Patents Examined by C. W. Lanham
  • Patent number: 4194673
    Abstract: Metal/ceramic abradable seals of the type used in jet aircraft are improved by maintaining a temperature differential between the metal/ceramic composite and the cooler substrate during cooling from the brazing temperature.
    Type: Grant
    Filed: November 9, 1977
    Date of Patent: March 25, 1980
    Assignee: Union Carbide Corporation
    Inventors: Raymond J. Elbert, Raymond V. Sara
  • Patent number: 4192053
    Abstract: A system and method for retubing a steam generator for a pressurized water reactor while the steam generator is in place in a containment vessel.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: March 11, 1980
    Assignee: Westinghouse Electric Corp.
    Inventors: Rodney A. Blanco, Anthony A. Massaro, Jr.
  • Patent number: 4186475
    Abstract: Method and means of rapidly repairing damaged portions of conduits and pipes which are difficult or impossible to weld, whereby in the vicinity of the pipes to be maintained prepared replacement pipe sections are stored each together with two associated quick-action unions which comprise an annular coupling body bridging the pipe ends to be joined and having at least one threaded portion and a sealing insert which may be compressed by means of plugs adapted to be screwed into the threaded portion, and after cutting out a portion of the pipe which includes the damaged area and the length of which corresponds substantially to the length of the prepared replacement pipe section the latter is inserted into the pipe line and sealed by tightening and quick-action unions.
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: February 5, 1980
    Assignee: NYBY Bruk AB
    Inventor: Arne Jonsson
  • Patent number: 4184238
    Abstract: A skirt-like device attached to the exit end of a rocket engine nozzle is fabricated of thin sheet heat resistant metal; which when extended in operative condition is in frustoconical form, but which prior to engine firing is pleat-folded inwardly into a stowed position relative to the exit end of the rocket engine nozzle. Thus, prior to engine firing the device adds little or nothing to the engine/nozzle occupancy space; but incident to engine firing the device deploys to provide an effective engine nozzle/skirt combination of increased length and exit diameter/area; said combination having an inner surface of constant slope.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: January 22, 1980
    Assignee: Textron Inc.
    Inventor: Lee F. Carey
  • Patent number: 4182028
    Abstract: An ultra-thin hermetically sealed button-type electrochemical cell is disclosed comprising a pair of mating metallic housing members, at least one of which is generally dish shaped to define an enclosed space therebetween. A peripheral opening defining a fill port is formed in one of the housing members, preferably at the junction formed by the mating surfaces. The interfacing surfaces of the cell housing members are welded together subsequent to the insertion of the internal cell components and prior to the addition of the electrolyte to form a hermetic seal. The electrolyte may then be added and the fill port hermetically sealed by welding. Owing to its relatively small size, the fill port may be quickly sealed so that the heat generated during the weld process is insufficient to volatilize the electrolyte.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: January 8, 1980
    Assignee: GTE Laboratories Inc.
    Inventors: James Epstein, Nikola Marincic
  • Patent number: 4181002
    Abstract: A sheet metal bending tool with first and second former members, one rotatable on a first axis, the former members being movable toward and away from each other on another axis normal to the first axis, the formers having opposed clamping faces, the rotatable former member having two clamping faces angularly related to each other by an angle equal to the angle of rotation during bending, the clamping face of the second former being toothed.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: January 1, 1980
    Assignee: Walter Eckold Vorrichtungs u. Geratebau Sperrluttertal
    Inventors: Gerd-Jurgen Eckold, Hans Maass
  • Patent number: 4178022
    Abstract: Tapered stainless steel spool pieces are welded to the ends of stainless steel pipe lengths at the factory to provide subassemblies which are then annealed and thereafter in the field are positioned with the larger free ends of opposed spool pieces disposed to receive weld metal uniting the subassemblies while coolant liquid is maintained in contact with the inside surfaces of the spool pieces.
