Expandable bag and method of manufacture

Claim 1

The method of fabricating a fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) forming a group of pockets in a first plastic sheet, said pockets being aligned in a staggered series; (b) fabricating a rupturable solvent containing means associated with said first sheet; (c) introducing measured amounts of said first component into each pocket of said group; (d) placing a second plastic sheet over said first group of pockets and releasably sealing it at least at its marginal areas to said first sheet; (e) placing time release capsule containing said first component, and a measured amount of said second component on a portion of said first sheet spaced from all of said pockets; and (f) permanently sealing a third plastic sheet to said first sheet at the marginal areas of both and to said second sheet to provide a bag-like enclosure containing within its interior all of said compartments, and said second compartment.

Claim 2

The method of fabricating a fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) forming a group of pockets in a first plastic sheet, said pockets being aligned in a staggered series; (b) fabricating a rupturable solvent containing means associated with said first sheet; (c) introducing measured amounts of said first component into each pocket of said group; (d) placing a second plastic sheet over said first group of pockets and releasably sealing it at least at its marginal areas to said first sheet; (e) placing time release capsule containing said first component, and a measured amount of said second component on a portion of said first sheet spaced from all of said pockets; and (f) permanently sealing a third plastic sheet to said first sheet at the marginal areas of both and to said second sheet to provide a bag-like enclosure containing within its interior all of said compartments, and said second compartment.

Claim 8

The method of fabricating a fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) forming a plurality of pockets in a first plastic sheet, said pockets being aligned in a staggered series; (b) introducing measured amounts of said first component into each pocket of said group; (c) placing a rupturable plastic enclosure on said first sheet containing a solvent medium and said second component; (d) placing a second plastic sheet over said pockets and releasably sealing it at least at its marginal areas to said first sheet; and (e) permanently sealing a third plastic sheet to said first sheet at the marginal areas of both and to said second sheet to provide a bag-like enclosure containing within its interior all of said compartments, said second sheet and said enclosure.

Claim 9

The method of fabricating a fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) forming a plurality of pockets in a first plastic sheet, said pockets being aligned in a staggered series; (b) introducing measured amounts of said first component into each pocket of said group; (c) placing a rupturable plastic enclosure on said first sheet containing a solvent medium and said second component; (d) placing a second plastic sheet over said pockets and releasably sealing it at least at its marginal areas to said first sheet; and (e) permanently sealing a third plastic sheet to said first sheet at the marginal areas of both and to said second sheet to provide a bag-like enclosure containing within its interior all of said compartments, said second sheet and said enclosure.

Claim 10

The method of fabricating an aerosol-type container for dispensing a liquid product on demand in which the internal pressurizing means in said container is a fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) forming a plurality of pockets in a first continuous plastic sheet, said pockets being aligned in a staggered series; (b) introducing measured amounts of said first component into each pocket; (c) placing a time release capsule containing said first component, and a rupturable plastic enclosure on said first continuous sheet containing a solvent medium and said second component; (d) placing a second plastic sheet over said first continuous group of pockets and releasably sealing it at least at its marginal areas to said first sheet; (e) permanently sealing a third plastic sheet to said first continuous sheet at the marginal areas of both and to said second sheet to provide a bag-like enclosure containing within its interior all of said compartments, said second sheet and said enclosure; (f) forming successive bags in said first continuous sheet; (g) winding said continuous sheet containing the formed bags into a supply roll having a delivery end presenting a first bag; (h) positioning the body of said container adjacent said supply roll; (i) breaking said rupturable enclosure in the bag at said delivery end to bring its contents into contact with said time release capsule; (j) severing the bag in step (i) from said roll and inserting said bag into said container; (k) introducing said liquid product into said container; and (l) affixing a top with associated dispensing means on said container to enclose the same.

