Patents by Inventor Joel D. Colliau

Joel D. Colliau 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: 4534683
    Abstract: A holding or checking means for holding the control rod of a reciprocating drill feed control apparatus in position after each advancing movement of an automatic drilling machine during a "peck drilling" operation. The holding means includes a cylindrical body adapted to be fastened over the end of a drill feed control apparatus and with the control rod of the feed control apparatus extended through said body. A pair of pivotally mounted yoke arms are mounted on a cylindrical body and have semi-circular recesses adapted for friction holding engagement with the feed control rod to hold it in an advanced position when the reciprocating drill apparatus is retracted. The holding means includes a biasing means for biasing the yoke arms into friction engagement against the control rod.
    Type: Grant
    Filed: January 20, 1984
    Date of Patent: August 13, 1985
    Assignee: Ace Controls, Inc.
    Inventor: Joel D. Colliau