Side sealing mechanism for a packaging machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 19, 1983
Grant Date -
N/A
app pub date -
Sep 12, 1980
filing date -
Sep 12, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Heat sealing bars are spaced circumferentially around a rotatable drum and seal together two face-to-face strips of material as the strips are drawn continuously around the drum. The sealing bars are automatically moved radially inwardly and outwardly to change the circumferential distance between the bars and the effective diameter of the drum and thereby keep the bars in register with printed material on the strips.
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Family
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Cited Art Landscape
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