Sleeve joint and method of producing such a sleeve joint
US4807910A · kind A · utility
6Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Jun 1, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C66/8221
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A sleeve joint for plastic-sheathed insulated pipes, comprising an oversized joint sleeve of plastic material overlapping the ends of the sheaths of connected pipes with a gap provided between the sleeve and said ends. Spacer means are located in the gap at either end. A circumferential groove is provided in the respective sheath outside of the gap. A fillet weld of a plastic material fills up the groove and the gap opening, and covers the sleeve end face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.