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:
Nov. 17, 2016
Applicant:
Shawcor Ltd., Toronto, CA;
Inventors:
Assignee:
Shawcor Ltd., Toronto, Ontario, CA;
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/14 (2006.01); F16L 58/18 (2006.01); F16L 59/20 (2006.01); B29C 45/16 (2006.01); B29C 65/00 (2006.01); B29K 23/00 (2006.01); B29K 63/00 (2006.01); B29K 75/00 (2006.01); B29K 105/20 (2006.01); B29L 23/00 (2006.01);
U.S. Cl.
CPC ...
B29C 45/14614 (2013.01); B29C 45/14491 (2013.01); B29C 45/1671 (2013.01); B29C 66/5221 (2013.01); F16L 58/181 (2013.01); F16L 59/20 (2013.01); B29C 45/14598 (2013.01); B29K 2023/12 (2013.01); B29K 2063/00 (2013.01); B29K 2075/00 (2013.01); B29K 2105/20 (2013.01); B29K 2995/0015 (2013.01); B29K 2995/0078 (2013.01); B29L 2023/22 (2013.01);
Abstract
A method of coating a field joint and a coated field joint formed thereby. The field joint coating includes a first thermal insulation material injection molded over the uncoated field joint to form a first layer, and a second thermal insulation material injection molded over the first layer to form a second layer. The second material has a greater flexibility than the first material and a lower maximum operating temperature than the first material. In certain embodiments, the second material forms a significant part of the volume of the field joint coating.