Plastic socket pipe part and method of manufacturing same
US4369159A · kind A · utility
27Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1981 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Mar 3, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/218
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A thermoplastic socket pipe part with a sealing member comprising a sealing head and sealing sleeve, the sealing head being retained by means of a retaining ring, which retaining ring is formed by bending back the end part of an extruded plastic tube provided with three widenings with decreasing inner diameter as seen from the free end of the plastic tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.