Patents by Inventor Jacob Edward Feucht

Jacob Edward Feucht 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).

  • Hydraulically powered percussion drill
    Patent number: 3955478
    Abstract: The improved hydraulically actuated percussion drill described hereinafter is designed to reciprocate a striker piston contained therein regardless of whether or not the striker piston engages the drill steel whereby vibration can be imparted to the drill. The drill includes an overtravel portion that cooperates with the striker piston to prevent metal-to-metal contact of the striker piston with the housing during operation. Means are provided to prevent the loss of fluid from the overtravel chamber whereby the striker piston will be returned to the upper end of its stroke and will not become stalled in the overtravel chamber.
    Type: Grant
    Filed: October 29, 1973
    Date of Patent: May 11, 1976
    Assignee: Dresser Industries, Inc.
    Inventor: Jacob Edward Feucht