Patents Examined by Howard N. Goldberg
  • Patent number: 4930205
    Abstract: A method of making hard rollers for commercial printing presses comprising the sequential steps of heating a cylindrical sleeve of plastic material until it reaches an elastic state, fitting the sleeve into position over a cylindrical metal core having an outer diameter slightly greater than the inner diameter of the cylindrical sleeve, and cooling the cylindrical sleeve. The method may be used to rebuild worn rollers and is simpler and more versatile than conventional methods of making hard rollers including electrostatic spraying of metal cores or securing plastic sleeves by means of adhesive or heating heat shrinkable polymer sleeves.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: June 5, 1990
    Inventor: Yvon Tasse
  • Patent number: 4929414
    Abstract: A new method for making a heat pipe wick and arteries includes drilling. Radial holes around the circumference of the heat pipe container at its ends and stringing monofilament polymer lines inside the container between corresponding holes. The container is rotated at a slow rate while a slurry of nickel powder mixed into a viscous binder of water, Polyox and Methocel is injected inside the container to cover the inside surface of the container and the lines. The rotational rate of the container is then increased to force the slurry to level out to an uniform depth set by the thickness of sleeves attached at each end of the container. Forced air is blown through the inside of the rotating pipe to dry the slurry and form a green wick. After stopping rotation of the pipe, it is then heated inside a sintering oven in a reducing atmosphere to disintegrate the binder and polymer lines and to leave a sintered metal wick having hollow longitudinal arteries.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: May 29, 1990
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: John F. Leonard, Jerry E. Beam
  • Patent number: 4922605
    Abstract: A liner (12) substantially smaller than the thickness of the tube plate (2) is inserted into the tube (8) so that, while one of its ends is in a region of the tube (8) inside the tube plate (2) and away from the entry face (2a), the other end of the liner (12) is beyond the exit face (2b) of the tube plate. Diametral expansion and roller expanding of the liner (12) are performed in the position which the latter occupies inside the tube (8).
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: May 8, 1990
    Assignee: Framatone
    Inventors: Jean P. Cartry, Bruno Fraissenet
  • Patent number: 4920623
    Abstract: A heatable glazing or calendering roll has a roll body, peripheral bores in the roll body for the passage of a fluid heat carrier, a flange journal for each end of the roll body, supply and discharge conduits for the fluid heat carrier in at least one flange journal and cutouts for the distribution of the fluid heat carrier from the supply conduits to the peripheral bores and from the peripheral bores to the discharge conduits; the cutouts are disposed in the end faces of the or each flange journal and are bordered on the opposite side by the planar end face of the roll body.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: May 1, 1990
    Assignee: Schwabische Huttenwerke GmbH
    Inventors: Hans-Friedrich Neuhoffer, Erich Vomhoff
  • Patent number: 4918814
    Abstract: Provided herein are novel layered elastomeric connectors, housings therefor and methods of manufacture for the connectors which includes alternating fused layers of a dielectric elastomer and electrically conductive fibrous mats coextensive with a cross section of the conductor to provide a multiplicity of conductive pathways between two electrically conductive surfaces. In order to promote a more mechanically stable connector, the fibrous mats can be exposed to a coupling agent for enhanced bonding. To enhance the electrical characteristics, the fibrous mats can be electroplated with an electrically conductive metal.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: April 24, 1990
    Inventors: John P. Redmond, Ray N. Shaak, Albert Shirk
  • Patent number: 4918805
    Abstract: A method for weld repair and rebuilding of worn and cracked diesel engine cylinder heads of the pot-type is used in railway locomotive diesel engines and the like. The method involves carefully controlled preheating, welding and cooling steps.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: April 24, 1990
    Assignee: General Motors Corporation
    Inventors: Kenneth J. Liszka, Daniel J. Dobruse, Steve E. Potopa, Charles E. Gammill, Jerry D. Gammill
  • Patent number: 4918806
    Abstract: In a method for manufacturing a piston a metal piston is prepared which has a skirt tapered towards the bottom end to such an extent that a diameter of the metal piston becomes uniform after a heat treating step. The metal piston is heat treated in a gas containing nitrogen and carbon to form a nitride film layer on the outer surface of the piston and to transform the skirt.
