Rock ditcher

Details Rock ditcher Rock ditcher

1984-06-18

1986-12-02

Novosad, Stephen J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Floor-working

299 76, 299 84, 172 93, 172100, 172294, F02F 308, F02F 506

Patent

active

046260323

ABSTRACT:
Apparatus for excavating hard soils comprising support means, an endless chain capable of movement relative to said support means, drive means for moving said endless chain, means integral with said endless chain operable to contact said hard soils, and means for concentrating the force exerted by said soil contacting means against said hard soils at a specific point along said endless chain while said endless chain is being moved relative to said support means.

REFERENCES:
patent: 2684542 (1954-07-01), Larson et al.
patent: 2749105 (1956-06-01), Sibley
patent: 2859544 (1958-11-01), Evans
patent: 2890033 (1959-06-01), Silks
patent: 2995843 (1961-10-01), Hutchison
patent: 3028693 (1962-04-01), Malzahn
patent: 3103754 (1963-09-01), Wieger
patent: 3388487 (1968-06-01), Peck
patent: 3603010 (1971-09-01), Polinek
patent: 3964331 (1976-06-01), Oldfield
patent: 4038763 (1977-08-01), Hutchison
patent: 4217001 (1980-08-01), Youngers et al.

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