Glass fiber reinforced thermosetting resin pipe wall construction
US4165765A · kind A · utility
8Cited by
12References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1978 |
| Grant date | Aug 28, 1979 |
| Priority date | — |
| Expiry date | Jan 25, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S138/07
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Various pipe wall constructions comprising thermosetting resin, randomly disposed chopped glass fibers, sand, circumferentially extending continuous glass filaments, and axially extending glass fibers in various percentages in structural wall portions thereof, and having various protective inner liner and outer wall portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.