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. 20, 1976
Filed:
Mar. 05, 1974
Applicant:
Inventors:
Heinrich Staudt, Markgroningen, DT;
Georges Nelh, Antony, FR;
Assignee:
Robert Bosch GmbH, Stuttgart, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310168 ; 310 74 ; 310 / ; 310 79 ;
Abstract
A rpm measuring apparatus includes a rpm signal generator having a magnetic circuit composed of a toothed disc, driven by a drive shaft, and a yoke carrying an induction coil. At least one portion of the yoke opposite the toothed disc is also provided with teeth. At least one damper having a rpm-dependent damping characteristic is operatively associated with the drive shaft and disposed on the toothed disc.