Coupling or transition fitting for the connection of metal or plastic pipes
US7255373B2 · kind B2 · utility
10Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 8, 2003 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Nov 21, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L47/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pipe coupling having a radially deformable housing, wherein a pipe is freely insertable into the housing bore and a nut causes engagement of the grip ring with the pipe. The housing bore including a plurality of outwardly extending projections. The grip ring including a plurality of apertures adapted to receive the housing projections and a plurality of inwardly extending burst hole projections. Tightening of the nut causes the grip ring to be forced both radially and longitudinally, whereby the gripping member substantially restricts longitudinal and rotational movement of the pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.