Tray sealing apparatus and method
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United States of America Patent
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Dec 8, 2015
Grant Date -
Oct 3, 2013
app pub date -
Jun 10, 2011
filing date -
Jun 11, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
The application relates to a twin lane tray sealer (100) comprising a pair of conveyors aligned with respective lanes for conveying trays to a heat sealing tool (6) and a pair of transfer mechanisms (66) each for transferring a known plurality of trays together and at a known separation from the respective conveyors to the heat sealing tool wherein the heat sealing tool (6) comprises a plurality of individually operable heaters (61a, 61b), each aligned with a respective tray in the tool in use. Control means is utilized to determine if a tray is missing from a group of trays transferred by the transfer mechanism. If a tray is determined as missing the control means is configured to not activate the heater aligned with the position of the determined missing tray in the tool.
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