Drive head assembly for drilling machine

Details Drive head assembly for drilling machine Drive head assembly for drilling machine

1993-04-19

1994-12-06

Smith, Scott A.

Tool driving or impacting

Means to drive tool about an axis

Gear drive

173152, 173197, 173213, E21B 302

Patent

active

053701941

ABSTRACT:
The drive head assembly for a drilling machine includes a drive head body having a cavity with an upper portion and a lower portion. A bolt is located in the upper portion of the drive head body cavity, and a collet is located in the lower portion of the drive head body cavity. The collet also includes a cavity. A collet insert is located in the collet cavity, and the collet insert has a drill string opening to fixedly secure a drill string.

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patent: 3800887 (1974-04-01), West
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patent: 4646853 (1987-03-01), Sugden et al.
patent: 4815546 (1989-03-01), Haney et al.
patent: 5012878 (1991-05-01), Anderson
patent: 5119515 (1993-04-01), Sinclair et al.

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