Protective cover for a thermoresponsive tube
US4245674A · kind A · utility
19Cited by
6References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 19, 1979 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Oct 19, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2839
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Thermoshrinkable or thermoexpansive tubes for corrosion prevention or lin of piping are disclosed which have their inner and/or outer walls covered with at least one protective cover to keep them clean from dust, dirt, water or any other foreign matter which might interfere with adhesion to the pipe connection, thus causing corrosion or poor lining.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.