Protective cover for a thermoresponsive tube
US4188979A · kind A · utility
11Cited by
4References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 12, 1978 |
| Grant date | Feb 19, 1980 |
| Priority date | — |
| Expiry date | Sep 12, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S174/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Thermoshrinkable or thermoexpansive tubes for corrosion prevention or lining 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.