Material or article handling – Elevator or hoist and loading or unloading means therefor – With external cooperating movable feeding or discharging means
Patent
1991-09-11
1994-05-10
Huppert, Michael S.
Material or article handling
Elevator or hoist and loading or unloading means therefor
With external cooperating movable feeding or discharging means
74 892, B60K 104
Patent
active
053103050
ABSTRACT:
Apparatus for loading and unloading objects including a base (10, 30); a gantry (20, 40) mounted on the base (10,30) and projecting upwardly therefrom; a first carriage (12,32) mounted on the base (10,30); a drive mechanism for moving the first carriage (12,32) back and forth in a straight line on the base (10,30) between a first position and a second position: a second carriage (16,36) mounted on the gantry (20,40); a second drive mechanism for moving the second carriage (16,36) back and forth between a first position that is at least substantially identical to the second position of the first carriage (12,32) and a second position that is at least substantially vertically spaced from the first position of the first carriage (12,32); and a mechanism for interrelating the first drive mechanism and the second drive mechanism such that, when the first carriage (12,32) is in its first position, the second carriage (16,36) is in its first position; as the first carriage (12,32) moves from its first position to its second position, the second carriage (16,36) moves from its first position to its second position; when the first carriage (12,32) is in its second position, the second carriage (16,36) is in its second position; and, as the first carriage (12,32) moves from its second position to its first position, the second carriage (16,36) moves from its second position to its first position.
REFERENCES:
patent: 3047095 (1962-07-01), Bell et al.
patent: 4265582 (1981-05-01), Theobold
patent: 4450400 (1984-05-01), Gwyn
patent: 4966513 (1990-10-01), Motoda
patent: 5020382 (1991-06-01), Lutz
patent: 5160237 (1992-11-01), Lutz
Gordon Stephen T.
Huppert Michael S.
Master Manufacturers, Inc.
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