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. 23, 2018
Filed:
Sep. 19, 2014
Applicant:
Atomic Energy of Canada Limited, Mississauga, CA;
Inventors:
Assignee:
ATOMIC ENERGY OF CANADA LIMITED, Mississauga, Ontario, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 3/42 (2006.01); G01N 3/40 (2006.01); G01N 33/44 (2006.01);
U.S. Cl.
CPC ...
G01N 3/42 (2013.01); G01N 3/405 (2013.01); G01N 33/445 (2013.01); G01N 2203/0222 (2013.01); G01N 2203/0286 (2013.01);
Abstract
The present invention provides a polymer indentation method and tester that includes measuring the time taken by a polymeric material to recover a set portion of an initial deformation and use this duration as a material degradation indicator. The recovery time was found to be more sensitive to cable degradation than the specific compressive stillness (or indenter modulus) measured during the indentation phase, and this high sensitivity was achieved for both thermally aged and irradiated polymer.