Method of manufacturing a two component sealing gasket for plastic pipe
US11933442B2 · kind B2 · utility
0Cited by
11References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2022 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Apr 4, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/265
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pipe sealing gasket is shown which is designed to be received within a raceway provided within the female, belled end of a section of plastic pipe which is assembled with a mating male pipe end to form a plastic pipe joint. The gasket is a two-component gasket having a softer, elastomeric portion and a harder, plastic ring portion. A splicing technique is used to form the softer, elastomeric portion with the harder, plastic portion being injection molded over the previously formed elastomeric portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.