Pipe joints or couplings – Pipe to discreet nipple or sleeve to plate – Nipple bolted to plate
Patent
1977-12-30
1980-02-26
Callaghan, Thomas F.
Pipe joints or couplings
Pipe to discreet nipple or sleeve to plate
Nipple bolted to plate
285336, 285348, 285DIG18, F16L 2100
Patent
active
041902700
ABSTRACT:
A hanger for supporting tubing in a well head including a tubular body adapted for connection to a casing head and having a tapered and upwardly facing seat, a tubular hanger positioned within the body and supported on the seat, a downwardly converging annular space between facing portions on the exterior of the hanger and on the interior of the body, a metal seal ring positioned within the converging space, a seal actuator sleeve positioned between the hanger and the body and being movable axially to engage the seal ring, and a wedging screw extending through the body. The wedging screw engages the seal actuator sleeve and wedges the seal actuator sleeve onto the seal whereby the seal is forced into sealing engagement in the converging space between the hanger and the body.
REFERENCES:
patent: 2046579 (1936-07-01), Penick et al.
patent: 3025083 (1962-03-01), Lebeaux
patent: 3166345 (1965-01-01), Pinkard
patent: 4056272 (1977-11-01), Morrill
Callaghan Thomas F.
Cameron Iron Works, Inc.
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