Pipe joints or couplings – With casing – lining or protector – Insulated
Patent
1976-09-16
1977-05-24
Callaghan, Thomas F.
Pipe joints or couplings
With casing, lining or protector
Insulated
285 5, 285255, E02B 1300, F16L 3318
Patent
active
040247163
ABSTRACT:
A fastener for joining a connecting tube and an expansible tube telescoped on the end of the connecting tube. The fastener comprises a compressible ring on the end of the connecting tube and a tubular sheath telescoped on the connecting tube, the expansible tube and the ring. The sheath has an inner surface tapered to a circumference less than the normal circumference of the ring.
REFERENCES:
patent: 1064154 (1913-06-01), Miller
patent: 2771320 (1956-11-01), Korwin
patent: 2807505 (1957-09-01), Weitzel
patent: 3167331 (1965-01-01), Marshall
patent: 3436104 (1969-04-01), Jackson et al.
patent: 3560028 (1971-02-01), Ohba
patent: 3830067 (1974-08-01), Osborn et al.
Duggins Ray Brown
Mackauf Peter Garrett
Withington David Little
Callaghan Thomas F.
E. I. DuPont de Nemours and Company
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