Inflatable bag

Claim 1

An inflatable bag, comprising in combination a first sheet of a gas impervious flexible material, a second sheet of a gas impervious flexible material, said first and second sheets being sealably joined together to provide a first sealed chamber disposed between said first and second sheets, a first inflation tube means extending into said first sealed chamber between said first and second sheets for inflating said first chamber, a third sheet of a gas impervious flexible material a fourth sheet of a gas impervious flexible material, said third and fourth sheets being sealably joined together to provide a second sealed chamber disposed between said third and fourth sheets, a second inflation tube means extending into said second chamber between said third and fourth sheets for inflating said second chamber, said first and second inflation tubes being mutually adjacent to permit a person to blow into both of said tubes simultaneously, first and second check valve means respectively incorporated in said first and second inflation tube means internally of said first and second compartments for preventing the flow of gas from said first and second chambers through said first and second tube means, said second and third sheets being bonded together to partially enclose a third chamber located between said second and third sheets to receive one or more articles to be bagged, and locking means for locking said second and third sheets together to complete the enclosure of said third chamber.

Claim 7

A method of making an inflatable bag, comprising the steps of placing first and second flat tubular plastic members between two superimposed sheets of an impervious flexible material with said members extending outwardly from opposite edges of said sheets, applying an adhesive tape to one of said sheets in proximity to one of said edges thereof, folding said sheets over with said opposite edges in juxtaposition and said members in mutual proximity to position said adhesive tape at the other edge of said one sheet, and sealing together portions of said folded sheets to provide first and second sealed chambers between said two superimposed sheets and a third chamber between the folded over portions of said one sheet.

Claim 8

A method of making an inflatable bag, comprising the steps of placing first and second flat tubular plastic members between two superimposed sheets of an impervious flexible material with said members extending outwardly from opposite edges of said sheets, applying an adhesive tape to one of said sheets in proximity to one of said edges thereof, folding said sheets over with said opposite edges in juxtaposition and said members in mutual proximity to position said adhesive tape at the other edge of said one sheet, and sealing together portions of said folded sheets to provide first and second sealed chambers between said two superimposed sheets and a third chamber between the folded over portions of said one sheet.

Claim 9

A method of making inflatable bags, comprising the steps of superimposing four webs of gas impervious flexible material, inserting tubular, unidirectional valve members between the top and bottom webs and the next adjacent webs with said valve members extending outwardly from the edges of said webs, sealing together continuous edge areas of said top and bottom webs and the next adjacent webs to define two sealed chambers into which said valve members extend, sealing said inner sheets together in proximity to said edge areas to provide between said inner sheets a partially enclosed chamber, and attaching to one of said inner sheets a sealing strip for subsequent attachment to the other of said inner sheets to substantially complete the enclosure of said partially enclosed chamber.

Claim 10

A method of making inflatable bags, comprising the steps of superimposing four webs of gas impervious flexible material, inserting tubular, unidirectional valve members between the top and bottom webs and the next adjacent webs with said valve members extending outwardly from the edges of said webs, sealing together continuous edge areas of said top and bottom webs and the next adjacent webs to define two sealed chambers into which said valve members extend, sealing said inner sheets together in proximity to said edge areas to provide between said inner sheets a partially enclosed chamber, and attaching to one of said inner sheets a sealing strip for subsequent attachment to the other of said inner sheets to substantially complete the enclosure of said partially enclosed chamber.