Patents by Inventor Ralf Brutschin

Ralf Brutschin 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: 6601794
    Abstract: A cable drum, having a substantially cylindrical drum body with drum walls arranged at its axial ends and a groove arrangement arranged on the drum body, enables winding of a cable in a rotational direction clockwise as well as counter-clockwise thereto. The groove arrangement has parallel areas in which the grooves are parallel to the circumferential direction and incline areas in which the grooves are slanted at an angle relative to the circumferential direction of the drum body. All grooves in the parallel areas have identical groove width. The grooves in the incline areas cross one another.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: August 5, 2003
    Assignee: Rotzler GmbH & Co. KG
    Inventor: Ralf Brutschin
  • Publication number: 20030006337
    Abstract: A cable drum, having a substantially cylindrical drum body with drum walls arranged at its axial ends and a groove arrangement arranged on the drum body, enables winding of a cable in a rotational direction clockwise as well as counter-clockwise thereto. The groove arrangement has parallel areas in which the grooves are parallel to the circumferential direction and incline areas in which the grooves are slanted at an angle relative to the circumferential direction of the drum body. All grooves in the parallel areas have identical groove width. The grooves in the incline areas cross one another.
    Type: Application
    Filed: June 21, 2002
    Publication date: January 9, 2003
    Applicant: Rotzler GmbH & Co. KG
    Inventor: Ralf Brutschin
  • Patent number: 6471191
    Abstract: A cable guide arrangement for a cable winch has a housing to be mounted relative to a cable winch such that a first end of housing faces the cable winch and a second end of the housing faces away from the cable winch. A cable guide channel penetrates the housing and has a closed circumferential wall. The cable guide channel has a longitudinal center axis extending perpendicularly to the first and second ends of the housing. The cable guide channel has open end portions at the first and second ends of the housing, respectively. The open end portion of the guide channel at the second end of the housing widens in a direction away from the cable winch to form an inlet funnel having an edge portion defining a funnel opening. The inlet funnel reduces wear on the cable especially when being pulled at a slant to the center axis through the cable guide arrangement.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: October 29, 2002
    Assignee: Rotzler GmbH & Co. Spezialfabrik für Seilwinden und Hebezeuge
    Inventors: Jürgen Rotzler, Ralf Brutschin, Dietmar Kessler