundermann
  • Patent number: 6569021
    Abstract: The invention relates to an impregnating agent for a convoluted boot consisting of a thermplastic or elastomer material and used for covering the chamber of a joint, especially a rotating joint subjected to large articulation angles, which joint chamber is filled with a lubricant, said convoluted boot comprising a plurality of folds and two end collars, with the surfaces of the convoluted boot wall contacting one another when the joint is subjected to large articulation angles. It is the object of the invention to reduce the wear and eliminate squeaking symptoms of convoluted boots treated with the inventive impregnating agent. In accordance with the invention, the objective is achieved in that the impregnating agent contains a carrier fluid, an oil dissolved in the carrier fluid and having a molecular weight of >200, and a wetting agent which is soluble in oil and which reduces the surface tension of the oil.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: May 27, 2003
    Assignee: GKN Automotive AG
    Inventors: Thomas Schmidt, Joachim Wette, Thomas Schafferus, Herbert Konegen, Hans Schreiber
  • Patent number: 6520859
    Abstract: A universal joint includes a cross member having a plurality of trunnions extending outwardly therefrom. A hollow bearing cup is disposed about the end of each of the trunnions. Each of the bearing cups has an open end, a closed end, and an inner surface that is disposed about a bearing surface formed on the trunnion. An insert is disposed between the bearing surface of the trunnion and the inner surface of the bearing cup provided thereon. In a first embodiment, an annular groove is formed in the inner surface of the bearing cup that receives the insert therein. In a second embodiment, the insert is disposed between the cylindrical bearing surface of the trunnion and the cylindrical inner surface of the bearing cup. The insert is formed from either a ceramic material or a composite material. The bearing cup may be formed from a metallic material that is molded about the insert.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: February 18, 2003
    Assignee: Spicer Driveshaft, Inc.
    Inventors: Daniel E. Beitzel, Scott A. Dunn
  • Publication number: 20020193168
    Abstract: A propeller shaft has a dynamic damper composed of a cylindrical mass member and an elastic body surrounding the mass member. The elastic body has an outside diameter larger than the inside diameter of a tubular body, and is held therein by compression and elastic deformation. The elastic body has a number of radially outwardly extending protrusions and its compression is such that a frictional resistance produced between its protrusions and the inner surface of the tubular body may be larger than a force causing the withdrawal of the damper from the tubular body. The damper can, thus, be placed in position without relying upon any adhesive, or special holding member, or any special bonding job.
    Type: Application
    Filed: March 28, 2001
    Publication date: December 19, 2002
    Inventors: Kazuoki Hosooka, Makoto Suzuki
  • Patent number: 6464589
    Abstract: A flexible shaft couple has two terminal components and one medial component. Each terminal component has a shaft bore open to a nether end face and a transverse extension of an opposed adjacent end face possessing an external substantially cylindrical surface spaced apart from by a reduced width foot. The medial component has two perpendicular transverse cavities each possessing an internal substantially cylindrical surface open to one of two opposed adjacent end faces. Both external and both internal cylindrical surfaces include an equivalent diameter greater than the width of the opening of each transverse cavity which exceeds the width of the reduced width foot. Two perpendicular substantially cylindrical engagements are provided which together accommodate large lateral and large angular shaft misalignments. Each terminal component has a body molded by a radially aligned two part mold leaving a part line bisecting the transverse extension and the reduced width foot.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: October 15, 2002
    Inventor: Kinzou Shinozuka
  • Patent number: 6340333
    Abstract: Torque transmitting, molded flexible shaft assemblies having two rigid, tubular, shell-like sections that are filled and linked together by a flexible material. The two sections are placed in a mold such that they are separated by an elongated cavity. A flexible-when-hardened moldable material such as polyurethane then fills the mold such that the two sections and the elongated cavity are filled by the moldable material.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: January 22, 2002
    Assignee: Xerox Corporation
    Inventor: Robert D. Russell
