Pipework

Details Pipework Pipework

1985-03-11

1987-03-24

Husar, Cornelius J.

Pipe joints or couplings

With casing, lining or protector

Insulated

285 55, 285156, 285173, 285377, 376292, 138148, 138149, 29157T, F16Z 5914

Patent

active

046520201

ABSTRACT:
A pipework junction (10, 11) has internal insulation to limit the effect of thermal shock in the form of a two part (14, 15) internal sleeve in which the parts of the sleeve are joined (34) and are, for the most part of their external surfaces, spaced from the junction by a small clearance (20) adequate to ensure that they do not lock to the junction when subjected to thermal shock. Piston rings (62) may be provided to restrain flow along the small clearance and the sleeve may be stabilized in the junction by having an expanded part (63) engaging a recess (64), which also serves to restrain flow along the small clearance.

REFERENCES:
patent: 1215966 (1917-02-01), Murray
patent: 2475635 (1949-07-01), Parsons
patent: 3064707 (1962-11-01), Walts
patent: 3120247 (1964-02-01), Vogler
patent: 3293137 (1966-12-01), Hutchinson et al.
patent: 3525669 (1970-08-01), Germer
patent: 4191246 (1980-03-01), Cassell
patent: 4315644 (1982-02-01), Jansing

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