Triple-purpose attachment

Details Triple-purpose attachment Triple-purpose attachment

1988-03-14

1989-07-11

Eickholt, Eugene H.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

37103, 37DIG3, 414912, 414722, E02F 376

Patent

active

048458678

ABSTRACT:
A triple-purpose attachment for articulated back-hoes and the like comprises an earth-working bucket having a clamping/scarifying arm mounted to pivot in an arc about the same axis as the bucket, or about another axis passing through the bucket normal to the longitudinal axis of the dipper stick. The arc is fixed relative to the bucket. The lower end of the arm includes forward and rear teeth, and the arm is pivotably moved by hydraulic motive means to be useful by itself or in combination with the bucket in excavation, ripping, lifting, moving and turning objects.

REFERENCES:
patent: 3148787 (1964-09-01), Clark et al.
patent: 3250028 (1966-05-01), Hunger et al.
patent: 3273729 (1966-09-01), Holopainen
patent: 3613923 (1971-10-01), Albright
patent: 3732980 (1973-05-01), Evers et al.
patent: 3854608 (1974-12-01), Arnold
patent: 4327509 (1982-05-01), Bean
patent: 4372063 (1983-02-01), Work
patent: 4375345 (1983-03-01), Hanson
patent: 4403906 (1983-09-01), Holopainen
patent: 4635386 (1987-01-01), Kobayasi

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