Cutting bit holder sleeve with retaining flange

Details Cutting bit holder sleeve with retaining flange Cutting bit holder sleeve with retaining flange

1993-01-22

1994-04-19

Bagnell, David 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 92, F21C 3518

Patent

active

053039840

ABSTRACT:
A bit holder for a cutting tool utilizes a non-rotatable sleeve which is slit its entire length axially and is force-fitted into the bore of the bit holder. The sleeve is removable in the field and provides protection for the bit holder. In an alternate embodiment the sleeve is provided with additional retaining means in the form of a circumferential flange which extends beyond the bit holder and contacts the rearmost portion thereof.

REFERENCES:
patent: 3749449 (1973-07-01), Krekler
patent: 3865437 (1975-02-01), Crosby
patent: 4084856 (1978-04-01), Emmerich et al.
patent: 4201421 (1980-05-01), Den Besten et al.
patent: 4217150 (1981-01-01), Wrulich et al.
patent: 4333687 (1982-06-01), Barnstort
patent: 4836614 (1989-06-01), Ojanen
patent: 5058797 (1992-02-01), O'Neill
patent: 5098167 (1992-03-01), Latham

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