Patents Examined by Marc W. Butler
  • Patent number: 6435047
    Abstract: A method of manufacturing a shoe including cutting a columnar raw material to a given length to provide a disc-shaped raw material, forming on one end face of the disc-shaped raw material a spherical sliding surface which is to be disposed in sliding contact with a spherical surface on a piston, and forming a thermal sprayed layer on the other end face of the disc-shaped raw material. The thermal sprayed layer serves as a flat plate-shaped sliding surface which is to be disposed in sliding contact with a swash plate. A shoe which is provided with the thermal sprayed layer exhibits an increased seizure resistance in comparison to a conventional shoe which is formed with a sintered layer, and can be manufactured inexpensively.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: August 20, 2002
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Yoshiaki Kitagawa, Shogo Muramatsu, Masanori Akizuki, Hiroyuki Asano
  • Patent number: 6371900
    Abstract: A cooling drum for a twin-drum continuous casting machine is capable of ensuring an excellent drum body interior cooling effect and advantageously overcoming both the problem of wear of the cooling drum end portions that are pressure-contacted with, and slide on, the side dams and the problem of their local deformation, and that, as a result, can ensure long-term maintenance of a suitable pressure-contact sliding state between the side dams and the cooling drum so as to enable stable continuous casting over a prolonged period. The cooling drum comprises a drum body portion of a material having a thermal conductivity of 100-400 W/mK and drum end portions part or all of whose portions in pressure-contact with the side dams and/or part or all of whose inner regions are formed of a reinforcing material that is a high-hardness material having a Vickers hardness HV (250 g) of 300-600.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: April 16, 2002
    Assignee: Nippon Steel Corporation
    Inventors: Yasushi Kurisu, Kazuto Yamamura, Katsumi Ando, Keiji Tsunenari, Chihiro Yamaji
  • Patent number: 6363613
    Abstract: The method for manufacturing a torsion bar shoulder bearing has four method steps: (1) the manufacture of a elastomeric spring as a not fully vulcanized molding for receiving a sleeve-shaped or bolt-shaped inner connecting part in a central bore and an outer sleeve-shaped connecting element; (2) the pretreatment of the surface regions, to be connected to the molding, of the connecting parts by means of an adhesive system; (3) the pushing of the molding onto the inner connecting part and the insertion of the molding thus reinforced into the outer connecting part (or in the opposite sequence), as a result of which the elastomeric molding is clamped under moderate prestress between the two connecting parts, and (4) the concluding full vulcanization of the elastomeric molding in the assembled bearing, using a tempering furnace, at temperatures of below 140 to 150° C.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: April 2, 2002
    Assignee: WOCO Franz-Josef Wolf & Co.
    Inventors: Franz Josef Wolf, Uwe Schleinitz, Peter Koczar
  • Patent number: 6361484
    Abstract: A roller includes a metal core, a cylinder including polyurethane, and a conductive adhesive between the metal core and the cylinder. The polyurethane includes a solid solution of a transition metal halide salt and includes less than 5% of salt by weight. The transition metal halide salt provides the polyurethane with a uniform conductivity and a uniform resistivity of between 1012 ohm-cm and 105 ohms-cms.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: March 26, 2002
    Assignee: Mearthane Products Corporation
    Inventors: Wen-Pin Chen, Albert C. Chiang, John A. Roderick, Marcelino A. Martins, George B. Martins
  • Patent number: 6349469
    Abstract: The invention is directed to a method of aligning a bearing assembly relative to a roll in a fiber-making machine. The method of the present invention is particularly adapted for dryer cylinders in a paper-making machine, the dryer cylinders having an end rotatably mounted in a preferably freely carrying bearing assembly such as a continuous aligning roller bearing (CARB) that allows for axial (z direction) movement of the cylinder particularly axial movement due to thermal expansion. The bearing assembly includes inner and outer races of which the outer race is stationary with the inner race is affixed to the journal and moves therewith. For axially aligning or providing an initial offset of the outer race to the inner race, an alignment plate is mounted to the end of the cylinder journal during bearing housing installation that allows various measurements to be taken.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: February 26, 2002
    Assignee: Voith Sulzer Paper Technology North America, Inc.
    Inventor: Kenneth H. Larson
  • Patent number: 6349470
    Abstract: On the periphery surface of the outer race, the stepped portion is formed, and on one side of the race retention hole formed on the housing, a screw portion is provided coaxially with the race retention hole, in which the setscrew is screwed and tightened. Retention of the front surface of the setscrew makes the end face of the stepped portion, pressed against the snap ring retained with the annular groove, formed on the race retention hole. Since the outer race is clamped by the setscrew and the snap ring and the gap between the end face of the outer race and the setscrew, and the snap ring becomes null, the outer race is securely retained in the axial direction.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: February 26, 2002
    Assignee: Minebea Co., Ltd.
