Fiber reinforced sandwich tube
US4080999A · kind A · utility
13Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1975 |
| Grant date | Mar 28, 1978 |
| Priority date | — |
| Expiry date | Dec 8, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a sandwich tube comprising an inner and an outer fiber reinforced layer of thermosetting resin and an intermediate layer therebetween consisting of inorganic filler material coated with thermosetting resin and obtained by spraying a finely divided resin into a case of loosely laid inorganic filler material. A non woven is present between the intermediate layer and the outer fiber reinforced layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.