Patents Represented by Attorney Willian Anthony Drucker
  • Patent number: 4037458
    Abstract: This invention provides a method and device for eliminating vibration and for silencing noise caused during operation of a crank-driven press tool. A brake operates on the crank shaft of the press tool from just before to just after the termination of the press stroke, thereby preventing the kinetic energy of the mechanical components and metal mold from being reduced instantaneously to zero and thus preventing the generation of vibration and noise usually occurring during press work in a crank-driven press tool.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: July 26, 1977
    Inventor: Fumio Sato