초록 ▼

The invention relates to a multi-compartment bag which provides for the separation of two substances until their desired intermixing. A specific application of this multi-compartment bag is for hot or cold chemical packs. The substances in the multi-compartment bag are separated by two breakable wal

The invention relates to a multi-compartment bag which provides for the separation of two substances until their desired intermixing. A specific application of this multi-compartment bag is for hot or cold chemical packs. The substances in the multi-compartment bag are separated by two breakable walls and a third compartment which together act as a barrier to migration of one substance into the second substance, which would reduce the shelf life and efficiency of the hot or cold chemical pack. The present invention's use of two breakable walls and a compartment, empty or containing an inert substance, separating two reactive substances, provides a longer shelf life, a high efficiency, more reliability and improved ease of operation.

대표청구항 ▼

[ What is claimed is:] [1.] A multi-compartment bag for sorting and mixing a first substance with second substance, comprising:a first outer sheet and a second outer sheet joined together at peripheries thereof to form an internal compartment;a first breakable wall disposed within said internal comp

[ What is claimed is:] [1.] A multi-compartment bag for sorting and mixing a first substance with second substance, comprising:a first outer sheet and a second outer sheet joined together at peripheries thereof to form an internal compartment;a first breakable wall disposed within said internal compartment and sealed to an inside surface of said first sheet at a first seal, said first breakable wall sealed to an opposite inside surface of said second sheet at a second seal wherein inside surfaces of said first and second sheets and said first breakable wall define a first compartment having first substance stored therein;a second breakable wall disposed within said internal compartment and sealed to an inside surface of said first sheet at a third seal that is spaced apart from said first seal along said first sheet, said second breakable wall sealed to an opposite inside surface of said second sheet at said second seal wherein inside surfaces of said first and second sheets and said second breakable wall define a second compartment having a second substance stored therein;a third compartment defined by said first sheet and said first and second breakable walls containing a substance that is non-reactive with said first and second substances and;wherein said first and second breakable walls between said first and second seals and said second and third seals respectively under hydraulic pressure upon compression of said bag.