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:
Apr. 13, 2010
Filed:
May. 22, 2006
Applicant:
Jean Secq, Villeneuve d'Asq, FR;
Inventor:
Jean Secq, Villeneuve d'Asq, FR;
Assignee:
Universite des Sciences et Technologies de Lille, Villeneuve d'Asq, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a collar for measuring the lateral deformation of a test piece during uniaxial or triaxial compression tests. According to the invention, the collar includes a metal hoop or a hoop that is made from composite materials, which can clasp the test piece and which is open. The free ends thereof are separated by a distance Δ. The inventive collar also includes a mechanism for directly or indirectly measuring the distance Δ. Between the free ends of the hoop, the mechanism includes at least one strain gauge.