Hose for refrigerating systems
US4880036A · kind A · utility
44Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 1987 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | Nov 10, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31728
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hose for transporting or otherwise handling refrigerants is disclosed which comprises an inner tube, an outer cover and a reinforcing layer disposed therebetween, the inner tube including a resinous inner wall and a rubbery outer peripheral wall. The inner peripheral wall is formed by a selected class of polymers having specified compositions, whereby the hose is rendered highly resistant to gas permeation and stress cracking and highly flexible and moisture-proofing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.