Fire-resistant pipe coupling
US6457748B1 · kind B1 · utility
7Cited by
28References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1999 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Sep 7, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L21/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe coupling for coupling together two pipes in a fluid-tight manner includes a tubular casing, a tubular sealing gasket located within the casing, and screws for tensioning the casing around the gasket. The casing includes an inner tubular casing and an outer tubular casing, both of metal. A layer of fire-resistant thermally-insulating material is disposed between the inner and outer casings to form a fire shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.