  • Patent number: 6336986
    Abstract: A hybrid shaft adapted to be used as a drive shaft of an automobile transmission system comprises a unitary cylindrical hybrid stem formed from a metal tube and a composite material layer adhered to the metal tube. The metal tube provides torque-transmission strength to the hybrid shaft while the composite material layer increases a specific modulus of the hybrid shaft. The hybrid shaft is produced by stacking a composite material layer on a metal tube, putting a thermal shrinkage tube on the composite material layer, and co-curing the metal tube and the composite material layer while exerting a longitudinal compression force on the metal tube to prevent it from being thermally expanded.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: January 8, 2002
    Assignee: Korea Advanced Institute Science Technology
    Inventors: Dai Gil Lee, Durk Hyun Cho, Jin Kyung Choi, Seong Sik Cheon, Seung Hwan Chang, Je Hoon Oh, Kyung Geun Bang, Jae Wook Kwon, Po Jin Kim, Jin Kook Kim
  • Patent number: 6287209
    Abstract: A propeller shaft has a metal pipe (1) with a joint element (3) joined at an end thereof. A fiber reinforced plastic layer (5) having a thickness that achieves a flexural rigidity satisfying a required natural bending frequency is formed on an outer circumference of the metal pipe (1) satisfying a static torsional strength required as a propeller shaft. The fiber reinforced plastic layer (5) has an interface strength between the reinforcing fiber and the matrix within a range of 20 to 200 MPa as measured by the microdroplet method.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: September 11, 2001
    Assignees: NTN Corporation, Mitsubishi Rayon Kabushiki Kaisha
    Inventors: Tatsuo Nakajima, Yukihiro Watanabe, Kazuhiko Yoshida, Hitoshi Kodama, Tsuneo Takano
  • Patent number: 6283868
    Abstract: A flexible shaft coupling element comprising a sleeve shaped body having a central annular portion and a coupling receiving portion at each of two opposing sleeve ends. The coupling receiving portions include axially extending teeth on their inner surfaces. The flexible shaft coupling element is characterized in that the annular portion possesses a torsional shear capacity and the area defining the axially extending teeth possesses a shear capacity, and the tooth shear capacity exceeds the annular portion torsional shear capacity.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: September 4, 2001
    Assignee: The Gates Corporation
    Inventors: Arthur Jack Clarke, Kevin John Francis Whitfield
  • Patent number: 6264566
    Abstract: A universal joint assembly includes a cross having a plurality of trunnions extending outwardly therefrom. A bearing cup is disposed about each of the trunnions, and a plurality of needle bearings is disposed between each of the bearing cups and its associated trunnion to facilitate relative rotational movement. A thrust washer is disposed between the outer end surface of each of the trunnions and its associated bearing cup. Each of the thrust washers is generally annular in shape, including a first inner annular region surrounded by a second outer annular region. The inner region is sized to extend between the outer end surface of the trunnion and the associated inner surface of the end portion of the bearing cup. The outer region is sized to extend between the outer ends of the needle bearings and the associated inner A surfaces of the end portions of the bearing cup. The outer region is connected to and supported on the inner region by a plurality of radially extending legs.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: July 24, 2001
    Assignee: Dana Corporation
    Inventors: Andrew L. Nieman, Leon W. Valencic
  • Patent number: 6234911
    Abstract: A noise reduction structure for an aluminum-based driveshaft tube includes a generally cylindrical member having a predetermined length. The noise reduction structure is disposed within a driveshaft tube in a press fit relationship with the inner surface of the tube. In general, the noise reduction structure is positioned within the driveshaft tube at a location where the amplitude of a standing wave caused by the reflection of the sound waves back and forth along the driveshaft tube is at its maximum value. The length of the noise reduction structure may be about 10% or less of the value of the length of the driveshaft tube. In a first embodiment, the noise reduction structure is formed from a polymeric foam material having a density of less than about 10 lb/ft3. Preferably, the material has a density in the range of about 2 lb/ft3 to 10 lb/ft3, and more preferably, in the range of about 3 lb/ft3 to 7 lb/ft3.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: May 22, 2001
    Assignee: Spicer Driveshaft, Inc.
