Tray transportation device
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United States of America Patent
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-
Nov 17, 2009
Grant Date -
Dec 18, 2008
app pub date -
Sep 7, 2007
filing date -
Jun 15, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tray transportation device is disclosed in this invention. The tray transportation device includes a transfer stage, a loading handler, an operation handler and an unload stage. The transfer stage has a buffer area and an operation area. The loading handler is disposed on the buffer area to handle a tray in the buffer area. The operation handler is disposed on the operation area to handle a tray in the operation area. The unload stage is used to carry the tray transferred from the transfer stage. The loading handler and the operation handler move together, when the operation handler transfers the tray from the operation area to the unload stage; the loading handler transfers the tray from the buffer area to the operation area.
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