Patents by Inventor Erich Voldemar Kimber

Erich Voldemar Kimber 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).

  • Drill boom with hydraulic parallel motion means
    Patent number: 4037671
    Abstract: In a drill boom pivotally supporting a rock drilling apparatus, hydraulic parallel motion means is provided which includes a hydraulic pilot cylinder for sensing the setting of the elevation angle of the drill boom. During elevating of the drill boom the hydraulic pilot cylinder is furthermore used as an additional elevating cylinder.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: July 26, 1977
    Assignee: Atlas Copco Aktiebolag
    Inventors: Erich Voldemar Kimber, Per-Axel Carsten Ronne
  • Drill boom arrangement
    Patent number: 3993271
    Abstract: A drill boom arrangement for positioning an elongated rock drilling apparatus to different drilling positions with respect to a support. The rock drilling apparatus is carried by a drill boom and the drill boom is mounted on a boom bracket. The boom bracket is slidable relative to the support in the latitudinal direction of the rock drilling apparatus. The boom bracket is moved along guiding means on the support means of a hydraulic cylinder. Means are provided for gearing up the piston stroke of the hydraulic cylinder.
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: November 23, 1976
    Assignee: Atlas Copco Aktiebolag
    Inventor: Erich Voldemar Kimber