Apparatus and system for detecting under-filled cushions
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United States of America Patent
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Jun 19, 2007
Grant Date -
Mar 2, 2006
app pub date -
Sep 2, 2004
filing date -
Sep 2, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is an under-filled cushion detector that is capable of conveying a string of packaging cushions and detecting whether the string of packaging cushions may be under-filled. The detector includes an upper driven belt that is movably suspended above a lower belt. The belts cooperate together to define a longitudinal cushion pathway between the belts. The distance between the upper and lower belts may vary depending upon the thickness of the string of packaging cushions. If a string of under-filled cushions travels between the upper and lower belts, the upper belt can move downwardly in the direction of the lower belt. A switch stops the upper and lower belts if the height of the cushion pathway decreases below a predetermined threshold. The detector can be used in a system for manufacturing and transporting packaging cushions to a desired location.
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