Patents by Inventor Hans-Hermann Houweling

Hans-Hermann Houweling 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: 4301621
    Abstract: Anti-closing device for use with automatically opening and closing doors or the like, having a reversing switch for the door drive and a flexible rope for actuating the switch, the rope being held vertically along the free edge of the door in spaced relation and resiliently tensioned under spring action. One end of the rope is operatively connected to the switch for actuating the switch upon a deflection of the rope. A plurality of sleeves are arranged in a vertical row on the flexible rope and the lower end of the rope is connected to the lowermost sleeve while the uppermost sleeve bears against a support secured to the door whereby the sleeves are pressed against one another by the tensioning of the rope. The end surfaces of the sleeves which face one another bear tightly against each other in the position of rest and have a substantially larger outside diameter than the flexible rope.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: November 24, 1981
    Assignee: Gebr. Bode & Co.
    Inventor: Hans-Hermann Houweling