Packaging method
First Claim
1. A method of packaging goods comprising providing a base,placing goods over said base,placing an inner skin lid over said goods,placing an outer lid over said inner skin lid, said outer lid having an undersurface,sealing said inner skin lid to said base to hold said goods relative to said base,causing said inner skin lid to be urged relatively towards the undersurface of said outer lid to displace unwanted gas by reducing gas pressure between said inner skin lid and said outer lid, and thereaftersealing said outer lid relative to said inner skin lid and said base while in the urged condition, said inner skin lid being of a material to allow a required gas to permeate said inner skin lid when said outer lid is removed, ruptured or opened,said base and said outer lid being of material which will substantially inhibit undesired gas external of the package from contacting said goods.
0 Assignments
0 Petitions
Accused Products
Abstract
A method of packaging goods such as red meats is disclosed. The goods (5) are packaged on a base (1) with an inner skin lid (11) which at least partially skin packs the goods (5) to the base (1) to hold the goods (5) to the base (1). An outer lid (7) is placed over the inner skin lid (11)and gas pressure is reduced therebetween causing the inner skin lid (11) to be urged relatively towards the undersurface of the outer lid (7). The outer lid (7) is then sealed to the inner lid (11) and the base (1). The inner skin lid (11) is of a material which will allow a required gas such as O2 to penetrate the inner skin lid (11) when the outer lid (7) is opened, removed or ruptured to, in turn, allow the red meat, if discolored, to bloom to a red color. The method enables unwanted gases such as O2 to be substantially excluded from the packaging until the outer lid (7) is opened, removed or ruptured.
-
Citations
20 Claims
-
1. A method of packaging goods comprising providing a base,
placing goods over said base, placing an inner skin lid over said goods, placing an outer lid over said inner skin lid, said outer lid having an undersurface, sealing said inner skin lid to said base to hold said goods relative to said base, causing said inner skin lid to be urged relatively towards the undersurface of said outer lid to displace unwanted gas by reducing gas pressure between said inner skin lid and said outer lid, and thereafter sealing said outer lid relative to said inner skin lid and said base while in the urged condition, said inner skin lid being of a material to allow a required gas to permeate said inner skin lid when said outer lid is removed, ruptured or opened, said base and said outer lid being of material which will substantially inhibit undesired gas external of the package from contacting said goods.
-
11. A method of packaging goods, said method having the following steps:
-
(a) providing three overlapping webs, the two outer webs being gas barrier webs and the inner web being a gas permeable web; (b) providing goods between one of said gas barrier webs and said gas permeable web; (c) sealing said goods between said one gas barrier web and said gas permeable web so that said goods are therebetween, said sealing being effected by sealing means which defines a seal path near what will be the perimeter of the packaging and which extends completely around said seal path; (d) sealing closed a chamber about the three webs and the goods, evacuating air from said chamber to lower air pressure in said chamber to permit said gas permeable web to be urged relatively towards the undersurface of the other gas barrier web to displace gas therebetween, and thereafter sealing said other gas barrier web relative to said gas permeable web and said one barrier web while the gas permeable web is in the urged condition, said gas permeable web permitting a required gas to permeate therethrough when said other gas barrier web is removed, ruptured or opened. - View Dependent Claims (12, 15, 16, 17, 18, 19, 20)
-
Specification