Across the line plugging apparatus and method

Details Across the line plugging apparatus and method Across the line plugging apparatus and method

1976-08-02

1978-07-18

Schwadron, Martin P.

Fluid handling

Processes

Cleaning, repairing, or assembling

29157T, 137318, 137319, 138 89, 228161, F16L 5510, F16K 4300

Patent

active

041009290

ABSTRACT:
A new and improved method and apparatus for plugging a branch line connection from a main line connection includes welding a suitable flange connection to the main line across from said branch line, tapping the walls of the main line from the flange connection to the branch line and positioning a plugging member adjacent and in said branch line wherein the plugging member seals against the inner surface of the main line which is normally smooth and also enables the pressure in the main line to further enhance the seal by enabling the pressure from the main line to exert pressure on the rear of the plug to seal against such main line immediately adjacent and around the periphery of the opening of the branch line.

REFERENCES:
patent: 2099841 (1937-11-01), Connell
patent: 3036594 (1962-05-01), Salisbury
patent: 3291156 (1966-12-01), Corsano
patent: 3511254 (1970-05-01), Dyer et al.
patent: 3513875 (1970-05-01), Nelson
patent: 3586056 (1971-06-01), Kipp et al.
patent: 3799182 (1974-03-01), Long
patent: 3948282 (1976-04-01), Yano

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