The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2012
Filed:
Nov. 12, 2008
Applicants:
Andre Ullrich, Leinfelden-Echterdingen, DE;
Richard Engel, Sebnitz, DE;
Inventors:
Andre Ullrich, Leinfelden-Echterdingen, DE;
Richard Engel, Sebnitz, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25D 9/00 (2006.01); B25D 11/00 (2006.01); B25D 16/00 (2006.01); B25D 13/00 (2006.01); B23B 45/16 (2006.01); E21B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a handheld machine tool, in particular a hammer drill and/or chipping hammer. The tool has an impacting unit which has at least one impacting pin and a guide unit which is provided for guiding the impacting pin. It is proposed that the guide unit is formed from at least two different materials.