Patents by Inventor Ragnar Holthe

Ragnar Holthe 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).

  • Method for the production of a tubular body, and control arm produced by this method
    Patent number: 9038270
    Abstract: In a method of making a tubular body, material is pressed through a die of a forming tool into a first mold cavity disposed in downstream relationship to the die to produce a first end piece. A mandrel is then moved in a direction of the die to thereby displace the mold cavity in the same direction and to extrude a tubular center piece to adjoin the first end piece. The mandrel is then replaced by a mold having a second mold cavity to mold a second end piece to adjoin the center piece.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: May 26, 2015
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventor: Ragnar Holthe
  • METHOD FOR THE PRODUCTION OF A TUBULAR BODY, AND CONTROL ARM PRODUCED BY THIS METHOD
    Publication number: 20130269476
    Abstract: In a method of making a tubular body, material is pressed through a die of a forming tool into a first mold cavity disposed in downstream relationship to the die to produce a first end piece. A mandrel is then moved in a direction of the die to thereby displace the mold cavity in the same direction and to extrude a tubular center piece to adjoin the first end piece. The mandrel is then replaced by a mold having a second mold cavity to mold a second end piece to adjoin the center piece.
    Type: Application
    Filed: October 9, 2012
    Publication date: October 17, 2013
    Inventor: Ragnar Holthe