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:
Jan. 12, 1993
Filed:
Sep. 30, 1991
Boris Dinzburg, Niles, IL (US);
Chicago Rawhide Manufacturing Company, Elgin, IL (US);
Abstract
A test fixture apparatus for measuring the bending stiffness of specimens of flexible materials such as elastomers and like polymers. The preferred form includes two elements, an anvil member and a yoke member. The yoke includes a crosspiece and two pairs of depending legs forming parallel, spaced apart, inverted 'V's. Rollers extend between points on the lower parts of the legs to support the test specimens. The anvil member includes a crosspiece and a single pair of arms positioning a roller for applying a downward load to the center of the specimen held on the yoke rollers. The rollers allow the surface-soft specimens to slide over rather than dig into their supports, and this provides more accurate, repeatable readings of the bending forces applied to the specimens.