Patents by Inventor Robert Zwyssig

Robert Zwyssig 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).

  • Lock for bracelets, belts and the like
    Patent number: 4115904
    Abstract: This disclosure relates to locks for bracelets, belts and the like to fasten two ends of the same together. The lock basically includes sliders which are attached to the ends of the bracelet, etc., with the sliders having rack formations which are engaged by a single gear to effect the simultaneous inward and outward movement of these sliders. Associated with the gear is a ratchet wheel and depressable keys are provided for effecting the locking, releasing and rotation of the ratchet wheel and the associated gear.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: September 26, 1978
    Assignee: Zwyro A.G.
    Inventors: Robert Zwyssig, Bernhard Tesch