Patents by Inventor Stefen Blank

Stefen Blank 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: 5954460
    Abstract: An improved drill stand is provided which includes a stand column slidably connected to a bearer unit so that the position or height of the bearer unit with respect to the stand column may be adjusted. The bearer unit includes a gear segment which is biased toward the retracted position by a reset spring. The gear segment is meshed with a geared slide rod. The geared slide rod may be disposed parallel to or perpendicular to the stand column. The slide rod is connected to a machine receiving part. Rotation of the gear segment with respect to the bearer unit against the bias of the reset spring results in movement of the slide rod in the machine receiving part towards an extended position. The machine receiving part is also connected to a bit stop rail. The bit stop rail is connected to a bit stop. The position of the bit stop along the bit stop rail is also adjustable. Movement of the machine receiving part towards the extended position is limited by engagement of the bit stop with the bearer unit.
    Type: Grant
    Filed: December 8, 1997
    Date of Patent: September 21, 1999
    Assignee: Wolfcraft GmbH
    Inventors: Klemens Degen, Stefen Blank, Edmund Apolinski, David R. Daniels
  • Patent number: D392534
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: March 24, 1998
    Assignee: Wolfcraft GmbH
    Inventors: Klemens Degen, Stefen Blank, Edmund Apolinski, David R. Daniels