Pipe connector having mechanical and fusion connections
US6375226B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1999 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Aug 23, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pipe connector (1) for a multi-layer composite pipe, the pipe comprising at least one reinforcing layer (13, 14), or layer of high axial strength, at least one inner thermoplastic layer (9, 10) and at least one outer protective layer (15, 16), the connector comprising: (i) a hollow, tubular enclosure (2) adapted to receive the pipe; (ii) fusion means adapted to make a fusion connection with the inner thermoplastic layer of the pipe; (iii) mechanical gripping means (7) adapted to grip the reinforcing layer, or layer of high axial strength of the pipe; and (iv) optionally sealing means (6) adapted to form an environmental seal with the outer protective layer of the pipe, the electrofusion means (8), mechanical gripping means and optional sealing means being disposed within the enclosure and the enclosure being adapted, in use, to apply a constraining force to the mechanical gripping means and the sealing means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.