Material or article handling – Apparatus for moving intersupporting articles into – within,... – Stack forming apparatus
Reexamination Certificate
2005-09-13
2005-09-13
Ridley, Richard (Department: 3651)
Material or article handling
Apparatus for moving intersupporting articles into, within,...
Stack forming apparatus
C414S927000
Reexamination Certificate
active
06942444
ABSTRACT:
A stacking machine has a conveyor which supports skids onto which panels sheared from side-by-side strips of metal sheet fall, there to accumulate in stacks. As the stacks form, empty skids are organized on a skid positioning machine located to the side of the stacking machine, and there the spacing between the skids corresponds to the spacing between the skids already on the conveyor. When stacks are completed, the conveyor moves the skids on which they are formed away, and the skid positioning machine deposits the properly spaced empty skids on the conveyor which moves them into the positions where they receive the panels. To this end, the conveyor of the stacking machine may have powered rollers, while the skid positioning machine has a carriage provided with transfer beams configured to fit between the rollers. The carriage moves from a retracted position to the side of the conveyor to an extended position along the rollers of the conveyor with the beams being generally above the rollers and the empty skids being on the beams. Thereupon the stacking machine elevates its conveyor, causing the transfer beams to sink into the spaces between the rollers and the rollers to lift the empty skids from the beams. The rollers then move the empty skids to a position in which they can receive panels.
REFERENCES:
patent: 3621973 (1971-11-01), Carlson et al.
patent: 3887060 (1975-06-01), Kamhues
patent: 4269556 (1981-05-01), Martini
patent: 6435352 (2002-08-01), Schoenbeck et al.
Polster Lieder Woodruff & Lucchesi L.C.
Red Bud Industries, Inc.
Ridley Richard
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