Auger drilling head

Details Auger drilling head Auger drilling head

1996-01-03

1997-08-19

Neuder, William P.

Boring or penetrating the earth

Bit or bit element

Bit with leading portion forming smaller diameter initial bore

175394, E21B 1026

Patent

active

056578270

ABSTRACT:
The instant invention is an improved cutter head with a salvageable end cap for hollow stem augers. The end cap includes a mechanism for retrieval upon completion of a drilling operation thereby allowing the end cap to include various bit formations so as to assist in the drilling operation. The side wall of the cutter head is modified to include a keyhole slot for maintaining of the end cap in a rigid position to prevent rotational movement.

REFERENCES:
patent: 3094178 (1963-06-01), Newbold
patent: 4046207 (1977-09-01), Taylor
patent: 5158147 (1992-10-01), Pavey et al.
patent: 5427191 (1995-06-01), Rickards

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