Flame resistant hose reinforced with fiberglass cord fabric
US9188257B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2012 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Feb 3, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/125
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flame resistant hose having a nitrile-containing rubber inner tube layer; two reinforcing plies one or more insulating plies of rubberized fiberglass unidirectional cord fabric helically wrapped at a helix angle in the range of 40-60 degrees with respect to the hose longitudinal axis and with the edges of each reinforcing ply overlapping up to about 0.5 inches; an optional rubber cushion or tie layer between the reinforcing plies and the insulating plies; and a polychloroprene rubber outer cover layer. The hose may have one or more helical wires embedded in the hose such as between the two reinforcing layers. The hose successfully passes fire resistance testing when tested according to BS ISO 15540:1999 incorporating amendment number 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.