Patents by Inventor George A. Osterwise

George A. Osterwise 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).

  • Miner cutting bit holding apparatus
    Patent number: 4944560
    Abstract: A bit shoulder for attachment of a mining cutting bit to a driven element is provided. The bit holder includes a base member which may be attached to the driven element. The bit holder is provided with a forward body member having forward and rearward surfaces and a bore for receiving therethrough the extended shank of a cutting bit. A rearward member is also attached to the base member and includes an anvil portion having an anvil surface spaced from and facing the rearward surface. A reinforcement member is provided between the rearward member and the rearward surface to rigidify the bit holder.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: July 31, 1990
    Assignee: Joy Technologies Inc.
    Inventor: George A. Osterwise