Thermal insulation device of a screwed junction
US8061739B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 2008 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Oct 28, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L39/005
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A thermal insulation device of a screwed junction between two sections of pipe comprising an outer pipe surrounding an inner pipe between which thermal insulation material is positioned, the inner pipes being assembled together by the screwed junction, one section delimiting a male portion and the other delimiting a female portion, the portions being fitted together to delimit the screwed junction, wherein the male portion comprises the inner pipe and a tubular part connected thereto, the diameter of the tubular part being less than that of the outer pipe, and wherein the female portion comprises a part of the outer pipe and an intermediate tubular part connecting the inner pipe to the outer pipe, the inner diameter of the intermediate part being greater than the outer diameter of the tubular part of the male portion, the thermally insulating material being inserted between the outer pipe and the intermediate part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.