Patents Examined by Howard N. Goldberg
  • Patent number: 5001830
    Abstract: A method of assembling side entry control stage blades in a rotor of a steam turbine, each blade including a cover, an airfoil, a platform and a root. The cover and the platform of each blade include leading and trailing surfaces which abut mating surfaces of the cover and the platform of an adjacent blade. The blades are installed in the turbine rotor, each blade centerline aligned along a radial line of the rotor. To establish tight contact between adjacent covers and between adjacent platforms, a wedge is inserted between the top of a rotor steeple and a bottom of a blade platform along one side of each blade. A shroud is riveted onto the covers of adjacent control stage blades which maintains the tight contact established by the wedges. The wedges are removed afer shroud attachment. The leading and trailing surfaces in one form may have an arcuate shape to provide better shock transfer in more than one direction.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: March 26, 1991
    Assignee: Westinghouse Electric Corp.
    Inventors: Doretta H. Partington, Albert J. Partington
  • Patent number: 4999911
    Abstract: A method and apparatus for remanufacturing a valve seat includes providing a valve having an oversize valve head (52) and an oversize valve stem (80). The oversize valve head has a seating surface (60) which rides higher in the valve seat (34) after resurfacing thereof. The seating surface (60) on the valve head (58) therefore rides higher on the new seating surface (66) in the valve seat (34). The oversize valve stem (80) accommodates a bored out valve guide (78) to allow a single size valve stem to be utilized. A keeper grove (84) is disposed on the upper end of the oversize valve stem (80) and dimensioned such that it is disposed a predetermined distance below the original dimension of a standard valve. This allows a predetermined amount of compression to be placed onto the valve spring (28) to account for fatigue therein.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: March 19, 1991
    Assignee: Enginetech, Inc.
    Inventor: Douglas R. Anderson
  • Patent number: 4999912
    Abstract: A glueing process of cylinder liners to the cast iron or aluminium crankcase of an internal combustion engine, regarding either machined or rough cylinder liners, and requiring no tools or fixtures of special type.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: March 19, 1991
    Assignee: Fiat Auto S.p.A.
    Inventors: Ubaldo Cuccato, Salvatore Di Carlo
  • Patent number: 4998335
    Abstract: A ruined bolt in work is replaced on removing the same by destroying it on burn-out of its mounting shank from the usual tapped hole in work with ensuing mutilation of the tapped hole, and simply driving a replacement bolt with its self-tapping threaded mounting shank into the multilated hole much in the manner of a tap and thereby securely mounting the new bolt in the work.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: March 12, 1991
    Inventor: Gary S. Esposito
  • Patent number: 4996769
    Abstract: A method is provided for fitting a butterfly valve on the slotted shaft of a carburetor body. The slot is first of all oriented parallel to the axis of the duct. Then one edge of the butterfly valve is gripped by a gripping member and is inserted as far as its final position by moving the member along the axis of the duct. The unit formed by the butterfly valve and the shaft is rotated as far as the position in which the butterfly valve closes the duct by exerting a force with the gripping member and a retaining torque with a motor.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: March 5, 1991
    Assignee: Solex
    Inventor: Marcel Bongart
  • Patent number: 4993265
    Abstract: A solid state measurand sensor is described in which the pressure sensor element is protected from the measurand by a combination of a pressure transfer medium and a thin covering membrane. A method is described for forming the diaphragm in situ. The diaphragm material is selected from a group of materials which includes fluorosilicone, so as to substantially avoid entrapment of air or formation of voids in the pressure transfer medium such as would degrade the performance of the sensor. The pressure transfer medium is gel-like material such as dimethyl silicone and equivalents. Alternatively, the gel may be fluorosilicone and the diaphragm may be dimethyl silicone. The membrane material is chosen to be substantially impermeable to the ambients or process media being measured and also flexible, is to be poured and cured in place on the assembly during fabrication.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: February 19, 1991
    Assignee: The Foxboro Company
    Inventors: Edward F. Koen, Richard Tasker
  • Patent number: 4993145
    Abstract: An apparatus for gripping a tube end of a plate fin heat exchanger by a pair of coacting jaw grippers movable both longitudinally and radially with respect to the tube end. The coacting jaw grippers are positioned such that the tube ends of a multirow coil can be gripped along any row of the coil.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: February 19, 1991
    Assignee: Carrier Corporation
    Inventor: Kenneth P. Gray
  • Patent number: 4993151
    Abstract: In a marine drive having a tapered propeller shaft section (14) and a tapered propeller hub (20, 60) matching and fitting therearound in flush contact, a relief inner diameter section (28, 66) is provided in the hub, spaced from the propeller shaft, to prevent flush contact and facilitate removal of the propeller hub from the propeller shaft. In a further embodiment, a thrust collar (50) with a substantially steeper tapered section (56) further facilitates removal.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: February 19, 1991
    Assignee: Brunswick Corporation
    Inventors: Ronald M. Steiner, Roger E. Koepsel, Hubert S. Gilgenbach, Terence C. Reinke
  • Patent number: 4989319
    Abstract: A chemical etching technique provides longitudinally extending capillary grooves of variable cross-sectional dimension on the interior surface of a heat pipe.
