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:
Apr. 29, 1997
Filed:
Sep. 26, 1994
Applicant:
Inventors:
Michael Daetz, Tiddische, DE;
Roger Pohlmann, Braunschweig, DE;
Assignee:
Deutsche Automobilgesellschaft mbH, Braunschweig, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; B60K / ; G05G / ; H03M / ;
U.S. Cl.
CPC ...
32420714 ; 74335 ; 7447 / ; 123617 ; 3242072 ; 32420721 ; 32420722 ; 32420725 ; 341 15 ;
Abstract
For detecting the angle of rotation of a shaft, in particular of a gear shift shaft in a gear change box for a motor vehicle, a device is proposed in which a carrier arrangement carries a magnet and in its proximity magnetically sensitive sensors. A screening device, rigidly attached to the shaft, moves in the intermediate space between the magnet and the sensors. This screening device is made from a ferromagnetic material such that the magnetic field permeating the sensors is influenced in a manner whereby the sensors generate a signal that unambiguously identifies the position of the shaft.