Mandrel locking sleeve

Details Mandrel locking sleeve Mandrel locking sleeve

1975-05-22

1976-08-24

Purser, Ernest R.

Wells

Packers or plugs

With expanding anchor

166216, A21C 304

Patent

active

039761347

ABSTRACT:
One or more unitary, internally toothed sleeves are located in a packer mechanism in partially slidable relationship on the packer mandrel such that actuation of the packer serves to rotate the locking sleeves on the mandrel, causing the internally toothed sections to engage the mandrel and maintain the packer in the set position.

REFERENCES:
patent: 1551214 (1925-08-01), Perrel
patent: 2363228 (1944-11-01), Cade
patent: 3548936 (1970-12-01), Kilgore et al.
patent: 3695352 (1972-10-01), McGill
patent: 3714984 (1973-02-01), Read
patent: 3804166 (1974-04-01), Fisher et al.
patent: 3818987 (1974-06-01), Ellis
patent: 3851707 (1974-12-01), Jett

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