Patents by Inventor William A. Dziak

William A. Dziak 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).

  • Wear collar device for rotatable cutter bit
    Patent number: 4489986
    Abstract: A mounting system for rotatably supporting a cutter bit which includes a mounting block for rotatably supporting a cutter bit and having a detachable and replaceable wear collar member for supporting the bit within the block which acts to prevent wear between the bit and the block.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: December 25, 1984
    Inventor: William A. Dziak
  • Cutter mounting and apparatus and method for a drill bit
    Patent number: 4356873
    Abstract: A drill assembly comprising a tool bit of the type including a slot at one end for receiving a cutting element. A positioning clip removably disposed in the slot and having a cutting element engagement structure for maintaining the position of the cutting element within the retainer clip, and drill body engagement structure for locating and maintaining the position of the clip within the slot of the tool bit.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: November 2, 1982
    Assignee: Mining Tools, Div. of Smith Int'l., Inc.
    Inventor: William A. Dziak