Insulated pipe and method for preparing the same
US8616246B2 · kind B2 · utility
2Cited by
35References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2006 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Dec 30, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.