Sealing device of packaging device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 11, 1994
Grant Date -
N/A
app pub date -
Dec 30, 1992
filing date -
Jan 28, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The total heating energy to be given to the folded parts of packages (i.e. box-like items) is changed within a short period of time in response to a variation of transferring speed of the box-like items. As the heater moving mechanisms are operated, each of the heater blocks is moved towards or away from the inside parts of each of the package conveying annular belts in synchronization with the transferring speed of the box-like items. The number of heated blocks abutting against the inside parts of each of the annular belts is varied in response to the transferring speed of the box-like items.
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Family
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Cited Art Landscape
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