Tray stacking and unstacking corner grippers and handler

Details Tray stacking and unstacking corner grippers and handler Tray stacking and unstacking corner grippers and handler

2006-04-27

2009-06-09

Adams, Gregory W (Department: 3652)

Material or article handling

Apparatus for moving intersupporting articles into, within,...

Stack forming apparatus

C414S790200, C414S795300, C414S331160, C221S297000

Reexamination Certificate

active

07544038

ABSTRACT:
The present invention is directed to a tray handler for stacking and de-stacking ophthalmic prescription trays. The tray handler includes a plurality of spaced clamp assemblies defining a stack area along a conveyor, a lift plate, and first and second actuators. The lift plate is operably disposed within the stack area. The first actuator is operably associated with the clamp assemblies, which are inwardly and outwardly moveable relative the lift plate upon actuation of the first actuator. The second actuator is operably associated with the lift plate, which is vertically moveable within the stack area upon actuation of the second actuator. A controller is in communication with the first and second actuators and controls actuation thereof. A method of handling ophthalmic prescription trays is also disclosed.

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