Pipe joints or couplings – With assembly means or feature – Molded joint facilitator
Patent
1983-06-22
1986-12-16
Callaghan, Thomas F.
Pipe joints or couplings
With assembly means or feature
Molded joint facilitator
285419, 285423, 285 47, 1562739, 156294, 219544, F16L 1302
Patent
active
046292160
ABSTRACT:
For mounting a protective sleeve of plastic over a joint between prefabricated heat insulated pipes, typically subterranean district heating pipes, an axially split plastic sleeve is inserted laterally over the joint so as to bridge the opposed ends of outer protective plastic tubes of the joined pipes. A plastic welding strip provided with a number of embedded parallel heating wires, is placed along and over the relevant annular joint with its opposed ends located spaced from each other adjacent the axial split of the sleeve. The ends of the strip are provided with terminals for parallel connection of the embedded wires, and the wires are electrically heated to weld together the welding strip and the two plastic tube ends. The axial split is then scaled by a similar welding strip.
REFERENCES:
patent: 48517 (1865-07-01), Chambers
patent: 1823974 (1931-09-01), Ferguson
patent: 2739829 (1956-03-01), Pedlow et al.
patent: 2828800 (1958-04-01), Hopkins et al.
patent: 2963394 (1960-12-01), Wilkinson
patent: 3022209 (1962-02-01), Campbell
patent: 3206537 (1965-09-01), Steward
patent: 3229998 (1966-01-01), Pennington
patent: 3744823 (1973-07-01), Muir et al.
patent: 4096017 (1978-06-01), Wyke et al.
patent: 4152577 (1979-05-01), Leavines
Callaghan Thomas F.
I. C. Moller A/S
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