Drilling system

Details Drilling system Drilling system

1990-07-31

1993-09-14

Yost, Frank T.

Tool driving or impacting

Advance causing or controlling means

408136, 408712, B23B 4514

Patent

active

052440486

ABSTRACT:
A drilling system for drilling upwardly under automobiles, and for drilling in a direction away from a drill base in other uses, having a base to which a post is attached. A drill carrier slides on the post. A collar is adjustable to anchoring positions along the post by means of a collar setscrew. A hand-lever pivoted to the drill carrier at one end has a mid-lever-fulcrum-axis at a pivotal attachment to the collar whereby a drill on the carrier moves away from the base when the post is vertical beneath an automobile and the other end of the lever is pulled downwardly in the direction of gravity-pull.

REFERENCES:
patent: 2038422 (1936-04-01), Decker
patent: 2477916 (1949-08-01), Wilhide
patent: 2720125 (1955-10-01), Palik
patent: 2810308 (1957-10-01), Bodmer
patent: 2888965 (1959-06-01), Phillips
patent: 3552239 (1971-01-01), Yeaman et al.
patent: 4442905 (1984-04-01), Agoston
patent: 4582456 (1986-04-01), Imai
patent: 4810137 (1989-03-01), Yang

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