    Inventors: Douglas E. Breese, Kellie L. Stevens, Christopher C. Cheney
  • Patent number: 6171194
    Abstract: To substantially increase a slide torque of a fitting type damper formed by press-fitting an elastic body of a rubber-like elastic material between a hub and a massive body from either direction of a shaft. Polymethylene-polyphenyl-polyisocyanate is interposed as a non-slide agent between a hub including a metallic part and an inner boundary of an elastic body or between a massive body including a metallic part and an outer boundary of the elastic body.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: January 9, 2001
    Assignee: Nok-Vibracoustic Co., Ltd.
    Inventors: Hiroaki Haga, Tsutomu Ishida
  • Patent number: 6129477
    Abstract: A rotor support for use in superconducting motors including first and second torque tubes secured between first and second rotor shaft ends and a rotor winding supporter wherein each tube consists of a thermally insulating composite conduit having first and second ends and first and second couplers adhesively bonded to the first and second ends along tapered securing surfaces resulting in essentially singularity-free joints between the conduit and couplers despite disparate shear modulus.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: October 10, 2000
    Assignee: Reliance Electric Technologies, LLC
    Inventor: Boris A. Shoykhet
  • Patent number: 6126770
    Abstract: The present invention provides a method for fabricating spindle and roller empying rotation axes made of a composite material, which comprises a step of inserting a front metal part and an end metal part into a front and an end of a rotation axis made of a composite material. In accordance with the present invention, spindle and roller with easy control of balancing and less inertia on rotation, can be fabricated, by employing rotation axes made of a composite material which has a high stiffness, superior torque transfer capability and natural frequency.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: October 3, 2000
    Assignee: Korea Advanced Institute of Science & Technology
    Inventors: Dai-Gil Lee, Hyun-Surk Kim, Young-Goo Kim, Jin-Kyung Choi, Seong-Sik Cheon, Durk-Hyun Cho
  • Patent number: 6117015
    Abstract: Disclosed herein is an elastomeric coupling for transmitting torque between two shafts approximately aligned on a shaft axis, which coupling comprises a composite member including an elastomeric center element, and a shoe fabricated from a reinforced plastic material and including a first portion bonded to the center element, and a second portion extending axially from the first portion and from the center element, including apertured metallic inserts, and being adapted to be connected to one of the shafts.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: September 12, 2000
    Assignee: Rexnord Corporation
    Inventors: William E. Ryan, Donald W. Hindman
  • Patent number: 6117017
    Abstract: An insertable axially, radially and angularly movable toothed coupling to enable the elastic transfer of torque from a drive motor to a machine which is to be driven, the coupling including a fastening flange (1), which, by means of an annular element (2) made of elastomeric material and subjected to torsional shear, is connected to an internally toothed coupling sleeve (3) made of plastic, by vulcanization, in such a way that the input and acceptance of the torque takes place at the spline engagement of the driving and driven elements, a coupling hub (4) made of steel which, by means of external teeth (5), grips the teeth of the coupling sleeve and, by means of internal splines (6), is connected form-fittingly and detachably to the shaft of the machine to be driven, so that the coupling hub and the coupling sleeve are adjacent to each other with annular offset surfaces (7, 8) and are secured against axial displacement by means of a retaining ring (9).
