Apparatus and system for detecting under-filled cushions

Details Apparatus and system for detecting under-filled cushions Apparatus and system for detecting under-filled cushions

2007-06-19

2007-06-19

Huynh, Louis K. (Department: 3721)

Package making

Methods

Gas filling and/or evacuating and closing

C053S494000, C053S498000, C053S504000, C053S507000, C053S069000

Reexamination Certificate

active

10933195

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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