Pipe joint, push ring for pipe joint, method for joining pipes
US11746937B2 · kind B2 · utility
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1References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 19, 2019 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | May 26, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L21/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe joint in which a seal body and a spacer are mounted from the insides of pipes, wherein: a spigot of one pipe is inserted into a socket of the other pipe; and an annular accommodation space is formed between the inner circumference of the socket and the outer circumference of the spigot. Inside the accommodation space are accommodated: a seal body for sealing the gap between the socket and the spigot; a push ring that presses the seal body to keep the seal body in a compressed state; and a spacer that maintains the interval between the push ring and the deep end of the socket in the pipe axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.