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. 30, 1997
Filed:
Apr. 30, 1996
Applicant:
Inventors:
Wilfried Kabatnik, Leinfelden-Echterdingen, DE;
Rainer Glauning, Stuttgart, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
173217 ; 310 50 ;
Abstract
A hand machine tool with a battery operated drive motor has a plug coupling for electrical contacting of the drive motor with the battery unit mounted on the hand machine tool. The coupling includes a base provided at the machine side and displaceable relative to a machine housing. The base has contact springs which are in contact with contact surfaces provided on a plug housing of the battery unit. A centering element is located between the base and the plug housing and provides a fitting abutment between the contact springs and the contact surfaces.