Device for limiting leakage from well head stuffing box assembly

Details Device for limiting leakage from well head stuffing box assembly Device for limiting leakage from well head stuffing box assembly

1977-03-28

1978-07-11

Leppink, James A.

Wells

Above ground apparatus

With seal for reciprocating member

166 80, E21B 3303

Patent

active

040995623

ABSTRACT:
A device for limiting leakage from a well head stuffing box assembly of the type which includes a vertically reciprocating polished rod. The device provides a chamber surrounding the rod, and a flap valve which is spring loaded to close against a valve seat which surrounds the aperture for the polished rod at the upper end of the chamber. The valve is normally held open by the rod but springs up to close the aperture if the rod breaks and leaves the chamber.

REFERENCES:
patent: 1708261 (1929-04-01), Crowell et al.
patent: 3468374 (1969-09-01), Reeves
patent: 3939910 (1976-02-01), Bruce

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