Tray gripper head
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United States of America Patent
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Nov 22, 2016
Grant Date -
Sep 11, 2014
app pub date -
Oct 10, 2012
filing date -
Oct 10, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A method and device for unstacking a stack of trays, each tray having pockets and edge portions. A holder frame above the stack has suction heads which engage the eggs of the uppermost tray of the stack. A carrier unit above the holder frame has oppositely opposed grippers which engage sides of the uppermost tray. The holder frame is connected to the carrier unit by one or more spacer rods which are freely moveable in a channel in the carrier unit so as to permit three degrees of movement relative thereto. The carrier unit may also be moveably suspended in a second carrier unit above it. Support rods may extend downwardly from the carrier unit to engage the tray.
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