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: September 12, 2000
    Assignee: KTR Kupplungstechnik GmbH
    Inventor: Josef Schurhorster
  • Patent number: 6072252
    Abstract: A composite electric motor shaft including axially distributed metallic and nonmetallic sections joined together exhibit increased mechanical damping, increased rotor critical speed, improved corrosion resistance and improved motor performance.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: June 6, 2000
    Assignee: Electric Boat Corporation
    Inventors: Piet Van Dine, Vladimir Odessky, Brian E. Spencer, James S. Smith, William R. Harring
  • Patent number: 5922003
    Abstract: The present invention is generally characterized in an angled rotary tissue cutting instrument including an outer blade assembly, having a rigid tubular member with proximal and distal portions connected by a bend, and an inner blade assembly rotatably disposed within the outer blade assembly and including a tubular drive shaft at a proximal end, a cutting tip at a distal end, and a flexible coupling disposed between the drive shaft and the cutting tip. The drive shaft and cutting tip include neck portions which are disposed telescopically within proximal and distal ends of the coupling.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: July 13, 1999
    Assignee: Xomed Surgical Products, Inc.
    Inventors: Stephanie B. Anctil, Gary Peters
  • Patent number: 5904622
    Abstract: A noise reduction structure for a vehicle driveshaft assembly insures that each of the interior chambers of the driveshaft tube is properly vented during use. The noise reduction structure is a solid member having a predetermined length and a cross sectional shape which corresponds generally to the cross sectional shape of the driveshaft tube. Preferably, the noise reduction structure has an outer diameter which is approximately equal to, or slightly larger than, the inner diameter of the driveshaft tube. As such, the noise reduction structure engages the inner surface of the driveshaft tube in a light press fit relationship. Each noise reduction structure has a passageway, groove, or other opening formed therein which extends axially throughout its length. In a preferred embodiment, an axially-extending groove is formed on the outer circumferential surface of the noise reduction structure.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: May 18, 1999
    Assignee: Dana Corporation
    Inventors: Douglas E. Breese, Kellie L. Stevens
  • Patent number: 5788473
    Abstract: A coupling for transferring power from a drive shaft to a driven shaft includes a first coupling member, having a substantially cylindrical body, with a cylindrical bore at a first end, longitudinal key arrangement within the bore for being rotatably driven by a keyed motor drive shaft, and a solid cylindrical portion at a second end having a distal face with an alternating plurality of longitudinally projecting drive lugs and longitudinally recessed pockets; and a second coupling member for installation on a driven shaft having a substantially cylindrical body with a first proximal face, providing a non-cylindrical socket means for receiving and for drivably engaging the driven shaft, and a second distal face with an alternating plurality of longitudinally recessed pockets and longitudinally projecting drive lugs, the longitudinally projecting drive lugs of the first coupling member fitting into the longitudinally recessed pockets of the second coupling member, and vice versa, to complete the coupling.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: August 4, 1998
    Assignee: Ingersoll-Dresser Pump Company
    Inventors: Frederic W. Buse, Mark D. Warner
  • Patent number: 5724715
    Abstract: A composite flange providing the low cost and bonding capability of molded flanges with the torque capacity near that of metal flanges. Multiple layers of braided fiberglass enveloping a fiberglass ring are placed into a mold of the desired shape. After the mold is closed, liquid resin is injected and the flange is cured to the desired state. After demolding, the flange is machined as necessary for installation onto the drive shaft.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: March 10, 1998
    Assignee: Addax, Inc.
