Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1983-08-04
1984-11-13
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 30, 2771162, 166118, 166134, F16J 1506
Patent
active
044820860
ABSTRACT:
Improved packer assembly for sealing a well screen to a casing avoids contamination problems of expandable lead packers and the abrasion of self-sealing packers which can be rendered ineffective before they reach their intended depth. A pair of annular end members, adapted to be threaded to the well screen and to the drill stem, are joined by a compressible, tubular metal portion. When the well screen is at its intended depth, a swedge dropped against the upper end member of the packer assembly will compress the ends of the tubular metal portion toward each other while the intermediate portion expands into sealing relation with the casing. The seal can be enhanced by applying rings or layers of elastomeric material to the tubular metal portion.
REFERENCES:
patent: 276116 (1883-04-01), Williamson
patent: 1649846 (1927-11-01), Neelands
patent: 1896482 (1933-02-01), Crowell
patent: 1925015 (1933-08-01), Wells
patent: 1949498 (1934-03-01), Stone et al.
patent: 2026883 (1936-01-01), Gillespie
patent: 2136597 (1938-11-01), Spang
patent: 2448205 (1948-08-01), Ashton
patent: 2830540 (1958-04-01), Vincent
patent: 2988148 (1961-06-01), Conrad et al.
Bearl Leslie K.
Wagner Walter R.
Clark Barry L.
Hoatson Jr. James R.
Page II William H.
UOP Inc.
Ward Robert S.
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