Insulating pipe joint

Details Insulating pipe joint Insulating pipe joint

1985-12-23

1986-09-23

Callaghan, Thomas F.

Pipe joints or couplings

With casing, lining or protector

Insulated

285284, 285911, 174 85, F16L 5914

Patent

active

046131671

ABSTRACT:
An insulating pipe joint is disclosed. The joint comprises a first tubular member, a second tubular member comprising a cylinder having the same inside diameter as that of the first tubular member and an annular metal stopper at one end of said cylinder, and an insulator made of a glass/mica composition and a cured organic, solventless resin. The annular metal stopper has an inside diameter larger than the outside diameter of the first tubular member, and the annular metal stopper nests the first tubular member with a space left between them. The insulator fills the space to hold the first and second tubular members in position and provide air- and water-tightness, and secures the insulation creeping distance between each tubular member.

REFERENCES:
patent: 1767612 (1930-06-01), Pieper
patent: 1786719 (1930-12-01), Dippman et al.
patent: 3539430 (1970-11-01), Duryee
patent: 4411457 (1983-10-01), Inoue et al.
patent: 4445715 (1984-05-01), Inoue et al.

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