Rubber hose
US4942906A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1988 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Dec 12, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S138/03
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rubber hose having an outer rubber tube and an inner rubber tube located radially inwardly of the outer rubber tube, the inner rubber tube including an inner layer and an outer layer located between the inner layer and the outer rubber tube, the inner layer being formed of a first polymer blend of acrylic rubber and fluorine-contained resin, the outer layer being formed of a second polymer blend which is different from the first polymer blend and which contains epichlorohydrin rubber. The rubber hose may further have a reinforcing fiber layer disposed between the outer rubber tube and the outer layer of the inner rubber tube such that the inner and outer rubber tubes and the fiber layer constitute an integral tubular body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.