Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Tooth mounted on helical head portion or head with helical...
Patent
1986-12-17
1988-07-05
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Tooth mounted on helical head portion or head with helical...
299 91, E21C 2510
Patent
active
047550031
ABSTRACT:
The present invention relates to a cutter bit assembly of the type for use utilized in excavating machines such as in mining, road scarifying, concrete cutting and the like. More specifically, the invention relates to such assembly including a mounting block member having an axial bore extending therethrough adapted to rotatably receive a cutter bit member, and with a polymeric retainer member for preventing axial dislodgment of the cutter bit member during use thereof.
REFERENCES:
patent: 3205759 (1965-09-01), Texier
patent: 3246440 (1966-04-01), Meyer
patent: 3254922 (1966-06-01), Krekeler
patent: 4149753 (1979-04-01), Stoltz et al.
patent: 4462638 (1984-07-01), Den Besten
patent: 4582364 (1986-04-01), de Mey
Morris Robert L.
Pinkerton Cletis P.
Bagnell David J.
Novosad Stephen J.
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