Drill rig-casing driver assembly

Details Drill rig-casing driver assembly Drill rig-casing driver assembly

1977-09-09

1979-01-23

Hafer, Robert A.

Tool driving or impacting

Drive by means reacting to rotating eccentric mass

173124, 173123, E02D 718

Patent

active

041355857

ABSTRACT:
An improved drill rig having an auger and casing driver assembly, in combination, wherein a weight assembly is provided in combination with the drill rig assembly to be sequentially impacted upon a casing to be driven simultaneously with operation of the auger which is defining the well hole so that a casing is inserted into the well hole at the same time the well hole is being defined.

REFERENCES:
patent: 2776539 (1957-01-01), Pearson
patent: 3216511 (1965-11-01), Ladd et al.
patent: 3448817 (1969-06-01), Morishita et al.
patent: 3743030 (1973-07-01), Gifford
patent: 3785444 (1974-01-01), Gray
patent: 3841418 (1974-10-01), Biersack
patent: 3937286 (1976-02-01), Wagner

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