Patents by Inventor Hans Wurth

Hans Wurth has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5073071
    Abstract: A shaft stop bushing (1) is proposed which is retained in a given position on a shaft (6) by means of a radially resilient stop ring (12). The stop bushing (1) has a longitudinal bore (4) with two circular grooves (7 and 11) of different diameters, between which a funnel-shaped section (10) is formed. The stop ring (12) is inserted in the larger groove (11) so that stops bushing (1) and stop ring (12) form a pre-assembled subassembly (1, 12). The preassembled subassembly (1, 12) can be slid onto the shaft (6) by a simple automatized process without the stop ring (12) touching the shaft (6). The stop ring (12) is retained in its axial position relative to an annular groove (16) of the shaft (6) and is pressed into the annular groove (16) by the stop bushing (1) upon further axial movement of the stop bushing. The entry funnel-shaped section (10) presses the stop ring (12) until, in the assembled state, the smaller-diameter circular groove (7) engages over the stop ring (12).
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: December 17, 1991
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Herwig, Dittmar Kleemann, Uwe Kroger, Hans Wurth, Martin Mayer, Franz-Josef Meyer, Werner Rometsch, Erhard Schenkemeyer, Martin Schneider, Jurgen Sollick, Lore Kochendorfer, Claus Kochendorfer
  • Patent number: 4973873
    Abstract: An electric machine for cranking devices of internal combustion engines includes a housing in which pole pairs carry a wave winding. The pole pairs are arranged so as to be offset relative to one another in the direction of the longitudinal axis of the housing. The constructional length of the electric machine and the work material requirement for the wave winding can accordingly be reduced without the reduction of power of the electric machine.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: November 27, 1990
    Assignee: Robert Bosch GmbH
    Inventor: Hans Wurth
  • Patent number: 4906420
    Abstract: Oral and extraoral prosthetic constructions of composite material with considerable fiber content, and in particular, jawbone anchored dental bridges of reinforced plastic, are made by the following method. A number of mutually retracted tubularly braided fibers (1), possibly in combination with continuous fiber strands, so-called roving, together constitute a fiber system which is packed in a tube, hose (2) or the like which is sealed and serves as outer packaging. A suitable matrix material, for example acrylic plastic, is injected into the hose for impregnation (wetting) of the enclosed fiber system, whereafter the hose (2) is removed. The fiber system is then polymerized to form a finished prosthesis blank in a mold. The prosthesis blank is then given suitable form and appearance by conventional after treatment.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: March 6, 1990
    Assignees: Nobelpharma AB, AB Novel Plast
    Inventors: Izidor Brajnovic, Ingrid Tilly, Hans Wurth
  • Patent number: 4578853
    Abstract: To provide for precise alignment, with easy assembly of stacks of lamellae which form, for example, the armature of a dynamo electric machine, so that the winding slots will be aligned and the lamellae held together by frictional engagement and interlocking engagement of projections and recesses, the recesses are formed by a deformation process in which, first, holes are punched into the lamella elements at each location where the recesses--projections or bulges are to be placed, the holes being smaller than the recesses or projections and located centrally with respect thereto. The edge zones of the holes are then deformed so that the edge zones will have, along a diametrical line, at least approximately part V or roof shape, thereby forming corresponding projections at the other sides of the strip, the angle of the V or roof-shaped surfaces being about
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: April 1, 1986
    Assignee: Robert Bosch GmbH
    Inventor: Hans Wurth
  • Patent number: 4448055
    Abstract: A blank 1 is removed from a strip of material 2 and placed in a die against which a lower punch and an upper punch are operable. In one step, by moving of the lower punch upwardly, shaped to form the pole core or pole piece, and the upper punch against the blank in the die, the pole piece, pole shoes, and outer pole radii at the end portions are formed. If desired, the pole can be perforated and the perforation formed with a thread, and accurately sized in the subsequent cutting and sizing step.
    Type: Grant
    Filed: August 16, 1982
    Date of Patent: May 15, 1984
    Assignee: Robert Bosch GmbH
    Inventors: Hans Wurth, Jurgen Leinhos
  • Patent number: 4389692
    Abstract: A thermoswitch is physically located on a portion of the current supply connector between the current source and the exciter winding of the starter motor. The portion, constructed as a simple strip with flaps holding the thermostat, influences the temperature-dependent control portion of the thermoswitch according to heating in the armature, field winding, and brushes of the starter motor. The thermoswitch turns OFF the starter system by interrupting current supply to the kick-in starter relay.
    Type: Grant
    Filed: January 21, 1981
    Date of Patent: June 21, 1983
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Sander, Hans Wurth