Patents by Inventor Karlheinz Johne

Karlheinz Johne 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: 6228307
    Abstract: The invention is directed to a method and a device for bending a component (71) made of a thermoplastic material, and to the component (71) itself, in particular a sleeve-shaped component having a straight shank (72), for use in a personal care appliance such as a dental care, a hair care, a kitchen apparatus or the like. A holding means (70) is provided for supporting the component (71) to be formed to shape, and the component (71) is formed by at least two tools (76, 84, 92) arranged for movement relative to each other, and a heating unit is provided for heating the component (71) in its condition as formed.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: May 8, 2001
    Assignee: Braun GmbH
    Inventors: Hans Kastl, Ulrich Schenk, Karlheinz Johne, Rudolf Majthan
  • Patent number: 6103173
    Abstract: A method for bending a component made of a thermoplastic material. The component involved is in particular a sleeve-shaped component for a personal care appliance such as a dental care apparatus or the like. For the component to be bent it is heated up to the plastic's softening point. The component is brought into engagement with a forming rail and, during a relative movement of the component and the forming rail, is bent against the forming rail by means of a bending tool. As this occurs, the engagement surface between the component and the forming rail varies continuously.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: August 15, 2000
    Assignee: Braun Aktiengesellschaft
    Inventors: Hans Kastl, Ulrich Schenk, Karlheinz Johne, Rudolf Majthan
  • Patent number: 5802932
    Abstract: A cutter which performs the function of either the outer or the inner cutter in a cutting device comprised of outer and inner cutters of an electric shaving apparatus or an electric beard trimmer. The cutter includes in its cutting area configured as a plane sliding surface a plurality of teeth extending from a comb strip with slots therebetween and with cutting edges formed on the tooth edges. Arranged on the cutter are one or several wall portions angled relative to the cutting area. The cutting area of the cutter includes a blade made of hardened sheet steel, with the teeth of the blade being produced by etching. The wall portions of the cutter are formed by welding one or several formed sheet metal sections to the blade. The weldment is effected such that the resulting rise in temperature of the blade is so low that the hardened sheet metal material is neither adversely affected by deformations nor exposed to significant losses in respect of hardness and wear resistance.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: September 8, 1998
    Assignee: Braun Aktiengesellschaft
    Inventors: Michael Vankov, Karlheinz Johne, Dieter Huth, Gunther Seidel, Rudolf Majthan, Lutz Voigtmann