Metal insulating part
US11174033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2016 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L59/065
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention concerns an insulating part comprising a sealed casing defining an inner enclosure (7), the part having thermal conductivity of less than 100 mW/m.K, the sealed casing (3) comprising at least one thin metal sheet (30, 31) having a thickness of less than 1 mm and welded peripherally to keep the enclosure under low pressure and/or controlled atmosphere, the weld, which is produced in a chamber under low pressure and/or controlled atmosphere, having a leakage rate of less than 10−6 Pa·m3/s, after a first thermal treatment according to the standard RTCA-DO 160-G, section 5, Cat A (from −55° C. to 400° C.) and a second thermal treatment at −196° C. for 1 hour.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.