Bottom rotation shaft actuator

Details Bottom rotation shaft actuator Bottom rotation shaft actuator

1997-02-03

1999-07-06

Schoeppel, Roger

Boring or penetrating the earth

Below-ground impact members

Continuous unidirectional rotary motion of one telescoping...

175305, 166178, 166301, E21B 410

Patent

active

059186909

ABSTRACT:
An actuator for effecting bottom hole rotation consisting of an upper wash pipe having a spiral groove mandrel that is in operative association with a ball clutch assembly that is secured to the upper wash pipe. The weight placed on the actuator at the wash pipe connection is effective to drive the mandrel and ball clutch assembly through a given amount of rotation, e.g., five rotations per actuation can be applied to a selected working tool.

REFERENCES:
patent: 2153883 (1939-04-01), Foster
patent: 2326394 (1943-08-01), Richey
patent: 2387682 (1945-10-01), Richey
patent: 3834471 (1974-09-01), Bottoms
patent: 3884051 (1975-05-01), Bottoms
patent: 5584342 (1996-12-01), Swinford

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