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US 5,952,025 AGranted
Bag and method of making the same
AssigneeAmerican Packaging Corporation
InventorGilbert N. Yannuzzi, Jr.
Life of this patent
Estimating the term…
Abstract
A bag suitable for use in microwave cooking is constructed of an elongated tube of flexible material closed at one end by a cold seal closure and having a heat seal adhesive deposit applied to the other end thereof for use in closing the bag after filling thereof to form a package. In another embodiment, a package suitable for use in microwave cooking is constructed of an elongated tube of flexible material closed at one end by a cold seal closure and having a cold seal adhesive deposit applied to the other end thereof for use in closing the bag after filling thereof. Methods for making bags and packages including methods for making rolls from which bags and packages may be made.
Claims20
A package for use in microwave cooking comprising a bag including an elongated tube of flexible material having a plurality of side panels, a first end located at one end of said side panels and a second end located at the other end of said side panels,
- means for sealing said first end of said tube including a bond of a cold seal adhesive means for bonding the top first end of the tube together such that the bond at ambient temperature cannot be opened without tearing the flexible material of the tube and such that the bond at elevated temperatures produced in microwave cooking softens to form a peelable closure that may be opened without tearing the flexible material of the tube, said cold seal adhesive means located on opposed inner surfaces of said side panels, said cold seal adhesive on said side panels being pressed together to form a first cold seal closure extending across said first end of said tube, and
- means for sealing said second end of said tube including a bond of a cold seal adhesive on opposed inner surfaces of said side panels, said cold seal adhesive having been subjected to pressure to form a second cold seal closure extending across said second end of said tube,
- said tube providing an enclosed space located between said first and second closures, and
- a quantity of microwaveable product contained within said enclosed space.
1 more element
A method of making a package suitable for use in microwave cooking comprising
- providing a flat web of flexible material, said web of material having a plurality of successive lengths of equal size, each length of said web having a cold seal adhesive means at a first end and a cold seal adhesive means at a second end, said cold seal adhesive means bonding the top first end of the tube together such that the bond at ambient temperature cannot be opened without tearing the flexible material of the tube and such that the bond at elevated temperatures produced in microwave cooking softens to form a peelable closure that may be opened without tearing the flexible material of the tube,
- forming each length of said flat web into a tubular web having a plurality of opposed side panels, each of said tube lengths having said first and second adhesive deposits at the ends thereof,
- positioning said tubular web around a fill tube,
- applying pressure to said opposed side panels of a first tube length in the area of the first cold seal adhesive means to form a first cold seal closure,
- filling said first tube length with a desired filling material, and
- applying pressure to said opposed side panels of said first tube length in the area of the second cold seal adhesive means to form a second cold seal closure and thereby form a sealed package, and simultaneously applying pressure to said opposed side panels of a second, next succeeding tube length in the area of the first cold seal adhesive means to form a first cold seal closure on the second tube length.
3 more elements
A roll comprising
- a continuous web having a plurality of lengths constructed and arranged to be made into a package suitable for use in microwave cooking, wherein
- said web is made of a flexible material and comprises a plurality of successive web lengths of equal size, each web length comprising a first deposit of a cold seal adhesive at a first end and a second deposit of cold seal adhesive at a second end,
- said cold seal adhesive constructed and arranged to seal the ends of each web length to form a tube from each web length,
- said cold seal adhesive means bonding the first end of the tube together such that the bond at ambient temperature cannot be opened without tearing the flexible material of the tube, and such that the bond at elevated temperatures produced in microwave cooking softens to form a peelable closure that is openable without tearing the flexible material of the tube.
1 more element
A method of using a roll of web material comprising a plurality of successive lengths to continuously form a bag and to fill the bag with a desired filler material to form a package comprising
- providing a roll of flexible web material, said web of material having a plurality of successive lengths of equal size, each length of said web having a cold seal adhesive means at a first end and a cold seal adhesive means at a second end, said cold seal adhesive means bonding the top first end of the tube together such that the bond at ambient temperature cannot be opened without tearing the flexible material of the tube and such that the bond at elevated temperatures produced in microwave cooking softens to form a peelable closure that may be opened without tearing the flexible material of the tube,
- forming each length of said web into a tubular web having a plurality of opposed side panels, each of said tube lengths having said first and second adhesive means at the ends thereof,
- positioning said web length around a fill tube,
- applying pressure to said opposed side panels of a first tube length in the area of the first cold seal adhesive means to form a first cold seal closure,
- filling said first tube length with a desired filling material, and
- applying pressure to said opposed side panels of said first tube length in the area of the second cold seal adhesive means to form a second cold seal closure and thereby form a sealed package, and simultaneously applying pressure to said opposed side panels of a second, next succeeding tube length in the area of the first cold seal adhesive means to form a first cold seal closure on the second tube length.
3 more elements
A bag suitable for use in microwave cooking comprising
- an elongated tube of flexible material having a plurality of side panels, a first end located at one end of said side panels, and a second end located at the other end of said side panels,
- means for sealing said first end of said tube including a deposit of cold seal adhesive located proximate the first end on opposed inner surfaces of said side panels, said cold seal adhesive means bonding the top first end of the tube together such that the bond at ambient temperature cannot be opened without tearing the flexible material of the tube and such that the bond at elevated temperatures produced in microwave cooking softens to form a peelable closure that may be opened without tearing the flexible material of the tube, said cold seal adhesive on said side panels being pressed together to form a first cold seal closure extending across said first end of said tube, and
- means for sealing said second end of said tube including a deposit of a cold seal adhesive located proximate the second end on opposed inner surfaces of said side panels, said cold seal adhesive being responsive to the application of pressure thereto to form a cold seal closure extending across said second end of said tube.
A method of making a package suitable for use in microwave cooking comprising
- providing a flat web of flexible material, said web of material having a plurality of successive lengths of equal size, each length of said web having a heat seal adhesive means at a first end and a cold seal adhesive means at a second end, said cold seal adhesive means bonding the top first end of the tube together such that the bond at ambient temperature cannot be opened without tearing the flexible material of the tube and such that the bond at elevated temperatures produced in microwave cooking softens to form a peelable closure that may be opened without tearing the flexible material of the tube,
- forming each length of said flat web into a tubular web having a plurality of opposed side panels, each of said tube lengths having said first and second adhesive deposits at the ends thereof,
- positioning said tubular web around a fill tube, applying heat and pressure to said opposed side panels of a first tube length in the area of the heat seal adhesive means to form a heat seal closure,
- filling said first tube length with a desired filling material, and
- applying pressure to said opposed side panels of said first tube length in the area of the cold seal adhesive means to form a cold seal closure and thereby form a sealed package and simultaneously applying heat and pressure to said opposed side panels of a second, next succeeding tube length in the area of the heat seal adhesive means to form a heat seal closure on the second tube length.
2 more elements
Dependencies are inferred from the claim text.