Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent
1992-03-09
1993-08-10
Neuder, William P.
Boring or penetrating the earth
Bit or bit element
Rolling cutter bit or rolling cutter bit element
175384, 299 80, E21B 924
Patent
active
052340643
ABSTRACT:
A roller cutter assembly comprising a cutter hub adapted for rotation with respect to a rock face and having a peripheral surface with an axially extending width. The first cutter ring is located on the cutter hub. A second cutter ring is also located on the cutter hub. Both the first cutter ring and the second cutter ring are adjustable between at least first locations and second locations along the width of the peripheral surface of the cutter hub such that reorientation of at least one of the first cutter ring and the second cutter ring on the cutter hub alters the axial spacing between the first cutter ring and the second cutter ring, resulting in alteration of the spacing of the cutters located thereon. Reorientation of the first cutter ring and/or the second cutter ring is accomplished by reversing the orientation of the one cutter ring with respect to the other, varying the number of spacers which locate and brace the first cutter ring and second cutter ring on the cutter hub, and/or varying the relative widths of the spacers.
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Neuder William P.
The Robbins Company
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