Fire seal
US3934889A · kind A · utility
11Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 11, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Sep 11, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/936
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A Fire seal is formed in three layers, an elastic inner tube which is inflatable, a resilient fire resistant felt surrounding the tube, and a wear resistant rubber impregnated outer layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.