Patent ID: 6254911
Filing Date: 2001-07-03
Classification: A23B,A23L,B29C,B29K,B29L,B65B,B65D

Abstract:
A method of making a flat frozen raw hamburger matter, comprising steps of:filling a constitutional material of raw hamburger material between a first thermal seal, continuously provided along a conveying direction of a film having a thermally sealed sealant layer so that one of interfacial peeling, ply separation, and cohesive failure can occur when desired, and second thermal seals subsequently provided, while sequentially and continuously forming one of a three-sided sealed package bag and a four-sided sealed package bag by said second thermal seals provided in a direction perpendicular to the conveying direction with an interval therebetween;deaerating the package bag by pressing said film after said filling step and before providing the subsequent second thermal seal, so that the constitutional material is extended until a latter of said subsequently provided second thermal seals is conducted;forming the constitutional material, pressed and filled in said package bag, by equalizing the raw hamburger matter so as to be spread in said package bag; andfreezing the package bag enclosing said matter for maintaining a shape of the raw hamburger matter by rapidly freezing said package bag enclosing the equalized raw hamburger matter.