US Patent No: 6,036,004
Number of patents in Portfolio can not be more than 2000
Multi-compartment bag with breakable walls
Stats
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Mar 14, 2000
Issued date -
Dec 3, 1997
filing date -
08/984,372
serial no -
Expired
status
Importance
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Abstract
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.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,347,848 Small ice pack | 33 | 1980 | |
| 4,385,950 Small ice packs and method of manufacturing the same | 18 | 1982 | |
| 4,523,353 Small ice packs and method of manufacturing the same | 27 | 1982 | |
| 4,688,572 Medical/sports thermal pack | 75 | 1986 | |
| 4,951,666 Thermal pack | 30 | 1988 | |
| D327329 Ice pack | 13 | 1989 | |
| 5,045,041 Method of manufacturing a reusable fabric-covered heat-exchange bag | 9 | 1989 | |
| 5,074,300 Reusable fabric-covered heat-exchange bag | 27 | 1989 | |
| 5,109,841 Facial ice pack | 12 | 1990 | |
| 5,466,251 Therapeutic sleeve | 30 | 1994 | |
| 5,545,197 Reusable heat or cold chemical therapy pack | 29 | 1995 | |
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| 4,496,046 Multiple chamber container with inner diaphragm and intermediate chamber | 41 | 1984 | |
| 4,519,499 Container having a selectively openable seal line and peelable barrier means | 76 | 1984 | |
| 4,770,295 Selectively openable seal line and containers having same | 66 | 1987 | |
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| 5,356,426 Refillable ice pack | 24 | 1993 | |
| 5,723,002 Ice pack | 8 | 1994 | |
| 5,641,325 Ice pack | 9 | 1994 | |
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| 5,353,927 Plural compartment package | 22 | 1993 | |
| 5,492,219 Plural compartment package | 58 | 1994 | |
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| 4,462,224 Instant hot or cold, reusable cold pack | 100 | 1983 | |
| 4,953,550 Chemical thermal pack having an outer pouch provided with capillaries | 30 | 1988 | |
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| 4,527,566 Body wrap | 86 | 1983 | |
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| 4,458,811 Compartmented flexible solution container | 113 | 1983 | |
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| 4,276,263 Sterilization system | 12 | 1979 | |
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| 4,465,488 Collapsible multi-chamber medical fluid container | 79 | 1981 | |
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| 5,178,139 Absorbent pad and thermal pack | 48 | 1990 | |
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| 4,931,333 Thermal packaging assembly | 48 | 1988 | |
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| 4,805,620 Adjustable wrappable, stretchable wrap sheet | 83 | 1987 | |
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| 4,585,003 Ice-pack retention device | 35 | 1984 | |
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| 4,636,391 Apparatus and method of forming a sterile product package | 13 | 1985 | |
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| 4,227,614 Packages | 18 | 1978 | |
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| 5,184,470 Endothermic cooler for electronic components | 10 | 1991 | |
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| 5,261,241 Refrigerant | 18 | 1992 | |
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| 4,986,076 Isothermal cooling method and device | 20 | 1989 | |
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| 4,823,985 Forming in situ a composition consisting of two separately packaged constituents and dispensing assembly for carrying out this process | 194 | 1988 | |
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| 4,628,932 Knee ice pack | 63 | 1984 | |
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| 4,668,564 Hydrogel materials for hot and cold therapy and method for forming same | 36 | 1986 | |
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| 5,275,156 Reusable heat releasing pack | 24 | 1992 | |
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| 5,267,646 Containers having plurality of chambers | 80 | 1992 | |
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| 4,312,473 Two-chamber envelope package | 30 | 1980 | |
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| 4,239,105 Resin capsule for mining roof bolting systems | 15 | 1979 | |
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| 4,537,184 Portable orthopaedic splint system | 22 | 1983 | |
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| 4,397,315 Dressing with temperature pack | 37 | 1981 | |
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| 4,751,119 Container for self-heating or self-cooling of drinks or foodstuffs by an exothermic or endothermic reaction | 21 | 1986 | |
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| 4,854,760 Disposable container with applicator | 29 | 1987 | |
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| 4,226,330 Rupture lines in flexible packages | 62 | 1976 | |
| 4,204,543 Coolant band | 79 | 1978 | |
| 4,326,533 Coolant band | 44 | 1979 | |
| 4,372,318 Thermal treatment device | 28 | 1980 | |
| 4,402,402 Barrier seal multiple-compartment package | 56 | 1981 | |
| 4,427,010 Method and means for cooling injured parts or areas of a human or animal body | 25 | 1981 | |
| 4,586,506 Elastic wrap connecting with heat or cold pack | 67 | 1984 | |
| 4,780,117 Time release cooling system | 43 | 1987 | |
| 4,856,651 Chemical thermal pack and method of making same | 50 | 1987 | |
| 5,163,504 Container heating or cooling device and building material | 16 | 1988 | |
| 5,020,711 Pouch for reusable hot/cold packs for medical usage | 55 | 1989 | |
| 4,972,832 Thermal pack holder | 49 | 1989 | |
| 5,205,278 Chemical bag warmer | 25 | 1992 | |