Patents by Inventor Werner Thur

Werner Thur 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: 4790162
    Abstract: This mounting and protection plate for door lock handles is applicable notably as an ornamental fitting to the doors of private houses. The plate (5) comprises a back recess (9) in which a spiral return spring (10) is disposed. The inner turn of the spring has a square configuration engaged by the square-sectioned handle-bar of the door lock which interconnects the handle and the lock mechanism, and the outer turn of the spring is anchored to the plate by engaging a groove formed therein, the spiral spring constantly urging the handle to its normal, inoperative position, independently of the lock spring.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: December 13, 1988
    Inventor: Werner Thur
  • Patent number: D313541
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: January 8, 1991
    Inventor: Werner Thur