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.:

US 8397831 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 19, 2013

Filed:

Jun. 22, 2009
Applicants:

Mohsein Wan, Bukit Mertajam Penang, MY;

Manfred Lutz, Filderstadt, DE;

Romli Norrofaizi, Ampat Penang, MY;

Inventors:

Mohsein Wan, Bukit Mertajam Penang, MY;

Manfred Lutz, Filderstadt, DE;

Romli Norrofaizi, Ampat Penang, MY;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B 27/00 (2006.01); B25B 15/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A rotary power tool according to the invention includes a manual ratchet mechanism having a driveshaft driven by a motor, an output shaft, a disengageable shaft coupling element for mechanically coupling the driveshaft to the output shaft, and a disengageable ratchet element for blocking rotation of the output shaft unidirectionally. The invention provides that one of the coupling element and the ratchet element is engaged, the other one is disengaged.


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