    Type: Grant
    Filed: July 12, 1977
    Date of Patent: December 11, 1979
    Assignee: General Electric Company
    Inventor: Rodney E. Hanneman
  • Patent number: 4173066
    Abstract: The method of making a laminar battery including the steps of contacting the cellophane side of a laminate of cellophane and zinc powder adhered to the cellophane with a polymeric binder with a cathode slurry of carbon and manganese dioxide in an aqueous solution of electrolytes, coating the zinc side of the laminate with a carbon slurry, and contacting the carbon slurry with a conductive plastic current collector, and cells and batteries made by this process.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: November 6, 1979
    Assignee: Polaroid Corporation
    Inventor: Gordon F. Kinsman
  • Patent number: 4173060
    Abstract: A system and method for retubing a steam generator for a pressurized water reactor while the steam generator is in place in a containment vessel.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: November 6, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Anthony A. Massaro, Jr., Harry N. Andrews
  • Patent number: 4173062
    Abstract: A quadriplanar capacitor and the method of forming it is disclosed. A capacitor element is disposed within an open ended enclosure and sealed therein, the enclosure forming one capacitor electrode. The open end of the enclosure forms a quadrilateral. A flat electrode member forming the second capacitor electrode is fixedly attached to a lead which itself is rigidly attached to the capacitor element. The flat member is disposed parallel to the enclosure opening and spaced from the enclosure by the lead. The flat member is substantially coextensive with the enclosure opening.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: November 6, 1979
    Assignee: Corning Glass Works
    Inventor: Gerald M. Locke
  • Patent number: 4170815
    Abstract: A method of operating a reheating furnace in a hot rolling line and a heating furnace therefor in which the reheating furnace is positioned between a continuous casting apparatus and a rolling apparatus rolling workpieces at a higher speed than they are cast by the casting process, the furnace serving as a heating and buffer zone. The heating furnace is longitudinally divided into two heating sections which are changed over so as to receive workpieces for heating and the workpieces are charged into one of the two sections after the other of the two sections has been filled up. The furnace is operated to collectively forward the workpieces heated up to predetermined rolling temperatures to the rolling apparatus for efficient rolling.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: October 16, 1979
    Assignee: Chugairo Kogyo Kaisha Ltd.
    Inventor: Tetsuya Tokitsu
  • Patent number: 4170056
    Abstract: A filter for blood and the like including a housing defining an inlet for fluids to be filtered, and an outlet for filtered fluid, plus a stack of filter pads of thermoplastic fibers positioned within the housing. According to one aspect of this invention, the stack of pads is joined together at their periphery by a heat seal to form an integral filter unit, while, typically, the stack is joined to the housing at such periphery by a second seal. In another aspect of this invention, the fluid inlet is positioned adjacent a first pad of the stack and the fluid outlet is adjacent a last pad of the stack, the diameter of the fibers of the last pad being smaller than the diameter of the fibers of the first pad, typically with the fiber diameter of intermediate pads generally decreasing from pad to pad in the direction of the last pad.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: October 9, 1979
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Richard P. Meyst, Ronald M. Porten
  • Patent number: 4169366
    Abstract: The invention concerns a device for the extrusion of hollow or semi-hollow sections which are made in particular of a light metal. The device has at least one mandrel head on a mandrel support projecting into a die opening, the mandrel head being a special insert-type mandrel which is held in place on the mandrel support by a connecting device.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: October 2, 1979
    Assignee: Swiss Aluminium Ltd.
    Inventor: Adolf Ames
  • Patent number: 4168027
    Abstract: There is described a method of soft soldering aluminium or alloys thereof using a fluxed solder composition. The fluxed solder composition comprises a soldering flux suitable for use in soft soldering aluminium and its alloys and a soft solder alloy of lead, tin and silver and, optionally, up to 3% copper. The composition of the soft solder alloy is such that it contains at least 35% lead and 10% tin, and x% silver wherein x=0.1+(5.times.10.sup.-4)(Sn).sup.2 +(1.times.10.sup.-5)(Sn).sup.3, (Sn) being the percentage by weight of tin in the alloy.
