Rotary cutter assembly

Details Rotary cutter assembly Rotary cutter assembly

1984-02-15

1986-09-09

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175342, 175382, 175412, E21B 1020

Patent

active

046103180

ABSTRACT:
A rotary cutter assembly comprises a drill head having a plurality of receptacles which releasably receive rolling cutter bit assemblies. The bit assemblies are locked in position by a locking sleeve connecting transverse fluid passageways of the drill head and bit assembly. Radially locking means in the form of pins received in complementary slots parallel to the rotational axis of the rotary cutter assembly are also provided.

REFERENCES:
patent: 2065743 (1936-12-01), Reed
patent: 2648526 (1953-08-01), Lanchester
patent: 3139946 (1964-07-01), Bronson
patent: 3463256 (1969-08-01), White
patent: 4158973 (1979-06-01), Schumacher, Jr. et al.
patent: 4335794 (1982-06-01), Goodfellow
patent: 4359113 (1982-11-01), Morris

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