Apparatus and method for forming inflated articles
AssigneeSealed Air Corporation (US)
InventorsLaurence Sperry, Eirc Kane, Brian Murch, Ross Patterson
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Abstract
An apparatus for making inflated articles from a film web having two juxtaposed film plies. One version of the apparatus generally includes a first rotary sealing device for producing transverse seals that bond the film plies together, an inflation assembly for directing gas between the film plies, and a second rotary sealing device for producing a longitudinal seal between the film plies. The longitudinal seal intersects the transverse seals so that the gas is enclosed between the longitudinal seal, transverse seals, and film plies to thereby form an inflated article.
Claims23
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;
- 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.
A method for making inflated articles from a film web having two juxtaposed film plies, comprising:
- a. producing transverse seals that bond the film plies together;
- b. directing gas between said film plies;
- c. detecting whether a predetermined minimum amount of gas has been directed between said film plies;
- and
- d. 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.
Dependencies are inferred from the claim text.