Adaptor for use with electrofusion fittings
US5277456A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1993 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Mar 16, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C66/742
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An adaptor for use with an electrofusion fitting for enabling a thermoplastic pipe to be coupled to a dissimilar pipe includes a housing sleeve for coupling at one end to the dissimilar pipe with the opposite end being formed on its outer surface with an annular ribbed section covered by a plastic sleeve. An anchoring ring overlies the annular ribbed section of the housing sleeve and is effective to firmly anchor the plastic sleeve to the annular ribbed section of the housing sleeve during electrofusion of the plastic sleeve to one end of an electrofusion fitting, and of the plastic pipe to the opposite end of the electrofusion fitting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.