Guided expansion joint

Details Guided expansion joint Guided expansion joint

1978-06-19

1980-09-30

Callaghan, Thomas F.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277207A, 285231, 285302, 308 36, F16L 2702

Patent

active

042251435

ABSTRACT:
A guided expansion joint (1) for fluidically connecting two pipes (2,3) in sealed relationship includes low friction annular guides (11,12) at each end of the expansion joint (1) intermediate the slip (4) and the external sleeve (5). A conventional stuffing box (18) provides the seal between the external sleeve (5) and slip (4) while the annular guides (11,12) protect the slip (4) against wear and scoring in the event that the slip (4) and external sleeve (5) depart from the preferred aligned relationship.

REFERENCES:
patent: 1947072 (1934-02-01), Walton et al.
patent: 2319543 (1943-05-01), Hall
patent: 3026114 (1962-03-01), Andresen et al.
patent: 3082012 (1963-03-01), Rhodes
patent: 3473060 (1969-10-01), Powell
patent: 3876213 (1975-04-01), Miliczky et al.
patent: 3932007 (1976-01-01), Schnell

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