Bag sealing bar
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United States of America Patent
Stats
-
Sep 6, 1988
Issued Date -
N/A
app pub date -
Jun 12, 1987
filing date -
Jul 17, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sealing bar for heat sealing a length of heat-sealable material, such as tubing, to form packages and the like. The sealing bar has a metal surface adapted for pressure engagement with the heat-sealable material for flattening it and heating it. A slot extends substantially through the bar, the slot being arranged to define the portion of the bar between the slot and the surface as a relatively thin resiliently flexible metal bridge. The bridge is engageable with a portion of the flattened heat-sealable material, such as a portion of tubing having a longitudinal seam or a gusset, thicker than other portions of the heat-sealable material and the bridge is adapted resiliently to yield on engagement with the thicker portion of the material.
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