Pipe with an outer foam plastic covering
US4119122A · kind A · utility
10Cited by
9References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1976 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Jun 16, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L59/027
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe having an outer coating of foam plastics, a tape of thermoplastics being wrapped around the foam plastics in an overlapping way, the overlapping parts being heatsealed to each other. At least one reinforcing filament is present on the original contacting surfaces of the overlaps. Preferably one straight and one zig-zag applied filament are present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.