SEALING FILMS TO TRAYS
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United States of America Patent
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-
N/A
Issued Date -
Jul 12, 2001
app pub date -
Oct 23, 1998
filing date -
Oct 23, 1998
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A film may be sealed to a tray by flattening an upper edge of the tray to produce a planar sealing surface. A film may then be sealed to the planar sealing surface. The flattening may be achieved using a high temperature heat sealing apparatus and may cause closure of the cells of open-cell foam trays. In addition, the heat used in the flattening step may be useful in facilitating the heat sealing of the film to the tray if done in sufficiently quick succession.
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