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. 18, 2016
Filed:
Jul. 23, 2014
Applicant:
Spencer Composites Corporation, Sacramento, CA (US);
Inventors:
Brian Spencer, Sacramento, CA (US);
Richard Grover, Sacramento, CA (US);
Assignee:
Spencer Composites Corporation, Sacramento, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/12 (2006.01); F16L 33/01 (2006.01); E21B 17/08 (2006.01); F16L 11/08 (2006.01);
U.S. Cl.
CPC ...
F16L 33/01 (2013.01); E21B 17/085 (2013.01); F16L 11/08 (2013.01); Y10T 29/49826 (2015.01);
Abstract
The invention relates to improved metal/composite interfaces, particularly for risers used in offshore oil and gas production to connect a subsea oil well to a surface drilling/production facility. The invention provides a composite hoop structure configured to a bearing surface of a metal groove of metal liner over which axial fibers are laid. The composite hoop structure provides for improved transition of axial, torsional and compressive forces between composite fibers and metal surfaces of the metal liner.