    Type: Grant
    Filed: February 14, 1989
    Date of Patent: April 24, 1990
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryuji Watanabe, Motohiko Kosano, Hirokazu Kawakami
  • Patent number: 4914795
    Abstract: A mill roll with a deformable casing comprises a tubular casing (1), a fixed support (2) and a set of elements (3) for holding the casing in the radial directions. At least one chamber (9) fed with high-pressure fluid is formed between the fixed support (2) and each of the holding elements (3). The end of the holding elements (3) is separated from the inner surface of the casing (1) by means of a fluid film occupying a zone (12) in the form of a sector of a ring. The zone (12) is in communication, at one of its ends, with a low-pressure fluid feed duct (14) and, at its other end, with a fluid recovery duct (15). This results in the formation of a hydrodynamic bearing during the rotation of the casing (1), which is fed completely independently of the high-pressure supply to the chamber (9).
    Type: Grant
    Filed: December 28, 1987
    Date of Patent: April 10, 1990
    Assignee: Clecim
    Inventors: Michel Morel, Marc Valence
  • Patent number: 4914810
    Abstract: An apparatus for measuring the surface pore size in an externally enhanced evaporator tube. Basically, the apparatus includes a pressure housing and gage that are sealingly engagable around a portion of the surface of the enhanced tube, so that fluid pressure flows into the housing and then through the pores and subsurface channels on the tube and then to the outside of the housing. The pressure drop across the pores and subsurface channels of the tube relates to the size of the pores.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: April 10, 1990
    Assignee: Carrier Corporation
    Inventor: Steven R. Zohler
  • Patent number: 4914811
    Abstract: A machine for inserting electrically conducting miniature spring sockets into holes of a printed circuit board without any damage to the circuit board, yet providing sufficient lateral movement to accommodate slight misalignments during the insertion process.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: April 10, 1990
    Assignee: AMP Incorporated
    Inventor: Edward F. Nolte, Jr.
  • Patent number: 4910847
    Abstract: A cage and roller assembly in a hardened thrust bearing race is restrained within the race by heating a plurality of circumferentially widely separated parts of the race lip to soften the lip parts and bending the softened parts over the cage of the cage and roller assembly. An apparatus for assembling the thrust bearing includes a pair of electrodes located to apply a current through the lip to soften the lip and a form punch which is constructed to bend the softened part of the lip over a cage and roller assembly to an acute angle with respect to the rest of the lip.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: March 27, 1990
    Assignee: The Torrington Company
    Inventors: Carl R. Christenson, Richard L. Alling
  • Patent number: 4908923
    Abstract: Method of dimensionally stabilizing the interface between metal parts of differing thermal expansion characteristics (TEC), regardless of temperature variations under normal designed use of such parts, comprising: (a) hot extruding a mixture of ceramic fibers (i.e., Si.sub.3 N.sub.4, SiC, Al.sub.2 O.sub.3) and a powder of the metal having the higher TEC (i.e., Al, Ti, Mg) while aligning the fibers generally along the direction of extrusion, to form an insert; (b) shaping the insert to align its fibers generally in at least one direction of anticipated thermal growth that may interfere with the interface; (c) casting the insert in place within a first part compound of the higher TEC metal and with the insert's fibers (i) oriented as above, and (ii) preheated to a temperature no greater than 35-45% of the temperature of the molten light metal; and (d) bringing together the first metal part with a second part of lower TEC metal (i.e., Fe or steel) to form the interface.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: March 20, 1990
    Assignee: Ford Motor Company
    Inventors: Anthony T. Anderson, David A. Donovan
  • Patent number: 4907323
    Abstract: A method and apparatus is provided for producing a woven biased fabric in which the structural fibers are skewed from the fabric centerline. The method and apparatus are particularly designed for producing a woven biased structural fabric in which the structural fibers are oriented about 45.degree. to the fabric centerline, where the flimsy, open-knit nature of the fabric makes handling extremely difficult. Broadly speaking, the apparatus includes a fabric feeding station, slitting station, and winding station. The feeding station holds a roll of conventional structural fabric (parallel and perpendicular structural fibers) woven in a tube configuration and flattened into the roll form. The feeding station rotates the roll in a vertical plane as the fabric unwinds in a horizontal direction. The slitting station includes a cutter and a pair of slatter rolls, the rolls moving the tube of fabric in the horizontal direction while rotating the tube of fabric.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: March 13, 1990
    Assignee: Hexcel Corporation
    Inventors: Donald L. Smith, Curtis L. McDonald, Jim R. Hicks
  • Patent number: 4907329
    Abstract: An axial support device for a cylinder with rotating sleeve comprising a fixed shaft (2) carried at each end (20) by a support member (3) in a fixed frame (1), a tubular cylindrical sleeve (4) and a series of aligned holding shoes (22), for adjustment of the profile of the sleeve (4), which is equipped at each end with a centering bearing (6) comprising an outer ring (62) and an inner ring (61). Each centering bearing (6) forms an axial stop resting on the support member (3) by means of a floating support device exerting axial pressure uniformly distributed on the inner ring by following angular offsets of the bearing axis (60) relative to the axis (25) of the corresponding end (20) of the shaft (2) which result from the respective deformations of the sleeve and of the shaft due to stresses applied during operation. The invention is especially applicable to a support cylinder in a rolling mill.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: March 13, 1990
    Assignee: Clecim
    Inventor: Dominique Boulot
  • Patent number: 4905364
    Abstract: A method for producing the latch bearing in a latch needle for textile machines of the type in which a latch is pivotably mounted in a longitudinal slot between two cheeks of a needle shank by a hinge pin passing through mutually aligned transversely extending bores in at least one of the cheeks and a bearing portion of the latch between the cheeks. In accordance with the method a cylindrical wire is provided with transversely extending notches at intervals corresponding to the length of a hinge pin. The notched wire is converted by hot or cold treatment into a bittle, hard state. Individual hinge pins are broken off from the wire at the notches, and are subsequently inserted into the bores in the cheeks and the bearing portion of the latch to be securely fixed there.
