Method of manufacturing a tubular insulating device and corresponding device
US9249920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2008 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Mar 10, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1033
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An insulating material is fed in and shaped by superposing a plurality of N layers Ci (3) of the insulating material. For each layer Ci, a plurality of ni, axial insulating elements Ei precut from the insulating material is formed, a rough form of the tubular insulating device is formed by using an adhesive to assemble the Ni elements Ei of each layer Ci which are juxtaposed along a plurality of joining zones Ji, so that the plurality of joining zones Ji+1 of a layer Ci+1 is offset relative to the plurality of joining zones Ji, of the adjacent layer Ci. Then, by the adhesive is polymerized, and the tubular element rough form is subjected to a heat treatment. The method is economical and makes it possible to obtain a device of high mechanical strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.