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US3741383A Expired / Lapsed US ⏱️ 0.0 years remaining

Display bottle having frangible inner compartment

Assignee: Individual
•
Filing: 1972-04-10
•
Granted: 1973-06-26
•
Expires: 1992-04-10
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Abstract

Abstract A unitary container for shipping and storing a liquid and a nonliquid (e.g., a powder), or two incompatible materials one of which has solvent properties. The materials are normally separated in the container and can be mixed when desired. The container includes a first chamber for storing the liquid and a second chamber for storing the non-liquid material. One of the chambers is surrounded by the other chamber, and in one embodiment of the invention is separated therefrom by a wall formed of a two-layer laminate. One layer of the laminate which is in contact with the liquid material is impervious to the liquid but penetrable. The inner layer of that laminate is rigid but soluble in the liquid, such that when the insoluble layer is pierced, the soluble layer comes into contact with the liquid and can thereupon be mixed with the liquid. In another embodiment of the invention, the container wall is formed of a two-layer laminate in which the inner layer is soluble and normally in contact with the non-liquid material. When the outer wall comes into contact with the liquid, its inner layer is thereby dissolved, and the normally rigid container wall thereupon becomes flexible and compressible.

Inventors

  • 👤 J Wittwer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 21:29
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/3216; Y; Y10; Y10S; Y10S215/00; Y10S215/06

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 144 words
A container for storing a fist substance not having solvent properties and a second substance having solvent properties, said container comprising an outer wall, an inner wAll, an outer chamber for storing one of said first and second substances defined between said inner and outer walls, an inner chamber for storing the other of said first and second substances separated from said outer chamber by said inner wall, one of said outer wall and said inner wall comprising a laminate having a first insoluble and relatively breakable layer, and a second relatively unbreakable soluble layer having one surface in communication with said first insoluble layer and separated from the one of said chambers in which the solvent substance is stored by said first insoluble layer, and an exposed surface normally communicating with the one of said chambers in which the nonsolvent substance is stored.
Claim 2
Dependent Claim 144 words
A container for storing a fist substance not having solvent properties and a second substance having solvent properties, said container comprising an outer wall, an inner wAll, an outer chamber for storing one of said first and second substances defined between said inner and outer walls, an inner chamber for storing the other of said first and second substances separated from said outer chamber by said inner wall, one of said outer wall and said inner wall comprising a laminate having a first insoluble and relatively breakable layer, and a second relatively unbreakable soluble layer having one surface in communication with said first insoluble layer and separated from the one of said chambers in which the solvent substance is stored by said first insoluble layer, and an exposed surface normally communicating with the one of said chambers in which the nonsolvent substance is stored.
Claim 3
Dependent Claim 21 words
The container of claim 1, in which said first insoluble layer is relatively thin as compared to said second soluble layer.
Claim 4
Dependent Claim 46 words
The container of claim 2, further comprising a bottom annular wall having a central opening therein, said inner wall being secured to said bottom wall at the portion thereof surrounding said opening, and a closure plate secured to said bottom wall and completely covering said opening.
Claim 5
Dependent Claim 46 words
The container of claim 1, in which said inner wall comprises said laminate, said second solvent substance being stored in said inner chamber, whereby the breaking of said first insoluble layer causes said second soluble layer to be brought into contact with said second solvent substance.
Claim 6
Dependent Claim 50 words
The container of claim 1, in which said outer wall is formed of said laminate, said first substance being stored in said outer chamber, said second solvent substance being stored in said inner chamber, said inner wall being breakable, the inner layer of said outer wall comprising said soluble layer.
Claim 7
Dependent Claim 26 words
The container of claim 5, in which said first insoluble layer of said outer wall is comparatively thin and flexible as compared to said soluble layer.

References Cited (Backward Citations)

US2980540A Cited
US3590989A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-06-25 1976-12-25 1977-06-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-25 1980-12-25 1981-06-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-25 1984-12-25 1985-06-26 $7700.00 Window Closed / Lapsed

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