Rubber seal adaptor

Details Rubber seal adaptor Rubber seal adaptor

1992-04-01

1994-08-23

Dang, Hoang C.

Wells

Packers or plugs

With detachable setting means

166196, 166237, 403105, E21B 33128

Patent

active

053398947

ABSTRACT:
A rubber seal adaptor for a well having a pipe fitting, a compression sleeve about the pipe fitting and rubber seal rings positioned about the pipe fitting so as to be compressed by the compression sleeve. A first circular groove in the bore of the compression sleeve has a conical surface such that there is a shallower portion and a deeper portion. A plurality of circular grooves extend about the periphery of the pipe fitting so as to be adjacent the groove in the compression sleeve. A plurality of steel balls are positioned within the groove in the compression sleeve to interfere with the plurality of grooves for locking the compression sleeve in a compressed condition against the rubber seal rings. The pipe fitting includes threaded ends for receiving a kelly nut and a liner.

REFERENCES:
patent: 2228244 (1941-01-01), Baker
patent: 2365052 (1944-12-01), Chamberlain
patent: 2388056 (1945-10-01), Hendricks
patent: 2770155 (1956-11-01), Morgan
patent: 2878876 (1959-03-01), Long
patent: 3306362 (1967-02-01), Urbanosky

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