    Type: Grant
    Filed: July 9, 1990
    Date of Patent: February 5, 1991
    Assignee: Lockheed Missiles & Space Company, Inc.
    Inventors: Michael R. Kapolnek, Alexander R. Feild, Robert T. Hartle, Hillard R. Holmes
  • Patent number: 4989315
    Abstract: The sealing and guiding element comprises an extruded elastomer with metal backing which includes a first U-shaped part forming a grip, suitable to be fitted on the frame of the movable window and a second U-shaped part turned the opposite way round to the first part and acting as a guiding and weathersealing member for the movable window. The first and second parts are joined together by a flexible resilient hinge contained in the elastomer without metal backing. The hinge permits a dual freedom of movement to the second part, on the one hand pivoting in relation to the said first part and, on the other hand, in translation substantially in the plane of movement of the movable window.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: February 5, 1991
    Assignee: Mesnel S.A.
    Inventors: Gerard Mesnel, Francois Mesnel
  • Patent number: 4987666
    Abstract: A tear away seam stabilizer for a vehicle seat component is provided for use with the pour-in-place molding process. The stabilizer, or welt, has an annular body attached to a notched tab portion by a tapered portion and neck portion which is sewn between covering members to form the desired shape of a component. A mold is provided within which the sewn cover, with the seam stabilizers in place, is inserted. The stabilizers maintain alignment of the seams in the cover member during the pour-in-place process and also prevent wrinkles in the cover. The end result is a vehicle seat component with the cover member tightly adhered to the foam body and conforming to a surface of predetermined shape. Once the foam pad is adhered to the cover member, the annular body of the stabilizer is readily torn off.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: January 29, 1991
    Assignee: Hoover Universal, Inc.
    Inventor: Sandra L. Smith
  • Patent number: 4985991
    Abstract: A screw-on electrical connector is made by a method in which the manufacturing procedure or process is greatly simplified and the resultant connector is of a high quality. method or procedure involves bringing an insulating shell into contact with a coil which is positioned in the bore of the shell and is secured therein in one step by supplying sufficient heat to the bore of the shell to soften it and cause it to flow into an adherent relationship with the outer portions of the coil. At the same time, sufficient axial pressure is applied between the coil and the shell to cause the two to firmly interlock.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: January 22, 1991
    Assignee: Ideal Industries, Inc.
    Inventor: Jerome W. Finn
  • Patent number: 4984350
    Abstract: A resonator for reducing air intake noise levels occurring in air intake systems of automotive vehicles and an easy installation method therefor are provided. This resonator includes a first tube and a second tube shorter than the first tube to reduce noise at different frequency bands, each extending laterally into a bumper from an air intake duct of an air cleaner. For installation of the resonator, one of a pair of bumper stays is mounted at the front of one of a pair of side members of a vehicular frame. Then, the first tube is attached to said first bumper stay and the second tube is attached to a bracket provided on a radiator core supporting member within the engine compartment. Subsequently, a second bumper stay already installed on a bumper reinforcement member is mounted to the other front side member so as to dispose said first and second tubes within the bumper reinforcement. Finally, the bumper reinforcement is installed to the first bumper stay to be secured to the front of the vehicle frame.
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: January 15, 1991
    Assignee: Nissan Motor Company, Limited
    Inventor: Toshihiko Hayashi
  • Patent number: 4981315
    Abstract: A tip having a flattened part (1b) which has a suction gripping (1b2) at the end, which is raised very slightly to reduce the contact surface of the wafer and prevent it from touching the rest of the flattened part.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: January 1, 1991
    Assignee: Recif, S.A.
