Patents Represented by Law Firm Nies, Webner, Kurz & Bergert
  • Patent number: 4911209
    Abstract: A method and apparatus for automatically forming and welding wire mesh cages useful in reinforcing standard concrete pipe. Prefabricated wire mesh is fed from a coil through a straightener and shear section onto a mandrel. A predetermined length of the wire mesh is sheared and then rolled in cage form on the mandrel and, once rolled, is welded to retain the mandrel shape. The entire operation is automatically controlled by an integrated electrical control and logic system and is run by a single operator. The welding system employs a plurality of small TIG welders which are operated in sequence to reduce power supply demands and which can weld wire in any condition even rusted wire.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: March 27, 1990
    Assignee: Expo Wire Company
    Inventors: Richard V. Smith, Arthur M. Shannon
  • Patent number: 4907476
    Abstract: A speed socket wrench which substantially reduces the work required to remove nuts or bolts is disclosed. The wrench includes a bevel gear and mating bevel pinion mounted respectively on a gear shaft and pinion shaft. A drive shaft is provided on the outer end of the pinion shaft. A reversing ratchet mechanism is employed to lock the drive shaft. The specific construction and arrangement of components provides a socket wrench which has been found to substantially reduce the work required to remove nuts or bolts, as compared with conventional wrenchs. The present invention provides an improved T-handle for use with a tool having a shaft which rotates about its longitudinal axis.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: March 13, 1990
    Assignee: Sidewinder Products Corporation
    Inventor: Robert P. Singleton
  • Patent number: 4901983
    Abstract: A high-temperature resistant blast pipe is primarily intended for delivering gas, such as oxygen, and, when appropriate, solid material to metallurgical processes, and incorporates a layer of refractory material comprising a refractory mixture of solid particles and an alkali-silicate based binder.The blast pipe is characterized in particular in that the major constituent of the binder is of the type polymerized alkali silicate.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: February 20, 1990
    Assignee: Oxy-Tuben AB
    Inventor: Arne Larsson
  • Patent number: 4901905
    Abstract: A charging system for seam welding two or more workpieces by means of explosion welding, comprising an explosive charge and an inert impulse-transmitting body located between the explosive charge and the workpiece nearest the charge. The invention is characterized in that the surface (11) of the inert body (2) facing the workpiece is so configured in a plane extending at right angles to the longitudinal extension of the ultimate weld seam that the angle .alpha. between the surface (11) and the workpiece (3) varies from the center line (C--C) of the inert body (2) perpendicularly to the surface of the workpiece and outwardly from the center line.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: February 20, 1990
    Assignee: Exploweld AB
    Inventor: Ingemar Persson
  • Patent number: 4902478
    Abstract: An indicator sheet for an autoclave test pack wherein a pair of porous masses (10) are held in close superimposed relationship by means of a clamp (13) with the indicator sheet (12) sandwiched between them. The indicator sheet (12) has printed thereon a pattern of markings (14) formed from one or more substances which are adapted under steam sterilizing conditions to provide an indication of the presence of air and/or excessive moisture such that each is evident and individually identifiable.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: February 20, 1990
    Assignee: The Victoria University of Manchester
    Inventor: Roger Hambleton
  • Patent number: 4899770
    Abstract: Apparatus for cleansing the upper interior surfaces of a concrete sewer conduit, the apparatus including the concrete sewer pipe and a plurality of spray nozzles spaced apart and adapted to be introduced into and disposed in and along a length of concrete sewer to enable continuous or intermittent spraying of the upper interior surfaces or, alternatively, to be permanently mounted along the length of the concrete sewer conduit when newly constructed.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: February 13, 1990
    Inventor: R. E. Wilson
  • Patent number: 4898605
    Abstract: A glass vessel, in particular an ampoule, having a prestress produced at a predetermined spot of the vessel which permits an automatic opening of the vessel at the predetermined spot following scratching by means of a suitable tool. The prestress, which is produced exclusively by means of an earlier thermal treatment without the application of a tool exhibits a stress profile in which an initially produced annular tensile stress ring, is overlapped at a predetermined spot by a point-shaped compressive stress zone that is produced subsequently.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: February 6, 1990
    Assignee: Schott Ruhrglas GmbH
    Inventor: Reinhard Mannl
  • Patent number: 4896785
    Abstract: A glass cover or lid for a chest freezer of the kind in which the goods contained therein are intended to be viewed through the glass cover and which chest is constructed so that a substantially stationary cushion of air can be generated immediately beneath the glass cover, preferably a chest which lacks devices for forcibly circulating air in the chest. The glass cover (1) includes a glass panel or two mutually parallel panels, and the side of the glass cover facing inwardly towards the interior of the chest is provided with a layer for reflecting infrared radiation.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: January 30, 1990
    Assignee: Termofrost AB
    Inventor: Sven-Erik Sodervall
  • Patent number: 4897112
