Earth drills

Details Earth drills Earth drills

1977-06-10

1978-09-26

Staab, Lawrence J.

Tool driving or impacting

Drive gearing advances relative to source or power

175170, 173 26, 173 30, E21B 302

Patent

active

041162846

ABSTRACT:
An earth auger arrangement wherein a power source is mounted on wheels for moving the power source over the earth's surface with means connected to the power source for relaying power to a transmission with which an auger is connected. Handle means are connected to the transmission for manually positioning the auger in relation to the earth's surface to penetrate it at a desired angle with throttle means on the handle means to control the power source. Shaft means are pivotally connected to and extend between the power source and the handle means to reduce counter rotation or counter torque from being exerted on the operator when the auger is rotated to penetrate the earth.

REFERENCES:
patent: 472444 (1892-04-01), Fish
patent: 2217300 (1940-10-01), Templeton
patent: 2576199 (1951-11-01), Vogel
patent: 2696972 (1954-12-01), Howe
patent: 2746720 (1956-05-01), Cannon
patent: 2959398 (1960-11-01), Troche
patent: 3828861 (1974-08-01), Verkuil
patent: 3976147 (1976-08-01), Cunningham
patent: 4057114 (1977-11-01), Anderson

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