发明名称 Rotary handle cutout with heated knife
摘要 Continuously produced plastic bags are made with cutouts in the bags to serve as handles for the bags. A rotary wheel set is used to interface with a circumferential knife blade to cut the holes in the bags. An improved bag tensioning platen and holding apparatus is provided to improve the uniformity of holes being cut in the bags.
申请公布号 US5022298(A) 申请公布日期 1991.06.11
申请号 US19880250017 申请日期 1988.09.27
申请人 FMC CORPORATION 发明人 LOTTO, RONALD L.
分类号 B26D7/02;B26D7/10;B26F1/38;B26F3/08;B31B19/14 主分类号 B26D7/02
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