    Inventors: Gen Sasaki, Shinichi Akao, Kennosuke Kariya
  • Patent number: 6347451
    Abstract: A process for manufacturing a built-up camshaft by which the operational safety of the camshaft is ensured in a simple manner in any engine operation and the camshaft can arbitrarily be adapted to abutments which have different positions because of the individual engine construction. At least one cam is pushed onto a hollow shaft, after which the hollow shaft is expanded between the two faces of the cam which extend transversely with respect to the longitudinal course of the hollow shaft and at the respective bearing point by means of a highly pressurized pressure fluid. This fluid is delivered by a lance-shaped probe introduced into the hollow space of the shaft. On the one hand, a press fit occurs between the cam and the hollow shaft and, on the other hand, a bulging of the bearing point of the hollow shaft occurs which bridges the distance between the hollow shaft and the abutment.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: February 19, 2002
    Assignee: DaimlerChrysler AG
    Inventors: Henning Bloecker, Klaus Brandes, Martin Kruessmann
  • Patent number: 6346066
    Abstract: A tubular roll with glide bearings and a method for providing a tubular roll mantle with glide bearings. The roll mantle is supported on a roll axle by hydraulic glide bearing elements which are loaded hydraulically by a pressure medium. The roll is loaded from outside radially in a principal loading direction and the roll mantle is supported on the roll axle by glide bearing elements in the principal loading direction. The loading pressure and lubricant are fed to the glide bearing elements as separated from one another so that the movement of the roll mantle, the speed of movement and the change in speed are regulated by opening, closing and/or throttling the flow in the pressure duct of the loading pressure. The lubricant may be fed to the glide bearing elements irrespective of the loading pressure.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: February 12, 2002
    Assignee: Valmet Corporation
    Inventor: Pekka Kivioja
  • Patent number: 6343420
    Abstract: The method includes sliding a first shim onto the support shaft until it abuts a shoulder. The first shim has a predetermined thickness. A bearing is then slid onto the tapered surface and a lock nut is tightened onto the threaded portion of the shaft. As the lock nut contacts the inner race of the bearing it causes the inner race to contact the first shim and also to radially expand outwardly, thereby preloading the bearing. The outer race of the bearing is then connected to a motor and the motor is operated at a predetermined, constant speed. The torque required to rotate the outer race of the bearing is measured and compared to a predetermine torque range to determine if the bearing is precisely preloaded.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: February 5, 2002
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Mark William Beduhn, Jimmy Harrell Howard, Jr.
  • Patent number: 6344019
    Abstract: A cylinder device includes a deflection-controllable cylinder having a rotating hollow cylinder which is longitudinally traversed by a crosshead. Crosshead sags when subjected to a load. The ends of the crosshead, which protrude from the hollow cylinder, are supported by bearings in the cylinder housing that include flat slide surfaces which interact, are hydraulically relieved of load, and absorb the elongation of the crosshead. Also, where applicable, spherical surfaces which interact, are hydraulically relieved of load, and absorb the deflection of the crosshead.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: February 5, 2002
    Assignee: Eduard Ku
    Inventor: Karl-Heinz Kusters
  • Patent number: 6332265
    Abstract: A rolling bearing manufacturing apparatus is used to work the two races of a rolling bearing and then assemble the thus worked outer and inner races together with a plurality of rolling elements into the rolling bearing. The present apparatus comprises an outer race groove working machine 11 for working the outer race of the rolling bearing to thereby form a raceway groove therein, a gauge part 23 for measuring the raceway diameter of the raceway groove of the outer race after the present raceway groove is worked by the outer race groove working machine 11, and an inner race grinding machine 12 which, in accordance with the thus measured raceway diameter, works the raceway groove of the inner race in such a manner that an internal clearance can provide a predetermined constant amount.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: December 25, 2001
    Assignee: NSK Ltd.
    Inventor: Katsuhisa Tonooka
  • Patent number: 6327773
    Abstract: One or more force application members (e.g., a force transmission member and/or a hydraulic force application member) may be employed to provide a desired adjustment (e.g., a preload and/or a compression) to an adjustable spacer of a bearing assembly. The hydraulic force application member may provide a first stage of the adjustment to the spacer, and the force transmission member may be threadingly rotated to apply a second stage of the adjustment to the spacer. An additional force application member may (e.g., contemporaneously) oppose at least one of the force application members in the providing of the adjustment to the spacer. This opposing force may cause a gap between certain surfaces (e.g., in a press) until the adjustment to the spacer is completed. The closure of the gap may serve to indicate the completion of the desired adjustment to the spacer. A housing rotatable on a portion of the bearing assembly may be prevented from rotating at the closure of the gap.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: December 11, 2001
    Inventor: John E. Rode
  • Patent number: 6327778
    Abstract: To provide a method for mounting an outer sleeve onto a housing at low cost and with high precision in a linear sliding apparatus. The linear sliding apparatus has a shaft, and the outer sleeve is fitted around the shaft and slidable in a linear manner relative to the shaft. The method includes the steps of: engaging an outer circumference of the outer sleeve with a stationary member; and fixing the stationary member to the housing by a fastening member, thereby mounting the outer sleeve on the housing.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: December 11, 2001
    Assignee: Nippon Bearing Co., Ltd.
