Patents by Inventor Ralph Beetz

Ralph Beetz 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).

  • Electric hand power tool with switching key
    Patent number: 6794593
    Abstract: An electric hand power tool has an on/off switch, an elongated switching key having a front end and a rear end and actuating the switch, a blocking lever carried by and projecting from the switching key to prevent or to allow turning on of the latter, the switching key being supported turnably, the switching key having a convex curvature starting substantially centrally and extending toward the rear end, the switching key carrying the blocking lever near the rear end, the blocking lever having an upper edge located under a tangent between the convex curvature and the rear end of the switching key.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: September 21, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Ernst Kraenzler, Peter Stierle, Harald Krondorfer, Ralph Dammertz, Ralph Beetz, Mario Pauli
  • Electric hand power tool with switching key
    Publication number: 20030062250
    Abstract: An electric hand power tool has an on/off switch, an elongated switching key having a front end and a rear end and actuating the switch, a projecting blocking lever which manually sets a turning on lock out of operation, the switching key being supported turnably, the switching key having a concave curvature starting substantially centrally and extending toward the rear end, the switching key carrying the blocking lever near the rear end.
    Type: Application
    Filed: September 24, 2002
    Publication date: April 3, 2003
    Inventors: Ernst Kraenzler, Peter Stierle, Harald Krondorfer, Ralph Dammertz, Ralph Beetz, Mario Pauli