    Type: Grant
    Filed: November 3, 1977
    Date of Patent: September 18, 1979
    Assignee: Multicore Solders Limited
    Inventors: Gordon F. Arbib, Bernard M. Allen
  • Patent number: 4167866
    Abstract: A process and device for manufacturing, composite sections, by means of extrusion, are described. The composite sections comprise at least two components one of which is fed into the stream of metal being extruded and is securely joined to the face of the product without coming into contact with the face of the extrusion die.
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: September 18, 1979
    Assignee: Swiss Aluminium Ltd.
    Inventors: Adolf Ames, Jean-Jacques Theler
  • Patent number: 4166369
    Abstract: A safety device for press brakes comprises light projectors mounted on the side of a lower beam of the press brake so as to form a plurality of horizontal light beams extending between a punch and a workpiece, light receivers mounted on the side of the lower beam so as to receive said light beams, and detector means mounted between said light receivers and a safety circuit and adapted to be actuated immediately before the interruption of the light beams when the punch interrupts them with the downward movement of a slide, thereby preventing the stopping of the operation of the press brake.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: September 4, 1979
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventor: Masanobu Nakajima
  • Patent number: 4166562
    Abstract: An assembly system for assembling microcomponents of semi-conductor or other electronic devices includes on a unitary machine frame the tooling for precision excising tape mounted microcomponents, precision forming their electrical leads, placement of the components in correct registration with conductors on a pre-positioned substrate, and bonding the formed leads to the conductors.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: September 4, 1979
    Assignee: The Jade Corporation
    Inventors: Alan S. Keizer, Donald B. Brown
  • Patent number: 4166375
    Abstract: The invention relates to metal forming equipment and may be most advantageously used for the manufacture of single-tailed blades preferably for gas turbine engines. The hammer according to the invention has a stationary bed incorporating a load bearing frame carrying a lower die and a hammer cylinder. The hollow piston rod of the hammer cylinder accommodates a hammer body with an upper die, and its upper chamber is an explosion chamber. The invention resides in that the hammer body is mounted in the inner space of the hollow piston for an independent axial movement relative thereto under the action of a hammer piston arranged thereabove in the same inner space. The hammer piston is caused to move by pressure of gases released upon a blow-up in the explosion chamber. The chamber communicates with the inner space of the piston rod through a central opening of the piston. This construction considerably enlarges the manufacturing capabilities of the hammer according to the invention.
    Type: Grant
    Filed: March 28, 1978
    Date of Patent: September 4, 1979
    Inventors: Georgy K. Stepantsov, Valentin S. Abramov, Jury N. Bloschitsyn, Raif R. Zaripov, Alexandr A. Babko, Ferdinand K. Kutlin, Ivan V. Glazunov, Alexei A. Nilov, Gennady V. Kuznetsov, Petr A. Viter, Alexandr F. Pavlov, Valery M. Belonog, Vladimir A. Korneev, Emilia I. Zvereva
  • Patent number: 4165831
    Abstract: An improved back-up pad apparatus for use in externally welding abutting ends of pipe is formed of hard anodized aluminum material and comprises a plurality of arcuate back-up pads for interior positioning to face the weld. Each arcuate pad is mounted on a shoe for biased engagement with the interior cylindrical surfaces of the pipes. Intermediate shoes carrying cylindrically surfaced members are provided at the rounded ends of adjacent back-up pads.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: August 28, 1979
    Assignee: Crutcher Resources Corporation
    Inventor: Talbert D. Connell
  • Patent number: RE30206
    Abstract: A method of manufacture of an annular seal element comprises the steps of providing an apertured backing ring with closely packed bristles extending radially outwardly from the circumference thereof, clamping the free ends of the bristle between a pair of co-axial rings and welding the rings and the outermost tips of the bristles into a unitary structure and subsequently machining away the original backing ring to leave the rings with radially inwardly extending bristles.The invention also includes a sealing element made by the method.
    Type: Grant
    Filed: May 10, 1977
    Date of Patent: February 5, 1980
    Assignee: Rolls Royce (1971) Limited
    Inventors: John G. Ferguson, Geoffrey D. Waters