Restrainer device for couplings in pipelines
US4609210A · kind A · utility
24Cited by
12References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1985 |
| Grant date | Sep 2, 1986 |
| Priority date | — |
| Expiry date | Jun 20, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L21/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A thrust restrainer for a joint in a pipeline between a plain end of a synthetic plastic pipe and a fitting comprises a pair of semicylindrical moulded half sleeves bolted together through diametrically extending flange portions, the half sleeves having at one end an internal profile complementary to that of the fitting, and at its other end a semicylindrical internal profile matching the external surface of the pipe, the semicylindrical profile including a plurality of parallel serrations which deform the material of the pipe into engagement with the serrations on bolting together of the half sleeves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.