Patent
1975-06-23
1976-10-26
Sheridan, Robert G.
91411R, E02F 387
Patent
active
039879208
ABSTRACT:
A self-leveling system for a material handling unit on a pivoted boom is disclosed herein. The self-leveling system consists of a separate valve which is automatically controlled by the actuation of a material handling valve to produce the leveling function in either the raising or lowering condition for the boom.
REFERENCES:
patent: 2988891 (1961-06-01), Hemings
patent: 3175580 (1965-03-01), Krehbiel
patent: 3563137 (1971-02-01), Graber
Brown Marvin L.
Parquet Donald J.
Pedersen Carl O.
J. I. Case Company
Sheridan Robert G.
Weaver Ross
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