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:
Aug. 30, 1994
Filed:
May. 18, 1992
Applicant:
Inventors:
Corneliu Lungu, Buehlertal, DE;
Hugo Herrmann, Lauf, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ;
U.S. Cl.
CPC ...
310239 ; 310242 ; 310245 ;
Abstract
A small size electric motor has a housing having an opening, a heat conductive bearing shield arranged to close the opening, a commutating device provided with commutator brushes in the housing. The bearing shield has a first guiding wall and at least one second guiding wall arranged at a distance from one another for guiding the commutator brushes. A heat conductive isolating layer is located between the guiding walls and the commutator brushes which are guided on the guiding walls with a small play.