04416339 is referenced by 160 patents and cites 4 patents.

The invention disclosed herein provides a mechanism and method for positive drill bit guidance during well drilling operations. The guidance device includes a control arm or paddle which, due to hydraulic pressure, pivots to steer the drill bit towards its target area. As the paddle applies pressure to the wall of the well, the drill bit is then turned from the contacted area of the well wall in the desired direction.

Title
Bit guidance device and method
Application Number
6/341472
Publication Number
4416339
Application Date
January 21, 1982
Publication Date
November 22, 1983
Inventor
Glennwood Singletary
Rte. 6, Box 510, Hickory, 28601
NC, US
Royce E Baker
P.O. Box 1377, Medina, 78055
TX, US
IPC
E21B 7/04
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