Device for sealing the end of sheath pipe

Details Device for sealing the end of sheath pipe Device for sealing the end of sheath pipe

1975-05-19

1976-06-22

Rothberg, Samuel B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277166, 277123, 138108, F16L 2104, F16J 1500

Patent

active

039647544

ABSTRACT:
Device for sealing the end of a sheath pipe that protects a main pipe therein, comprising a pair of sealing rings arranged in face-to-face relation, a pair of flanges oppositely placed at the outside of said sealing rings, all these sealing rings and flanges being tightened with bolts into a unit, each sealing ring being made of flexibly elastic material having a cup shape cross section.

REFERENCES:
patent: 511734 (1893-12-01), Hoffstadt
patent: 2258135 (1941-10-01), Curtis
patent: 2720267 (1955-10-01), Brown
patent: 3270610 (1966-09-01), Knowlton

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