Pipe thermally insulated by an elastomeric material and manufacturing method
US6461554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1999 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Nov 15, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1393
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method intended for heat insulation of a pipe (1), comprising the following successive stages:depositing, on the outer surface of the pipe moving longitudinally, a thickness (3) of an insulating material made of elastomer having an elastic type behaviour, substantially without irreversible plastic deformation,forming at least one circumferential slot (4) in the thickness of the material, substantially orthogonally to the axis (2) of the pipe,coating the insulating material thickness with a sealed sheath.In a variant, the slot is machined in the thickness of the insulant.The invention further relates to a heat-insulated pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.