Source: http://www.google.com/patents/US6036004
Timestamp: 2013-05-23 00:13:08
Document Index: 267956560

Matched Legal Cases: ['Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08']

Patent US6036004 - Multi-compartment bag with breakable walls - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Advanced Patent Search | Web History | Sign inAdvanced Patent SearchPatentsThe 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...http://www.google.com/patents/US6036004?utm_source=gb-gplus-sharePatent US6036004 - Multi-compartment bag with breakable wallsPublication numberUS6036004 APublication typeGrantApplication number08/984,372Publication dateMar 14, 2000Filing dateDec 3, 1997Priority dateDec 3, 1997InventorsMichael L. BowenOriginal AssigneeBowen; Michael L.U.S. Classification206/219215/DIG.800International ClassificationA47J36/28B65D81/32A61F7/02F25D5/02C09K5/16B65D81/34Cooperative ClassificationB65D81/3266F25D5/02A61F2007/0276A47J36/28A61F7/106A61F2007/0098B65D81/3484C09K5/16European ClassificationA47J36/28B65D81/32H1F25D5/02B65D81/34SC09K5/16ReferencesPatent Citations (97)Non-Patent Citations (8)Referenced by (32)External LinksUSPTOUSPTO AssignmentEspacenetMulti-compartment bag with breakable wallsUS 6036004 AAbstract 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.
What is claimed is: 1. A multi-use hot or cold chemical pack, comprising: a first compartment for holding a first substance having a first breakable wall; a second compartment for holding a second substance having a second breakable wall; a third compartment interposed between the first compartment and the second compartment having a perimeter including the first breakable wall and the second breakable wall; a fourth compartment for holding a third substance having a third breakable wall; a fifth compartment for holding a fourth substance having a fourth breakable wall; and a sixth compartment interposed between the fourth compartment and the fifth compartment having a perimeter including the third breakable wall and the fourth breakable wall; wherein the first compartment is proximal to the fourth compartment and the second compartment is proximal to the fifth compartment.
2. The multi-use pack of claim 1, wherein when a first sufficient force is exerted upon the pack, the first breakable wall and the second breakable wall rupture, causing mixing of the first substance and the second substance.
9. A multi-use hot or cold chemical pack, comprising: a first sheet, a second sheet and a third sheet, wherein the first sheet, the second sheet and the third sheet are sealed together to form a first internal compartment and a second internal compartment; a first breakable wall, a second breakable wall, a third breakable wall and a fourth breakable wall; wherein the first breakable wall and the second breakable wall are arranged in the first internal compartment and are sealed to the first sheet and the second sheet so as to form a first compartment for holding a first substance, a second compartment for holding a second substance, and a third compartment interposed between the first and the second compartment; wherein the third breakable wall and the fourth breakable wall are arranged in the second internal compartment and are sealed to the second sheet and the third sheet so as to form a fourth compartment for holding a third substance, a fifth compartment for holding a fourth substance, and a sixth compartment interposed between the fourth compartment and the fifth compartment; wherein the first compartment is proximal to the fourth compartment and the second compartment is proximal to the fifth compartment.
10. The multi-use pack of claim 9, wherein when a first sufficient force is exerted upon the pack, the first breakable wall and the second breakable wall rupture, causing mixing of the first substance and the second substance.
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