Kevlar reinforced high pressure hose assembly with grip and environmental barrier
US5361806A · kind A · utility
31Cited by
14References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1992 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Jul 7, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S138/03
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A high pressure (up to 8000 psi service) hose assembly has an inner core made of "Teflon" PTFE, covered by a "Kevlar" aramid reinforcing braid. The PTFE can, but the aramid cannot, withstand the attack of oils and other fluids which may be conveyed through the hose. Therefore, the aramid is covered by PTFE tape and the end of the hose is sealed inside an end fitting. In one embodiment, when the end fitting is swaged or otherwise manipulated to capture the hose, the PTFE inner core extrudes to complete the sealing of the hose end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.