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:
Jun. 19, 1990
Filed:
Sep. 29, 1988
Vladimir Maxa, Wuerzburg, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
An optical pulse generator for an electric-motor drive arrangement, especially for a motor vehicle window lifting drive with an electric motor and a flanged transmission is to be provided in a simple manner which improves the operating reliability of the drive arrangement while the overall size is reduced. To this end it is proposed, according to the invention, to arrange a code wheel (1) within the electric-motor drive arrangement on the rotor shift (4) of the electric motor or on a transmission output gear (5) within the flanged transmission. A protective encapsulation is achieved while the code wheel (1) is arranged on the rotor shaft (4) by a protective housing (3) supported on the code wheel (1). Alternatively, the code wheel is arranged on the transmission output gear (5), by a protective housing formed by transmission housing wall (201), the transmission output gear (5) itself. Sealing rings (8) arranged adjacent to the code wheel.