Sealed edge detectable tape
US4781958A · kind A · utility
22Cited by
14References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1987 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Sep 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31692
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A detectable tape including a ductile metal foil layer which is enclosed in a sheath of thermoplastic coating which provides a sealed edge along the length of the tape. The thermoplastic coating sheath protects the foil from corrosion when the detectable tape is placed underground above a nonmetallic body such as plastic pipe. The sealed edge detectable tape can also include a reinforcement layer which provides additional tensile strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.