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:
Aug. 16, 2016
Filed:
Sep. 29, 2014
Applicant:
Dmar Engineering, Inc., Houston, TX (US);
Inventors:
Yongtian Kang, Qingdao, CN;
Dagang Zhang, Houston, TX (US);
Zhiming Huang, Missouri City, TX (US);
Quan Yuan, Qingdao, CN;
Assignee:
DMAR Engineering, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 3/08 (2006.01); G01N 3/20 (2006.01); G01N 3/22 (2006.01); G01N 3/32 (2006.01);
U.S. Cl.
CPC ...
G01N 3/20 (2013.01); G01N 3/08 (2013.01); G01N 3/22 (2013.01); G01N 3/32 (2013.01); G01N 2203/0021 (2013.01); G01N 2203/0023 (2013.01); G01N 2203/0037 (2013.01); G01N 2203/0073 (2013.01); G01N 2203/0274 (2013.01);
Abstract
Apparatus and methods related to fatigue testing are described. For example, some embodiments may contain a terminal fixer, a terminal support, a bending machine, and a stress-strain collector, and may be used for testing fatigue properties of offshore pipes, risers and their connectors. Some embodiments may be used to apply extruding, twisting and high frequency bending to the testing sample during one testing period, so that the various fatigue properties of the testing sample can be obtained.