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. 31, 2013
Filed:
Jun. 06, 2006
John L. Dinon, Lawrence, MA (US);
Hobart C. Kalkstein, Carlisle, MA (US);
Nirmalya Maity, Acton, MA (US);
Ravijit Paintal, Lexington, MA (US);
Aaron H. Johnson, Lexington, MA (US);
Andries Du Plessis, Winchester, MA (US);
John L. Dinon, Lawrence, MA (US);
Hobart C. Kalkstein, Carlisle, MA (US);
Nirmalya Maity, Acton, MA (US);
Ravijit Paintal, Lexington, MA (US);
Aaron H. Johnson, Lexington, MA (US);
Andries Du Plessis, Winchester, MA (US);
Cabot Corporation, Boston, MA (US);
Abstract
The invention provides an insulated pipe-in-pipe assembly comprising (a) at least one inner pipe, (b) an outer pipe disposed around the at least one inner pipe so as to create an annular space between the outer and inner pipes, (c) porous, resilient, compressible material disposed in the annular space, and (d) a remnant of a container that previously was positioned in the annular space and previously held the compressible material in a volume less than the volume of the compressible material in the annular space. The invention also provides a method for making such an insulated pipe-in-pipe assembly.