Patents by Inventor Hans P. Olving

Hans P. Olving 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: 4123188
    Abstract: An automated and adjustable control system for conducting peck drilling operations wherein a drill bit is advanced stepwise in successively increasing penetrations, rapidly retracted after each penetration to remove cuttings, thereafter rapidly advanced toward a work face and then slowed to a drilling advanced rate beginning with the bit a predetermined distance from the work face. Preferably, a pneumatic means rapidly retracts the drill upon completion of each penetration step. A feed rate control unit is partially retracted but limited to a distance less than retraction of the drill. When the drill is rapidly advanced by pneumatic means during each penetration step, the feed rate is decreased by the feed rate control unit to a uniform drilling rate prior to engaging the work face in the work piece.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: October 31, 1978
    Assignee: Gardner-Denver Company
    Inventors: Edwin J. Deremo, Hans P. Olving