B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/1057
B29C 65/00 (2006.01) B29D 99/00 (2010.01) B26F 1/24 (2006.01) B29C 69/00 (2006.01) B29D 22/00 (2006.01) B65D 81/26 (2006.01)
Patent
CA 1190016
ABSTRACT OF THE INVENTION The present invention is directed to a method and apparatus for manufacturing a tray having an integral purge juice trap. A particularly important step in the method is adhering a border area of a perforated thermoplastic sheet to a raised shoulder area of a tray. Preferably, this step is accomplished simultaneously with the step of perforating the thermoplastic sheet. A preferred method for adhering the border area to the shoulder area is heat sealing.
432984
Hessen Thomas A.
Laiewski Stanislaus J.
Cryovac Inc.
Smart & Biggar
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