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:
Feb. 17, 2004
Filed:
Sep. 25, 2001
Wolfram H. Hofschulte, Bonndorf, DE;
Wilfried Synovzik, Huefingen, DE;
Heinrich Dismon, Gangelt, DE;
Andreas Koester, Essen, DE;
Pierburg GmbH, Neuss, DE;
Abstract
A two-stage gear mechanism includes a drive shaft having a first gear stage disposed in a fixed housing and containing planetary wheels. The two-stage gear mechanism also includes a second gear stage, driven by the first gear stage and meshing with a drive shaft. Each of the planetary wheels is formed as a stepped double gear wheel with a first gear wheel that engages the drive shaft, and with a second gear wheel that points toward the direction of the output side. The bearing axles of each of the planetary wheels are disposed spatially fixed within the housing. The second gear wheels of the planetary wheels mesh with a hollow wheel of the second gear stage, the hollow wheel being non-rotationally coupled to the drive shaft.