Expansion seal

Details Expansion seal Expansion seal

1976-12-29

1978-10-24

Ross, Herbert F.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

285348, B65D 5302

Patent

active

041218426

ABSTRACT:
An expansion seal for use with a product pipeline which extends through a larger casing is disclosed. The seal may also be adapted to function as a coupling if a leak occurs in the product pipeline. The device comprises a cap having an axial opening to receive a sleeve which then surrounds the pipeline. The periphery of the cap is adapted to be welded to the casing end. The sleeve defines an internal circumferential recess which contains packing, and the sleeve carries means for compressing the packing into sealing engagement between the pipeline and sleeve. The device may function as a coupling by welding the sleeve to the pipeline.

REFERENCES:
patent: 636083 (1899-10-01), Sweetser
patent: 1805155 (1931-05-01), Weeks
patent: 1946494 (1934-02-01), Harton
patent: 2373280 (1945-04-01), Weber
patent: 2394402 (1946-02-01), Pennella
patent: 2567243 (1951-09-01), Smith
patent: 3393917 (1968-07-01), Kendall
patent: 3398964 (1968-08-01), Trefil
patent: 3997199 (1976-12-01), Arnold

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