Mining cutter bit assembly

Details Mining cutter bit assembly Mining cutter bit assembly

1975-04-07

1976-11-16

Purser, Ernest R.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

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

299 93, 403362, E21C 1300

Patent

active

039920615

ABSTRACT:
A cutter bit assembly for use on, for example, a mining machine and having improved structure to ensure proper locking of a cutter bit in a cutter bit holder and to ensure proper seating of the bit holder in the supporting block therefor. The bearing surfaces between the bit holder and the block are formed so as to ensure full contact between the upper body portion of the bit holder and the block when a shank portion of the holder is secured within the block. The bearing surfaces on the body portion of the holder are angled so as to further ensure proper seating thereof.

REFERENCES:
patent: 1677950 (1928-07-01), Bowman
patent: 1958817 (1934-05-01), Gase
patent: 2217348 (1940-10-01), Bowman
patent: 2415107 (1947-02-01), Morrow
patent: 2996291 (1961-08-01), Krekeler
patent: 3093365 (1963-06-01), Krekeler
patent: 3268260 (1966-08-01), Snipe
patent: 3498677 (1970-03-01), Morrow
patent: 3749449 (1973-07-01), Krekeler

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