Mineral cutter tooling system

Details Mineral cutter tooling system Mineral cutter tooling system

1993-11-23

1995-02-28

Britts, Ramon S.

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

299 92, 37458, 285321, 403166, E21B 1000, F16L 3900, F16B 710

Patent

active

053928709

ABSTRACT:
The invention provides a liner sleeve (8) adapted, in use, to be interposed between the external periphery of a round shank (3) of a point attack, mineral cutter pick (1), and the internal periphery of a circular, shank-receiving bore (5) of a pick box (6), the sleeve (8) being constituted by a plurality of individual rings (14A, 14B, 14C) stacked end-to-end in abutting relationship about a common longitudinal axis (15), the rings (14A, 14B, 14C) together having an axial length (17) approximating to the axial length (12) of the bore (5). The invention also includes a pick box (6) provided with such a sleeve (8), and also a combination of pick (1) and pick box (6)

REFERENCES:
patent: 3434745 (1969-03-01), Jackman
patent: 4201421 (1980-05-01), Den Besten et al.
patent: 4333687 (1982-06-01), Barnstorf
patent: 4484783 (1984-11-01), Emmerich
patent: 4678238 (1987-07-01), Emmerich
patent: 4728153 (1988-03-01), Ojanen et al.
patent: 4911504 (1990-03-01), Stiffler et al.
patent: 4944560 (1990-07-01), Osterwise
patent: 5172500 (1992-12-01), Renski et al.
patent: 5303984 (1994-04-01), Ojanen

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