Method and apparatus for forming fiber reinforced coupling sleeves
US4317693A · kind A · utility
6Cited by
15References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1980 |
| Grant date | Mar 2, 1982 |
| Priority date | — |
| Expiry date | Jun 19, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C70/347
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method is provided for fabricating plain-end pipe couplings. Ribbons of resin-soaked fiber reinforced plastic strands are wrapped about a rotating operably expandable mandrel which has placed therearound a pliable resilient form collar which defines an inner surface of such a coupling. After curing, the wrapped ribbons form a rigid coupling. The mandrel is thereafter collapsed and the coupling removed therefrom. The pliable collar is then separated from the coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.