Removable pipeline plug

Details Removable pipeline plug Removable pipeline plug

1982-08-30

1984-09-11

Marcus, Stephen

Induced nuclear reactions: processes, systems, and elements

Seal arrangements

For nozzle

138 90, 376250, F16L 5512

Patent

active

044709463

ABSTRACT:
A removable plugging device for a pipeline, and particularly for pressure testing a steam pipeline in a boiling water reactor, wherein an inflatable annular sealing member seals off the pipeline and characterized by radially movable shoes for holding the plug in place, each shoe being pivotally mounted for self-adjusting engagement with even an out-of-round pipeline interior.

REFERENCES:
patent: 1735461 (1929-11-01), Haupt
patent: 3593749 (1971-07-01), Reardon
patent: 3844313 (1974-10-01), Arnold
patent: 3942560 (1976-03-01), Deaver
patent: 3946761 (1976-03-01), Thompson et al.
patent: 3978892 (1976-09-01), Scodino
patent: 4071164 (1978-01-01), Skakunov
patent: 4102474 (1978-07-01), Platts
patent: 4133386 (1979-01-01), Knox
patent: 4258787 (1981-03-01), Amancharia
patent: 4371090 (1983-02-01), Ogarek et al.

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