    Inventors: Mitsuru Yamazaki, Toyoshi Kazama
  • Patent number: 6317976
    Abstract: The invention is directed at a method of manufacturing these catalytic converters having non-round honeycomb substrates and comprises the following steps: (1) wrapping a non-round monolithic ceramic substrate, having a major and minor orthogonal axis, in a sufficient amount of the supporting mat material whereby the substrate's peripheral surface is substantially covered; (2) inserting the wrapped substrate into a metal shell, having a plurality of nodal points, which substantially surrounds the wrapped substrate; (3) placing the metal shell in a resizing die having a plurality of fingers, and associated gaps therebetween, extending axially along substantially the entire surface of the metal shell whereby the nodal points of the metal shell are positioned along a portion of a die finger and the placement of the metal shell and wrapped substrate, within the resizing die is such that the axes of the resizing die are angularly offset from the major and minor axes of the substrate; (4) compressively closing
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: November 20, 2001
    Assignee: Corning Incorporated
    Inventors: Douglas A. Aranda, Paul S. Schmitt
  • Patent number: 6306069
    Abstract: The present invention relates to a spreader roll. The roll includes a curved central shaft and roll segments arranged in a rotary fashion to this and including a cylindrical shell and at least one radial supporting device oriented against the curved shaft. The roll segments are so arranged that water leaking into the spreader roll will not affect the roll function negatively. The radial supporting device and the curved shaft are hereby assembled together to rotate with one another with the aid of a slide bearing.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: October 23, 2001
    Assignee: Suomen Intech Oy
    Inventor: Ingmar Vesterlund
  • Patent number: 6301783
    Abstract: A shaft manipulating centering and assembly tool for use in a housing bore has four basic members, a manipulating member, a pressing member, a locking member and a power drive member. The manipulating member has an outer surface the radius of the bore and an inner surface that includes one section the radius of the shaft and a flat section. The pressing member has limited rotation within one end of the manipulating member and can push against the bore wall or shaft and can turn the manipulating member. The locking bar member anchors the tool on a housing stud. The drive member turns the pressing member and manipulating member and holds the locking bar in place. By placing the tool beside the shaft within the bore and turning it in a first direction, the shaft is lifted onto the manipulating member and the locking bar moves beside the housing stud.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: October 16, 2001
    Inventor: Andrew Jason Deavers
  • Patent number: 6301781
    Abstract: A method of making Circular and Oval Flanged Rings, for the connection of thin walled circular and oval ducting, including Circular and Oval Flanged Rings having a Sheet Metal and Air Conditioning Contractors National Association (SMACNA) standard T24 Profile. Thin gauge Lock Form Quality steel, from 10 to 20 gauge, is cut into strips with the strip ends butt welded forming Flanged Ring Band Stock which is inserted and clamped into a Spinning Die. The Spinning Die is rotated by a horizontally configured lathe output shaft presenting the extended portion of the Flanged Ring Band Stock for machine tool forming. Standard machine tools are used to form the Flanged Ring Band Stock into a Circular Flanged Ring including the SMACNA T24 Flanged Ring Profile. A Circular Flanged Ring is cut along a diameter into Semi-circular Flanged Ring Portions; straight segments including segments with SMACNA T24 Linear Segments are roll formed, assembled into a oval shape within a fixture and welded forming the Oval Flanged Ring.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: October 16, 2001
    Inventor: Jeffrey A. Hermanson
  • Patent number: 6299382
    Abstract: A method is provided for removing an expander from a ground piercing tool of the type having an elongated tubular tool body with a front nose and a striker disposed for reciprocation within an internal chamber of the body to impart impacts to an impact surface for driving the tool forwardly through the ground. The expander is tightly fitted onto the nose of the tool body. The method of the invention uses a pulling device comprising a pair of arms ending in hooks and mounted at ends opposite the hooks to a yoke having a threaded hole therethrough, and a screw including a threaded stem inserted through and threadedly coupled with the hole. Suitable means are provided for engagement with a device for turning the screw.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: October 9, 2001
    Assignee: Earth Tool Company, L.L.C.
    Inventor: Steven W. Wentworth
  • Patent number: 6295719
    Abstract: A method of controlling curvature of hydrodynamic bearing slider. The method includes adding a preselected amount of compressive surface stress to the slider to change curvature of the slider and then removing a portion of the added compressive stress to adjust the curvature.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: October 2, 2001
    Assignee: Seagate Technology LLC
    Inventor: Richard A. Strom
  • Patent number: 6293894
    Abstract: A roll for use in defining a baling chamber of a large round baler includes a tubular central body having stub shafts projecting from opposite ends thereof and secured thereto at locations within opposite ends of the tubular body. In one embodiment, a flange is formed integrally with each stub shaft and is welded to a tubular cylindrical extension inserted into a respective end of the tubular central body and secured there either by a press fit and/or welding. In a second embodiment, a flange is integral with each tubular extension as well as with each stub shaft with the flanges of the stub shafts being respectively bolted to the flanges of the extensions.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: September 25, 2001
    Assignee: Deere & Company
    Inventors: Jean Viaud, David C. Preece