Material or article handling – Elevator or hoist and loading or unloading means therefor – Return – buffer – or counterweight feature
Patent
1978-06-08
1980-09-09
Sheridan, Robert G.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Return, buffer, or counterweight feature
180285, 180290, 187 9R, 414674, B66F 922
Patent
active
042215307
ABSTRACT:
A force-moment compensating apparatus, particularly adapted for use with load handling apparatus, including stabilizing means, sensing means for sensing a change in value of a force-moment acting on the apparatus, and actuator means responsive to the sensing means for restoring the force-moments acting on the apparatus to a stable condition.
REFERENCES:
patent: 2759563 (1956-08-01), Marnon et al.
patent: 2935161 (1960-05-01), Comfort
patent: 3734326 (1973-05-01), Esser
patent: 3993166 (1976-11-01), Senour
patent: 4068773 (1978-01-01), Downing
Williams, IV James M.
Williams, V James M.
Lackey Harrington A.
Sheridan Robert G.
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