Patents by Inventor Harald Harrer

Harald Harrer 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).

  • Adjustable-length column for chairs or the like
    Patent number: 6007044
    Abstract: An adjustable-length column for chairs or the like comprises an upright tube with a pneumatic or hydropneumatic length-adjusting element disposed therein. The latter's piston rod, in the vicinity of its free end, is flexibly snap-engaged with a bottom plate of the upright tube.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: December 28, 1999
    Assignee: Suspa Compart Aktiengesellschaft
    Inventor: Harald Harrer
  • Adjustable-length column for chairs, tables or the like
    Patent number: 5531413
    Abstract: An adjustable-length column for chairs or the like has an upright tube and a pneumatic or hydropneumatic length-adjusting element arranged in the latter, the housing of the element being radially supported in the upright tube and displaceably guided in the direction of a common axis. A profile guarding against twisting is tightly arranged on the housing in particular by shrinking and has at least one radially projecting web which extends parallel to the axis and engages with a groove-like recess of a guide which is non-rotatably connected with the upright tube.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: July 2, 1996
    Assignee: Suspa Compart Aktiengesellschaft
    Inventors: Herbert Wolf, Harald Harrer