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:
Dec. 04, 2012
Filed:
May. 27, 2008
Applicant:
Kim Fuhrer, Lindau, DE;
Inventor:
Kim Fuhrer, Lindau, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P 3/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for determining the rotational speed of a transmission shaft (). The device includes a rotational speed indicator () connected, in a rotationally fixed manner, to the transmission shaft () and at least one rotation speed sensor () including at least one sensor element (). By way of the sensor element (), the speed of the transmission shaft () is detected via the speed indicator (). The speed sensor () is attached to a shifting element () for actuating a sliding sleeve () of a clutch device () that is connected to the transmission shaft () in such a manner that the sliding sleeve () axially movable on but fixed so as not to rotate.