Cold-resistant fuel-line hose
US5390705A · kind A · utility
11Cited by
17References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1993 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Jan 27, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A layered tubing for use in a motor vehicle has a thick tubular inner layer formed of a synthetic resin having a predetermined hardness and a predetermined thickness and a thin tubular outer relax layer bonded externally to and surrounding the inner layer. This outer layer is formed of a synthetic resin having a hardness equal to at most 0.8 of the hardness of the inner layer and a thickness equal to at most 0.5 of the thickness of the inner layer. The inner layer can be one layer or can be formed of a plurality of coextruded and coaxial sublayers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.