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:
Dec. 09, 2014

Filed:

Nov. 27, 2008
Applicants:

Willy Braun, Neustetten, DE;

Juergen Lennartz, Ostfildern, DE;

Inventors:

Willy Braun, Neustetten, DE;

Juergen Lennartz, Ostfildern, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q 5/00 (2006.01); B25D 17/08 (2006.01); B25D 16/00 (2006.01);
U.S. Cl.
CPC ...
B25D 16/003 (2013.01); B25D 17/088 (2013.01); B25D 2216/0015 (2013.01); B25D 2216/0023 (2013.01); B25D 2250/205 (2013.01); B25D 2250/165 (2013.01); B25D 2250/221 (2013.01); B25D 2250/101 (2013.01);
Abstract

The invention relates to a method for operating power tool, particularly an electrically driven hand power tool, having at least one tool drive shaft for directly or indirectly rotationally driving a tool insert. The tool insert is received in a tool holder releasably connected to the tool drive shaft. The tool drive shaft can be coupled to a drive device via a clutch device. The clutch device is provided with at least two different limit torques, which are selectable by an operator. When the tool insert and/or the tool holder is changed out, the clutch device is reset to a lower limit torque of the at least two different limit torques, particularly the lowest possible limit torque.


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