Pipe joints or couplings – Packed – Sleeve
Patent
1979-04-12
1984-06-19
Arola, Dave W.
Pipe joints or couplings
Packed
Sleeve
285381, 2853827, 285342, F16L 1702
Patent
active
044550413
ABSTRACT:
Described herein are heat recoverable composite couplings comprising an outer, tubular heat-shrinkable sleeve and a hollow insert member adapted to receive plural substrates. The insert member has a tapered surface to allow it to accommodate substrates of different sizes. Recovery of the outer member forces the insert member into secure contact with the substrate forming a union between the substrates.
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patent: 3675949 (1972-07-01), Dawson
patent: 3786552 (1974-01-01), Saito
patent: 3805567 (1974-04-01), Sinerco
patent: 3819149 (1974-06-01), Kinder
patent: 3913444 (1975-10-01), Otte
Arola Dave W.
Raychem Corporation
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