Hanger apparatus for suspending pipes

Details Hanger apparatus for suspending pipes Hanger apparatus for suspending pipes

1978-06-16

1979-09-18

Leppink, James A.

Wells

Expansible anchor or casing

Liner hanger

166214, 285141, E21B 4310

Patent

active

041679709

ABSTRACT:
An improved hanger apparatus for suspending an inner pipe from an outer pipe or other annular member. The invention applies to hanger apparatus of the type comprising a hanger mandrel carried by an inner pipe, an outer hanger body, which can be carried by an outer pipe, and a resilient locking ring carried by the mandrel for connecting the mandrel to the hanger body to suspend the inner pipe. Hanger apparatus according to the invention have both special catch surfaces, coacting between the mandrel and outer hanger body to assure that full engagement occurs as a result of lowering the mandrel into the hanger body, and special load bearing surfaces for transferring the load to the outer hanger body when engagement has been achieved.

REFERENCES:
patent: 3216503 (1965-11-01), Fisher, Jr. et al.
patent: 3227218 (1966-01-01), Fisher, Jr. et al.
patent: 3378077 (1968-04-01), Elliston
patent: 3420308 (1969-01-01), Putch
patent: 3736984 (1973-06-01), Garrett
patent: 3893717 (1975-07-01), Nelson
patent: 3946807 (1976-03-01), Amancharla et al.

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