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:
Oct. 18, 1988
Filed:
Oct. 02, 1987
Applicant:
Inventor:
Thomas S Fleischman, North Canton, OH (US);
Assignee:
The Firestone Tire & Rubber Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73810 ;
Abstract
A piezoelectric load cycle counter is provided for a multi-stationed strain-life tester. A plurality of test specimens are interposed between a fixed upper bracket and a lower reciprocating bracket and are cyclically flexed therebetween. Piezoelectric crystals maintained in association with the upper bracket with each of the test stations present an output signal on each flexure of the test specimen. These output signals enable a counter which counts the number of cycles of the lower bracket. When a specimen breaks, the output signal of the associated station terminates and the count for that station similarly terminates.