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. 06, 2011
Filed:
Oct. 24, 2007
Applicants:
Gerhard Meixner, Filderstadt, DE;
Otto Baumann, Leinfelden-Echterdingen, DE;
Jan Koalick, Leinfelden, DE;
Inventors:
Gerhard Meixner, Filderstadt, DE;
Otto Baumann, Leinfelden-Echterdingen, DE;
Jan Koalick, Leinfelden, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 45/16 (2006.01); B25D 9/00 (2006.01); B25D 11/00 (2006.01); B25D 13/00 (2006.01); B25D 16/00 (2006.01); E21B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention is a striking mechanism for a handheld power tools in particular electric hammer. A piston is arranged in an axially bidirectionally movable manner in a guide tube. A striker is provided which acts on a striking pin and which is held in a movable manner in the guide tube. A compression space is delimited by the piston and the striker such that an air cushion is enclosed therein. It is proposed that at least one spring element is provided between the striker and the striking pin.