Plug-in coupling
US6773039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2001 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Dec 4, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/138
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A plug-in coupling having a base body (6), a sealing ring (12, 13), a locking ring (40) and an annular body which can be connected to the base body (6). A pipe end (4, 5) can be locked in position by the locking ring (40). The plug-in coupling of the invention enables a connection to be made with at least one pipe end in a simple, functionally reliable manner, in such a way that pipes made of different materials can be used together. The pipe ends (4, 5) can be inserted into an axial annular gap or space (27) between the base body (6) and the annular body (18, 19) in such a way that the sealing ring (12) lies adjacent the interior of the pipe end (4, 5), making a good seal with the pipe end, and also in such a way that the locking ring (40) is located in the annular gap (27). The locking ring (40) is prestressed and adjoins the locking surface (20) of the annular body (18) on one side and the exterior surface of the inserted pipe end (4, 5) on the other side. In addition a locking ring (40) is situated in the annular gap (27) which is prestressed and adjoins the locking surface (20, 21) of the annular body (18, 19) on one side and the exterior surface of the inserted pipe end (4, 5…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.