Patents by Inventor Hans Schanz

Hans Schanz 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: 6079472
    Abstract: A roller shutter arrangement, more especially for obliquely arranged roller shutter areas comprising a roller shutter element running in lateral guide rails and adapted to be wound and unwound on and from a take-up shaft arranged at one end of the roller shutter area. At least one elastic draw cable is provided engaging the free end part of the roller shutter element, and this draw cable is stretched on winding up the roller shutter element on the take-up shaft and on unwinding provides an elastic force aiding the unwinding operation. This means that automatic unwinding of the roller shutter element is possible in a simple and economic manner even if there is an insufficient or no action of gravity.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: June 27, 2000
    Inventor: Hans Schanz
  • Patent number: 6006815
    Abstract: A roller shutter member for a roller shutter arrangement, which comprises individual, articulatingly connected slats, each slat being connected at one of its two connected longitudinal sides with a hook joint rail and at its other connected longitudinal side with a hook receiving channel. The hook receiving channels are provided with sealing rails. The hook-like joint rails are thrust in a sealing manner against the sealing rail in the flat region on the roller shutter member when the slats are extended in a linear form so that a sealed roller shutter member is formed.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: December 28, 1999
    Inventor: Hans Schanz
  • Patent number: 5819831
    Abstract: A roller blind drive comprising a roller blind member running along an oblique area to be shaded and a motor-driven and rotatably mounted winding shaft onto and from which the roller blind member may be wound and unwound. The winding shaft is mounted in a sliding manner at each end in respective guide tracks, which in the assembled state extend obliquely downward. The displacement of the winding shaft due to gravity in a downward direction is limited by a guide shoe element arrangement, the roller blind member unwound from the winding shaft being guided along such guide shoe element arrangement toward the oblique area.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: October 13, 1998
    Inventor: Hans Schanz