    Inventors: Bernard Poli, Gerard Chincholle
  • Patent number: 4979294
    Abstract: An improved method for the speedy and efficient repair of tubes contained in a furnace boiler waterwall involves milling an elongated slot at each end of a damaged tube section in a water wall, which section is thereafter cut away and replaced with a replacement tube section having elongated slots milled at each end which are cut to mate to existing tubes. The replacement tube section and existing tubes are aligned to form elongated slots through which interior welds are made to secure the replacement tube section. The elongated slots are then closed with covers cut from a second section of replacement tubing, and the water wall web is attached to the replacement tube section to complete the repair. Also disclosed are a milling machine used to mill the elongated slots, and drill and saw fixtures to aid in cutting away the damaged tube section.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: December 25, 1990
    Assignee: The Dayton Power & Light Company
    Inventors: Paul W. Bowman, Andrew F. Estill, Michael D. Gatherwright, Robert L. Smith
  • Patent number: 4974782
    Abstract: A two roll pressure developer for a microencapsulated web or medial material includes rolls which have a support shaft through the center, a hollow annular shell, and load-bearing elastomer material between the shaft and the shell supporting the shell and controlling the deflection of the shaft under development loads. The elastomer material is formed as a plurality of discrete annular segments with inside diameters mounted on the shaft and outer diameters mounted in the shell. The segments are distributed along the length of the shaft so as to provide the roll with a variable modulus of elasticity which is highest at the axial center of the shaft and lower at the ends. In one embodiment, the segments are identical in width and are varied in pitch or axial spacing. In another embodiment, the segments are spaced at the same pitch but are varied in axial thickness.
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: December 4, 1990
    Assignee: The Mead Corporation
    Inventor: Erik K. Nelson
  • Patent number: 4974318
    Abstract: A dual-shaft machine comprising a housing, two pistons rotatably mounted in the housing leaving a cold play spacing between one another and said housing, and a coating provided on either the housing or the pistons, or both, to reduce the cold play spacing to that required by the intended field of use of the machine.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: December 4, 1990
    Assignee: Leybold Aktiengesellschaft
    Inventors: Josef Heppekausen, Hans-Peter Kabelitz, Karl-Heinz Ronthaler, Ralf Steffens
  • Patent number: 4972571
    Abstract: Ladder constructions and methods of forming the same wherein box-type or tubular rails are employed. The rung-to-rail connection or joint is formed by providing an opening in one of the rail side walls and an aligned clearance hole in the opposite rail side wall to afford an opening through which a swaging tool is projected and forms an annulus in tight engagement into the inner surfaces surrounding the opening in the first named rail side wall, cooperating swaging means forming an annulus on the outer surfaces surrounding the said opening. A ladder having tubular side rails is hence provided with a rail-to-rung joint on one of the walls by projecting a swaging tool through a clearance hole in an opposite wall. The clearance hole is adapted to be closed by placing a plug in the same and in the event the clearance hole is in the innermost side rail the rung is adapted to be used to close the space provided by the opening in the rail between the rung and one of the side rails.
    Type: Grant
    Filed: December 10, 1984
    Date of Patent: November 27, 1990
    Assignee: R. D. Werner Co., Inc.
    Inventors: Paul E. Cole, Brian R. Fisher
  • Patent number: 4970781
    Abstract: A process plate for the manufacture of molded electronic packages such as plastic pin grid array packages is provided. The process plate is a single fixture which is used to position terminal pins, align the pins for electrical interconnection and form the base of the mold during encapsulation. In one embodiment, the process plate comprises a support plate which is used for all standard terminal pin configurations and a thin cover plate which is specific for each terminal pin configuration. The process plate reduces the number of fixtures required to mold an electronic package reducing both cost and assembly error.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: November 20, 1990
    Assignee: Olin Corporation
    Inventors: Kin-Shiung Chang, Thomas A. Armer, Jeffrey S. Braden, George A. Anderson
  • Patent number: 4970783
    Abstract: A method of cracking bearing assembles including the steps of (a) forming a ductile metal (steel, aluminum or titanium) connecting rod in one piece (e.g., by hot forging) having an annular wall defining a crankshaft opening with preformed surface crevices for guiding the initiation of a cracking plane that extends across the crank opening; (b) charging (i.e., for about 40 seconds) the region of such wall along at least one portion of the cracking plane with hydrogen by means of an electrolytic cell or by means of reacting the metal rod with a strong acid (e.g., concentrated sulfuric) to cause hydrogen to dissolve in the metal to facilitate hydrogen stress cracking thereat, with or without the imposition of static mechanical tensile loading at such crevices (i.e., for about 40 seconds) of a magnitude insufficient to cause yielding of the metal; and (c) prolonging, increasing, or imposing the static mechanical loading (i.e.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: November 20, 1990
    Assignee: Ford Motor Company
    Inventors: Moses A. Olaniran, Charles A. Stickels