Material or article handling – Vertically swinging load support – Shovel or fork type
Patent
1981-07-23
1983-03-01
Spar, Robert J.
Material or article handling
Vertically swinging load support
Shovel or fork type
371175, 37DIG3, 414729, B66F 900
Patent
active
043753450
ABSTRACT:
An improved clamping arm assembly for a backhoe or similar excavator includes an arm link adapted to be fixedly mounted beneath the lower surface of the dipper arm of the excavator. A clamping arm is pivotally connected with the arm link, and is movable into and out of engagement with the bucket of the excavator by a fluid actuator in order to provide a claw-like working action. The clamping arm assembly includes a pair of mounting plates respectively disposed on opposite sides of the dipper arm which are adapted to engage support pins on the arm, and a lock bolt arrangement for detachably fixing the assembly to the dipper arm of the excavator.
REFERENCES:
patent: 3273729 (1966-09-01), Holopainen
patent: 3807589 (1974-04-01), Shovick
patent: 4327509 (1982-05-01), Bean
J. I. Case Company
Spar Robert J.
Underwood Donald W.
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