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:
Apr. 07, 2020
Filed:
Jun. 10, 2016
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Yong K. Wu, Woodbury, MN (US);
Siegmund Papp, Woodbury, MN (US);
Andrew J. Peterson, White Bear Lake, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 70/66 (2006.01); E21B 17/01 (2006.01); B29C 70/44 (2006.01); B29L 31/00 (2006.01); B29K 63/00 (2006.01); B29K 105/04 (2006.01); B29K 105/00 (2006.01); B29K 509/08 (2006.01);
U.S. Cl.
CPC ...
B29C 70/66 (2013.01); B29C 70/44 (2013.01); E21B 17/012 (2013.01); B29K 2063/00 (2013.01); B29K 2105/04 (2013.01); B29K 2105/251 (2013.01); B29K 2509/08 (2013.01); B29L 2031/706 (2013.01);
Abstract
Buoyancy modules () are made from a foam composition that includes a combination of a thermally fusable powder and glass microspheres heated in a manner that provides a hardened syntactic foam having both low density and a high degree of compressive strength. An outer barrier () may enclose the buoyancy module.