Patents by Inventor Oliver Muhr

Oliver Muhr 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 tool device with idle strike cutoff
    Patent number: 6431290
    Abstract: A hammering electric hand tool device with idle strike cutoff for a pneumatic striking mechanism with an axially fixed guide pipe and a hammer member striking in the interior of a rotatable tool holder, wherein the tool holder encloses the guide pipe on the radial outer side at least partially, at least in an axial, partial area, and the tool holder is mounted so as to be movable in an axially limited manner.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: August 13, 2002
    Assignee: Hilti Aktiengesellschaft
    Inventors: Oliver Muhr, Hans-Werner Bongers-Ambrosius
  • Electric hand tool device with idle strike cutoff
    Publication number: 20020050191
    Abstract: A hammering electric hand tool device with idle strike cutoff for a pneumatic striking mechanism with an axially fixed guide pipe and a hammer member striking in the interior of a rotatable tool holder, wherein the tool holder encloses the guide pipe on the radial outer side at least partially, at least in an axial, partial area, and the tool holder is mounted so as to be movable in an axially limited manner.
    Type: Application
    Filed: April 16, 2001
    Publication date: May 2, 2002
    Inventors: Oliver Muhr, Hans-Werner Bongers-Ambrosius