Latching devices

Details Latching devices Latching devices

1987-03-17

1988-02-23

Leppink, James A.

Wells

Means for guiding insertable element laterally of well axis

166217, 166237, E21B 2303

Patent

active

047264217

ABSTRACT:
There is disclosed a device for latching a well tool within the seal bore of a pocket to one side of a bore through a mandrel connectable in the well string. The mandrel has a recess above the seal bore to receive latching dogs on the lower end of collet fingers carried by the device and an upwardly facing shoulder above the recess which engages the latching dogs to cause them to be flexed inwardly as they are lowered into positions opposite the recess.

REFERENCES:
patent: 2392244 (1946-01-01), Hooser
patent: 2962097 (1960-11-01), Dollison
patent: 3074485 (1963-01-01), McGowen, Jr.
patent: 3086593 (1963-04-01), Chitwood
patent: 3102594 (1963-09-01), Crowe
patent: 3136366 (1964-06-01), Brown et al.
patent: 3638988 (1972-02-01), Brown
patent: 3741601 (1973-06-01), Dudley

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