    Type: Grant
    Filed: January 12, 1989
    Date of Patent: March 6, 1990
    Assignee: Theodor Groz & Sohne & Ernst Beckert Nadelfabrik Commandit-Gesellschaft
    Inventor: Hardo Berentzen
  • Patent number: 4905363
    Abstract: A modular process is provided for dismantling light automobile vehicles with a view to recovering their detached parts and recycling in an organized network. In each module the sum of the times of testing, conveyance, dismantling, recovery, sorting, packing and storing of the parts, pressing and evacuation of the carcasses, with respect to the number of vehicles treated, whatever their original state, remains constant over a determined period. A line is provided for conveying the light automobile vehicles and in this line stations for dismantling by batch of parts and not by unitary parts follow one another. Further logistics are provided for ensuring supply of each station depending on the demand of the operator independently of the operator of the preceding station.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: March 6, 1990
    Inventor: Hugues Boyenval
  • Patent number: 4903403
    Abstract: Method for the simultaneous manufacturing and testing of a cable harness assembly having one, or a plurality of spaced apart connectors, of the insulation displacement type, terminated to a planar multi-conductor cable. The system can be programmed to cut or shear the cable immediately after a test thereof fails to verify an appropriately terminated connector or continuity in the cable, or after the cable harness assembly length is reached. By such a system, a minimum of cable is lost to scrap due to the failed electrical testing thereof.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: February 27, 1990
    Assignee: AMP Incorporated
    Inventors: Christopher K. Brown, Carl L. Moyer, Joanne E. Shipe, Herman D. Walter
  • Patent number: 4901422
    Abstract: The invention is concerned with a method of manufacturing badges and insignia, for example of the type worn by policemen and army personnel. The method comprises extruding metal, preferably aluminum, to form a channel-shaped section. The section has a flat planar surface portion and a pair of spaced parallel flanges projecting rearwardly from the rear face of the surface portion and at right angles to the face. The extruded section is passed through a punching machining machine, and side-acting punches remove portions of the metal forming the flanges to form lugs. A badge is formed in the planar surface portion of the section, and the completed badge is severed from the remainder of the extrusion. The invention also includes a badge made by the method which includes fastening lugs projecting from the reverse of the badge and formed integrally with the badge by extrusion.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: February 20, 1990
    Inventor: William J. Woods
  • Patent number: 4901416
    Abstract: A method and control system for manufacturing externally enhanced evaporator tubes. A pressure signal indicative of the pore size on the external surface of the enhanced evaporator tube is provided to a microcomputer system which processes the signal indicative of the pore size and compares the signal to a predetermined pore size signal to determine when the pore size is within a selected tolerance. The microcomputer generates a control signal to adjust the enhancing process if the microcomputer system determines that the pore size of the manufactured tube is different than the selected pore size.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: February 20, 1990
    Assignee: Carrier Corporation
    Inventor: Craig J. McKinney
  • Patent number: 4901429
    Abstract: A method of forming a superconductive joint between superconductors made of filaments of superconducting material embedded in a matrix material utilizes two baths of molten metals. One of the baths of molten metal is used for etching the matrix material away from the superconducting filaments and is vibrated at an ultrasonic frequency. The other bath is also vibrated at an ultrasonic frequency and is used to mold the etched superconductors into a superconducting joint. Superconducting joints may thereby be made under ordinary atmospheric conditions between superconducting wires having similar and/or different matrix materials.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: February 20, 1990
    Assignee: General Electric Company
    Inventor: Vishnu C. Srivastava