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:
Sep. 21, 1976
Filed:
Sep. 19, 1975
Applicant:
Inventor:
Gunther Himmler, Darmstadt, DT;
Assignee:
Gebr. Hofmann KG, Darmstadt, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73 11 ;
Abstract
A method and apparatus for testing shock absorbers installed on vehicles whereby one tire of the vehicle is placed on a supporting plate of a test stand which is oscillated. The velocity of the plate during oscillation and the dynamic tire pressure on the supporting plate are detected and corresponding signals produced. The signals are divided, one by the other, after being peak rectified to produce a quotient which represents tire quality signal. Resonance is detected by differentiation of the velocity signal and the tire quality signal transmitted to an indicator only during resonance.