Mining tool retainer

Details Mining tool retainer Mining tool retainer

1987-01-16

1988-08-16

Massie, IV, Jerome

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Tooth mounted on helical head portion or head with helical...

299 92, 299 93, E21C 2512

Patent

active

047639563

ABSTRACT:
A retainer for a mining or construction bit which bit is carried in the bore of a mounting block and which has an annular groove forming a neck at the protruding end to receive a retainer. The retainer is a split collar which snaps over the neck of the mounting portion of the bit. The collar, either a molded ring or a spring steel member, has opposed curved axial projections which are dimensioned to fit into and be retained in the bore of the mounting block during the functioning of the bit in operation.

REFERENCES:
patent: 3952433 (1976-04-01), Heinold et al.
patent: 4299424 (1981-11-01), LeBegue et al.
patent: 4582364 (1986-04-01), deMey

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