Excavating machine equipped with an attachment for scraper activ

Details Excavating machine equipped with an attachment for scraper activ Excavating machine equipped with an attachment for scraper activ

1977-05-27

1979-02-20

Crowder, Clifford D.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Percussive-type cutter

172705, 173139, 188285, 37 2R, E21C 300

Patent

active

041403487

ABSTRACT:
An excavating machine having a work implement or material excavating tool articulated on the free end of a working arm of the excavator to absorb and dissipate high stress impact loading on the working tool incurred during machine operation.

REFERENCES:
patent: 996997 (1911-07-01), Morris
patent: 2123388 (1938-07-01), Viguerie, Jr.
patent: 2477748 (1949-08-01), Hutchins
patent: 2526500 (1950-10-01), Pilch
patent: 2850956 (1958-09-01), Rogers et al.
patent: 3279105 (1966-10-01), Kolinger et al.
patent: 3605905 (1971-09-01), Bo
patent: 3653131 (1972-04-01), Pilch
patent: 3749446 (1973-07-01), Doty

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