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:
Dec. 19, 2017
Filed:
Apr. 21, 2016
Applicant:
Diamond Offshore Drilling, Inc., Houston, TX (US);
Inventors:
Donald Paul Howard, Houston, TX (US);
Alan Hugh Summers, Houston, TX (US);
Harris Allen Reynolds, Jr., Houston, TX (US);
Kati Rachelle Andrus, Houston, TX (US);
Assignee:
DIAMOND OFFSHORE COMPANY, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 17/01 (2006.01); F16F 15/00 (2006.01); B29C 39/02 (2006.01); B29C 65/00 (2006.01); F16L 1/24 (2006.01); B63B 21/66 (2006.01); B63B 39/00 (2006.01); B05D 5/08 (2006.01); B29C 37/00 (2006.01); B29K 105/04 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
E21B 17/012 (2013.01); B29C 39/026 (2013.01); B29C 66/5324 (2013.01); F16F 15/00 (2013.01); F16L 1/24 (2013.01); B05D 5/08 (2013.01); B29C 37/0025 (2013.01); B29K 2105/04 (2013.01); B29L 2031/706 (2013.01); B63B 21/663 (2013.01); B63B 39/005 (2013.01); B63B 2207/00 (2013.01);
Abstract
A method of manufacturing marine riser buoyancy elements includes providing a master mold and mold inserts such that a range of buoyancy elements may be manufactured from one master mold and providing the mold inserts such that an annular space between the riser main conduit and the buoyancy elements, or a groove width between the buoyancy elements may be varied during manufacture.