    Abstract: A method for heating primarily a so-called nozzle (2) through which a hot medium (10) in a liquid phase or in a liquid phase like condition, such as a molten metal, e.g. molten steel, is intended to pass in conjunction with a casting or molding operation for example.The method is particularly characterized in that the nozzle (2) is pre-heated prior to being brought into contact with the medium (10) and/or is heated at least periodically while medium is passing through the nozzle. Heating of the nozzle is effected with the aid of microwaves and the nozzle includes material which exhibits a significant loss factor with regard to microwaves. The nozzle is heated preferably for the purpose of avoiding blockages and the like from occurring in the nozzle as a result of a temperature decrease in the medium passing therethrough.The invention also relates to apparatus for carrying out the method.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: January 30, 1990
    Assignee: Sven Ekerot
    Inventors: Sven Ekerot, Jan Svennebrink
  • Patent number: 4895181
    Abstract: A packingless gate valve comprises a housing having two opposed resilient sleeve units that compressibly engage end to end in the valve open condition and engage opposite sides of the gate in the valve closed condition. Each sleeve unit is a resilient annular body formed at one end with an axially projecting seal lip near the inner periphery and has a stiffener ring enclosed adjacent the outer periphery at the one end. An integral gasket forming flange is formed on the other end of the sleeve body.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: January 23, 1990
    Assignee: The Clarkson Company
    Inventor: Thomas P. McKavanagh
  • Patent number: 4892543
    Abstract: An intraocular lens that provides accommodation in direct response to contraction and relaxation of the ciliary body. The lens includes a first component having fixed refractive power and a second component having varying refractive power, the components being relatively movable towards each other as the ciliary body contracts to increase the total refractive power of the lens.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: January 9, 1990
    Inventor: Dana F. Turley
  • Patent number: 4890425
    Abstract: A sump crock cover for airtight istallation on the surface of a floor directly over a sump pump opening is disclosed. The cover includes a sump lid base member of generally circular shape having two spaced apart annular sealing rings which assit in preventing the escape of hazardous gases such as radon enriched soil gas. The cover has an integral radially extending ribbed section with a central aperture for the purpose of receiving a flexible grommet which provides a seal around sump discharge piping and electrical wiring. Effective O-ring sealing is obtained by positioning the O-rings radially inwardly and outwardly of the bolts which mount the cover to the floor and by providing for installation of the O-rings in grooves in the sump lid so that the O-rings extend beyond the plane of the sump lid.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: January 2, 1990
    Assignee: Terrashield, Incorporated
    Inventor: Ned Mamula
  • Patent number: 4890772
    Abstract: A transport and storage container for concentrates of beverages or the like for making a ready-to-drink beverage by means of a drink-making machine is provided in the form of an inner bag package, whereof the two narrow side walls, as well as the top and bottom, are parallel to each other, whereof the narrow side wall containing the concentrate outlet, removal and connection, piece and the opposite narrow side wall form angles of approximately 93.degree. and 87.degree. with the top and with the bottom. The two triangular wall portions of the inner bag gussets located in the bottom and top planes of the package are sealed or welded together, and a viewing window structure is provided in the outer cardboard casing of the package adjacent the end where the concentrate outlet piece is located.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: January 2, 1990
    Assignees: Carl Edelmann Verpackungstechnik, Coca Cola Company
    Inventors: Erich Heuberger, Wolf-Dieter Knorrich, Joachim W. Dziallas
  • Patent number: D305081
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: December 19, 1989
    Inventor: Raymond Grosfillex
  • Patent number: D305314
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: January 2, 1990
    Assignee: Baby Relax
    Inventor: Francois Julien
  • Patent number: D305729
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: January 30, 1990
    Assignee: Laiteries E. Bridel
    Inventor: Christophe Bridel
  • Patent number: D306107
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: February 20, 1990
    Inventor: Raymond Grosfillex
  • Patent number: D306108
    Type: Grant
    Filed: January 23, 1987
    Date of Patent: February 20, 1990
    Inventor: Raymond Grosfillex
  • Patent number: D306139
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: February 20, 1990
    Assignee: Laiteries E. Bridel
    Inventor: Christophe Bridel
  • Patent number: RE33272
    Abstract: Filter cartridge for filtering apparatuses for removing impurities from hot and/or highly pressurized flowing gases, with zig-zag formed, folded, gas-penetrated filter material whose part surfaces caused by the folding, between the fold lines, are arranged in relatively close juxtaposition to each other, wherein a preferably thin-walled plate 15 is arranged in the space between two respectively adjacent part surface 12, 13 of the filter material 11, with said plate having one straight-formed edge 16 lying in the inside of the fold 14 and one opposite lying zig-zag formed edge 17, and the bend or crest lines 18 between the two edges 16, 17 rise steadily towards the medial plane 19 of the plate 15.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: July 24, 1990
    Inventor: Ernst Turck