Claim 11

The method of fabricating an aerosol-type container for dispensing a liquid product on demand in which the internal pressurizing means in said container is a fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) forming a plurality of pockets in a first continuous plastic sheet, said pockets being aligned in a staggered series; (b) introducing measured amounts of said first component into each pocket; (c) placing a time release capsule containing said first component, and a rupturable plastic enclosure on said first continuous sheet containing a solvent medium and said second component; (d) placing a second plastic sheet over said first continuous group of pockets and releasably sealing it at least at its marginal areas to said first sheet; (e) permanently sealing a third plastic sheet to said first continuous sheet at the marginal areas of both and to said second sheet to provide a bag-like enclosure containing within its interior all of said compartments, said second sheet and said enclosure; (f) forming successive bags in said first continuous sheet; (g) winding said continuous sheet containing the formed bags into a supply roll having a delivery end presenting a first bag; (h) positioning the body of said container adjacent said supply roll; (i) breaking said rupturable enclosure in the bag at said delivery end to bring its contents into contact with said time release capsule; (j) severing the bag in step (i) from said roll and inserting said bag into said container; (k) introducing said liquid product into said container; and (l) affixing a top with associated dispensing means on said container to enclose the same.

Claim 15

The method of assembling an aerosol-type container for dispensing a liquid product on demand in which the internal pressurizing means in said container is a fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) providing a supply .[.roll.]. .Iadd.means .Iaddend.containing the formed bags and having a delivery end presenting a first bag, each of said bags having a time release capsule and a rupturable enclosure containing a solvent medium therein; (b) positioning the body portion of said aerosol-type container adjacent said supply .[.roll.]. .Iadd.means.Iaddend.; (c) breaking said rupturable enclosure in the bag at said delivery end to bring its contents into contact with said time release capsule; (d) .[.severing the bag in step (c) from said roll and.]. inserting said bag into said container; (e) introducing said liquid product into said container; and (f) affixing a top with associated dispensing means on said container to enclose the same.

Claim 16

The method of assembling an aerosol-type container for dispensing a liquid product on demand in which the internal pressurizing means in said container is a fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) providing a supply .[.roll.]. .Iadd.means .Iaddend.containing the formed bags and having a delivery end presenting a first bag, each of said bags having a time release capsule and a rupturable enclosure containing a solvent medium therein; (b) positioning the body portion of said aerosol-type container adjacent said supply .[.roll.]. .Iadd.means.Iaddend.; (c) breaking said rupturable enclosure in the bag at said delivery end to bring its contents into contact with said time release capsule; (d) .[.severing the bag in step (c) from said roll and.]. inserting said bag into said container; (e) introducing said liquid product into said container; and (f) affixing a top with associated dispensing means on said container to enclose the same.

Claim 18

A method of assembling an aerosol-type container for dispensing a liquid product on demand in which the internal pressurizing means in said container is a fluid impervious expandable enclosed bag containing separately compartmental first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) routing said aerosol-type containers along a predetermined path to an insertion station; (b) feeding a supply .[.roll.]. of said expandable enclosed bags to the insertion station; (c) breaking one of said compartmented gas generating components to release its contents and permit contact with the other of said gas generating components; (d) .[.severing the individual.]. .Iadd.removing a .Iaddend.bag from said supply .[.roll.].; (e) inserting the .[.severed.]. bag into said aerosol type container; (f) introducing the liquid product into the container; and (g) affixing a top on said container thereby enclosing the same.

Claim 19

A method of assembling an aerosol-type container for dispensing a liquid product on demand in which the internal pressurizing means in said container is a fluid impervious expandable enclosed bag containing separately compartmental first and second gas generating components which, upon admixture in successive amounts, generate gas causing said bag to expand gradually from a collapsed condition to an ultimate fully expanded condition comprising the steps of: (a) routing said aerosol-type containers along a predetermined path to an insertion station; (b) feeding a supply .[.roll.]. of said expandable enclosed bags to the insertion station; (c) breaking one of said compartmented gas generating components to release its contents and permit contact with the other of said gas generating components; (d) .[.severing the individual.]. .Iadd.removing a .Iaddend.bag from said supply .[.roll.].; (e) inserting the .[.severed.]. bag into said aerosol type container; (f) introducing the liquid product into the container; and (g) affixing a top on said container thereby enclosing the same.