Hydraulic actuated grab bucket

Details Hydraulic actuated grab bucket Hydraulic actuated grab bucket

1977-08-01

1978-11-07

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hoist-line slings

Latch release

37187, 294 88, B66C 316, E02F 344

Patent

active

041242432

ABSTRACT:
This multi-purpose grab bucket of the type comprising a pair of hydraulically actuated symmetrical pivoting shells or scoops has a main central vertical hydraulic cylinder and piston actuator and lateral oblique hydraulic cylinder and piston actuators, and valves for selectively supplying hydraulic fluid under pressure to the central actuator or the lateral actuators for operating the assembly as a "digging" bucket or as a "rehandling" bucket, or in a third mode intermediate the "digging" and "rehandling" modes.

REFERENCES:
patent: 2890806 (1959-06-01), Pilch
patent: 3023044 (1962-02-01), Drain et al.
patent: 3039812 (1962-06-01), Nimeskern
patent: 3796332 (1974-03-01), Kawamura
patent: 4047313 (1977-09-01), Bricon

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