Patent ID: 7389626
Filing Date: 2008-06-24
Classification: B29C,B29L,B31D

Abstract:
1. An apparatus for making inflated articles from a film web having two juxtaposed film plies, comprising: a. a first sealing device for producing transverse seals that bond the film plies together; b. an inflation assembly for directing gas between said film plies; c. a sensor to detect whether a predetermined minimum amount of gas has been directed between said film plies, wherein said sensor generates a signal, which varies depending upon whether said predetermined minimum amount of gas has been directed between said film plies, and said inflation assembly is adapted to receive said signal and to direct gas between said film plies at a variable rate of speed, which depends upon said signal received from said sensor; and d. a second sealing device for producing a longitudinal seal between said film plies, said longitudinal seal intersecting said transverse seals, whereby, gas is enclosed between said longitudinal seal, transverse seals, and film plies to thereby form an inflated article.