    Inventors: Duane V. Byerly, George F. Olson, James T. Heard
  • Patent number: 5685933
    Abstract: An FRP drive shaft wherein the shaft body and the flanges are formed in a body and a method of manufacturing the same are disclosed. The shaft body is formed by winding a resin impregnated fiber on a mandrel having pins on its circumferential surface while hooking the fiber on the pins. The fiber is then circumferentially wound to form a hoop-like reinforcing band near each end of the shaft body. After the pins and end parts of the mandrel are removed, each end portion of the shaft body is expanded by a pressing mold to form a flange. After hot setting, the remaining part of the mandrel is removed.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: November 11, 1997
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tadao Ohta, Shigenori Tamaki, Motohiro Mizuno, Masahiko Morinaga, Yasuyuki Suzuki
  • Patent number: 5591083
    Abstract: To facilitate assembly of a shaft coupling, a sleeve is provided with a polygon configuration either on the hub or in the polygonal opening of the drive side flange and is axially slidable in the matching polygon. Where the sleeve surrounds the hub, it is braced inwardly by the elastically compressible bodies between the sleeve the outer polygon. Where the sleeve fits against the outer polygon, it forms a cage retaining the elastically compressible bodies against a hub on the shaft for insertion into the opening in the flange.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: January 7, 1997
    Assignee: Centa-Antriebe Kirschey GmbH
    Inventor: Gerhard Kirschey
  • Patent number: 5562360
    Abstract: A spindle connector including a holder base having two rectangular mounting holes arranged at two opposite ends at right angles, two annular grooves spaced around the periphery, and two radial pin holes respectively made through the annular grooves for mounting a respective pin to hold a respective transmission shaft to the holder base; a transmission shaft having two opposite flat coupling portions at two opposite ends for fitting into one rectangular mounting hole on the holder base and two pin holes respectively arranged at the coupling portions at right angles for connection to one pin hole on the molder base; two binding rings respectively mounted around the annular grooves to hold a respective pin in each pin hole on the holder base; and a socket sleeved onto one end of the holder base and covered over the linked coupling portion of the transmission shaft for protection.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: October 8, 1996
    Inventor: Hsi-Hung Huang
  • Patent number: 5511959
    Abstract: A scrool fluid machine including a fixed scroll an orbiting scroll an Oldham ring and bearing portions which are entirely or partly made of a reaction-bonded precise sintered ceramics which is superior in near-net-shape property, and particularly made of a reaction bonded precise sintered ceramics which is produced by reaction-bonding inorganic compound particles such as A1.sub.2 O.sub.3, SiC, TiN, ZrN etc. with Si.sub.3 N.sub.4 which is a nitride of Si.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: April 30, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Tojo, Masahisa Sofue
  • Patent number: 5485905
    Abstract: An overrunning clutch assembly comprises a housing and a tubular shaft rotatably coupled together with a roller or sprag clutch positioned therebetween to permit the housing to freely rotate about the shaft in one direction, or to establish torque communication between the shaft and the housing when rotated in the opposite direction. To minimize the weight of the assembly while also containing the radial forces and stresses generated by the roller clutch when transmitting torque, the housing and the shaft are reinforced with high-strength, high-modulus materials having high strength-to-weight ratios.
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: January 23, 1996
    Inventor: H. John Rader, III
  • Patent number: 5474630
    Abstract: The invention proposes a process for manufacturing a transmission shaft made of a composite material comprising at least one step for producing an external layer comprising reinforcing fibers impregnated with a heat-curable resin, characterized in that a peripheral sheath made of a knitted article is installed over the external layer prior to the curing of the resin during the polymerization cycle.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: December 12, 1995
    Assignee: GKN Glaenzer Spicer
    Inventor: Michel Rouillot
  • Patent number: 5468188
    Abstract: A joint for connecting a first drive shaft to a second drive shaft includes a ball and socket arrangement connecting the two shafts and a spring attached at one end to one shaft and at the other end to the other shaft. The spring is made of a polymer matrix containing fibers made from poly(p-phenylene terephthalamide) resin. The fibers extend through the polymer matrix along the helical axis of the spring. The spring is disposed about the ball and socket arrangement so that shock loads are absorbed by the spring.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: November 21, 1995
    Inventor: Stanley J. Day
