Thermoplastic polymeric foam pipe insulation
US9845911B2 · kind B2 · utility
0Cited by
7References
14Claims
0Family size
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Key dates
| Filing date | Feb 17, 2014 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Dec 2, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1376
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An article with at least two extruded thermoplastic polymer foam pieces that fit together to form a length of foam having a generally annular cross section, each piece having a concave surface such that the concave surfaces adjoin to form an internal edge defining a hole within the generally annular cross section; wherein each piece has a density less than 36 kilograms per cubic meter, a product of density times average cell size that is less than 17 millimeters*kilogram per cubic meter, and a thermal conductivity of 35 milliwatts per meter*Kelvin or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.