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:
May. 25, 1976
Filed:
Jan. 23, 1975
Applicant:
Inventor:
Charles B Hassenboehler, Metairie, LA (US);
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 95 ;
Abstract
This invention relates to an apparatus for stretching a textile material such that the magnitude of the strain at all points is equal in all directions in the plane of the specimen. The embodiment disclosed is an expandable circular pin frame. The pins mounted in puley are uniformly displaced radially outward and impart uniform radial strain without the edge effects associated with similar apparatus employing nonexpanding fastening mechanisms.