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.

Date of Patent:
Mar. 18, 2014

Filed:

Sep. 03, 2008
Applicants:

Otto Baumann, Leinfelden-Echterdingen, DE;

Christian Wiedemann, Tiefenbronn, DE;

Hardy Schmid, Stuttgart, DE;

Holger Frank, Pfullingen, DE;

Frank Mueller, Deckenpfronn, DE;

Roger Hahn, Neuhausen, DE;

Inventors:

Otto Baumann, Leinfelden-Echterdingen, DE;

Christian Wiedemann, Tiefenbronn, DE;

Hardy Schmid, Stuttgart, DE;

Holger Frank, Pfullingen, DE;

Frank Mueller, Deckenpfronn, DE;

Roger Hahn, Neuhausen, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25F 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention relates to a hand-held machine tool, particularly to a drill hammer and/or chisel hammer, having a hand-held machine tool housing and a transmission chamber with at least one transmission element arranged inside the hand-held machine tool housing. According to the invention, the hand-held machine tool includes a pressure equalization unit, provided for equalizing pressure in the transmission housing and serving at least partially for supporting the transmission element.


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