  • Patent number: 5429220
    Abstract: A torque transfer system is provided for transferring torque from an input element such as a flywheel of an internal combustion engine to an output element such as a PTO shaft. The torque transfer system includes the input and output elements and a drive system comprising a drive ring attached to the input element and a drive plate positively or non-positively coupled to the output element. The drive ring transfers torque to the drive plate so as to absorb torsional vibrations which occur during operation of the system, so as to resist abrasion of the drive ring from the drive plate, and so as to resist failure from rotational shock loads imposed on the drive ring by the drive plate.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: July 4, 1995
    Assignee: Twin Disc Incorporated
    Inventors: Janet M. Sabee, Arthur A. Lines
  • Patent number: 5421781
    Abstract: A method of forming a coupling or connecting a composite drive shaft to an annular member comprising the steps of locating the shaft over the member and injecting adhesive through holes in the shaft to bond the shaft to the member.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: June 6, 1995
    Assignee: Turboflex Limited
    Inventor: Lawson Mackellar
  • Patent number: 5279522
    Abstract: A transmission joint body has an envelope inside which are provided bearing paths for articulation elements of a transmission joint (10). A connection system for the joint body includes a radial flange connected to the envelope. The flange is made at least partially from a material comprising a thermosetting or thermoplastic matrix reinforced with short fibers or with particles. According to a preferred embodiment, the inner space defined radially by the inner peripheral surface of the envelope of the joint body is partially filled with a material comprising a thermosetting or thermoplastic matrix reinforced with short fibers or with particles, and which is extended outside the envelope through one axial end of the latter in order to form the flange.
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: January 18, 1994
    Assignee: Glaenzer Spicer
    Inventors: Michel Rouillot, Bernard Poulin, Michel Margerie
  • Patent number: 5261991
    Abstract: The present invention relates to a unique fiber-reinforced metallic tubular element, along with a unique method for producing such tubular elements on a production basis. The tubular element includes a cylindrical aluminum tube surrounded by a fiber composite sleeve which includes a plurality of individual reinforcing graphite fibers oriented parallel to the longitudinal axis of the tube and uniformly positioned about the circumference of the tube. In the preferred embodiment of the invention, an isolation layer is positioned between the graphite reinforcing layer and the outer surface of the aluminum tube, and a protective covering layer of fiber material surrounds the tube and is adhered to the outer surface of the graphite reinforcing layer. In the preferred method of the present invention, a plurality of cylindrical metal tubes are coupled to one another in an end-to-end relationship by a plurality of joining plug members to form a longitudinally extending series of metal tubes.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: November 16, 1993
    Assignee: Dana Corporation
    Inventors: Barry L. Zackrisson, John A. Beckman
  • Patent number: 5234377
    Abstract: A torsional vibration damping mechanism (30) in a free standing clutch plate (26) for a vehicle driveline. The mechanism (30) includes composite C-shaped springs (41,42) for attenuating driveline torsionals and transmitting driveline torque, and a viscous damper (48) for controlling the rate of flexing of the springs. The mechanism also includes input and output drives (46,44) for flexing the springs only radially inward. The C-shaped composite springs are formed by removing a center portion of a minor arc of a closed ring comprising a plurality of layers of reinforcing filaments, or by cutting a composite cylinder into closed rings and removing the center portion. The composite springs include expanded end portions (41a,41b,42a,42b or 106b) to facilitate attachment of end brackets (72) to the springs without need of fasteners penetrating the composite.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: August 10, 1993
    Assignee: Eaton Corporation
    Inventors: Dale A. Stretch, Edward J. Hummelt
  • Patent number: RE38018
    Abstract: The present invention is generally characterized in an angled rotary tissue cutting instrument including an outer blade assembly, having a rigid tubular member with proximal and distal portions connected by a bead, and an inner blade assembly rotatably disposed within the outer blade assembly and including a tubular drive shaft at a proximal end, a cutting tip at a distal end, and a flexible coupling disposed between the drive shaft and the cutting tip. The drive shaft and cutting tip include neck portions which are disposed telescopically within proximal and distal ends of the coupling.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: March 4, 2003
    Assignee: Medtronic Xomed, Inc.
    Inventors: Stephanie B. Anctil, Gary Peters