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. 08, 1981
Filed:
Aug. 16, 1979
Applicant:
Inventor:
Michael J Zinn, Noblesville, IN (US);
Assignee:
Wallace Murray Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G07C / ;
U.S. Cl.
CPC ...
235 / ; 235 / ;
Abstract
A system for the measurement, storing, and subsequent display of the amount of time a rotary element dwells within a predetermined speed range. The system exhibits utility for the measurement of rotary speeds of the driving and of the driven rotary elements of a fluid coupled fan drive of the type commonly employed with diesel engines.