US4224366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture absorption sectional pack
Assignee: Individual
•
Filing: 1978-10-19
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Granted: 1980-09-23
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Expires: 1998-10-19
Abstract
Abstract Upper and lower contiguous sheets are bonded to each other at their outermost contiguous edges thereof to form an enclosure. The enclosure is divided into a plurality of sectional compartments isolated from each other by barrier sheets which are formed by bonding the upper and lower sheets in a conventional manner. Each sectional compartment contains a predetermined quantity of absorbent granules. The barrier sheets separating the compartments and at least one of the upper and lower contiguous sheets are dissolving paper fabricated of a water soluble carboxy methyl cellulose compound. In one embodiment both the upper and lower sheets are dissolving paper which dissolve together with the barrier sheets when the absorbent granules have absorbed a predetermined amount of moisture and/or liquid. The barrier sheets disintegrate to release the absorbent granules from each sectional compartment. The upper and lower sheets also disintegrate so that the absorbent granules are released from the pack to absorb additional moisture or liquid surrounding but removed from contact with the pack. In a second embodiment the barrier sheets and the upper sheet are dissolving paper and the lower sheet is a mildew resistant sheet operable to retain the moisture or liquid and the absorbent granules in the pack to prevent moisture or liquid from passing through the pack before being absorbed by the granules.
Inventors
- 👤 Edward G. McCabe, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:55
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/38; B65D65/46; B01; B01D; B01D53/00; B01D53/26; B01D53/261; B01D53/28; B65D81/00; B65D81/24; B65D81/26; B65D81/264; B65D81/266; B65D81/268; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/23; Y10T428/234; Y10T428/24; Y10T428/24479; Y10T428/24488; Y10T428/24562; Y10T428/24744; Y10T428/249921; Y10T428/249953
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
234 words
An improved moisture absorption pack comprising, upper and lower contiguous sheet means bonded to each other at the outermost contiguous edges thereof for forming an enclosure, barrier means for dividing said enclosure into a plurality of disintegrative sectional compartments initially sealed from each other by said barrier means, said sectional compartments each forming a separate enclosure containing a predetermined quantity of absorbent granules consisting of alkali metal carboxylate salts of starch-polyacrylonitrile graft copolymers, said barrier means and said upper contiguous sheet means being a dissolving paper fabricated of a material selected from the group consisting of a water soluble carboxy methyl cellulose compound and a methocel compound, said lower contiguous sheet means being a moisture or liquid impermeable sheet being fabricated of a mildew resistant sheet, said dissolving paper being operable to dissolve when said absorbent granules have absorbed a predetermined amount of moisture or liquid, said barrier means between adjacent compartments arranged to disintegrate and break open said sectional compartments to release said absorbent granules from each of said sectional compartments in order to permit freedom of movement of said absorbent granules, and said upper contiguous sheet means being operable to dissolve in the presence of moisture or liquid and permit freedom of movement of said absorbent granules on said liquid impermeable sheet so that said absorbent granules are free to occupy an increased area to absorb increased amounts of moisture or liquid.
Claim 2
Dependent Claim
234 words
An improved moisture absorption pack comprising, upper and lower contiguous sheet means bonded to each other at the outermost contiguous edges thereof for forming an enclosure, barrier means for dividing said enclosure into a plurality of disintegrative sectional compartments initially sealed from each other by said barrier means, said sectional compartments each forming a separate enclosure containing a predetermined quantity of absorbent granules consisting of alkali metal carboxylate salts of starch-polyacrylonitrile graft copolymers, said barrier means and said upper contiguous sheet means being a dissolving paper fabricated of a material selected from the group consisting of a water soluble carboxy methyl cellulose compound and a methocel compound, said lower contiguous sheet means being a moisture or liquid impermeable sheet being fabricated of a mildew resistant sheet, said dissolving paper being operable to dissolve when said absorbent granules have absorbed a predetermined amount of moisture or liquid, said barrier means between adjacent compartments arranged to disintegrate and break open said sectional compartments to release said absorbent granules from each of said sectional compartments in order to permit freedom of movement of said absorbent granules, and said upper contiguous sheet means being operable to dissolve in the presence of moisture or liquid and permit freedom of movement of said absorbent granules on said liquid impermeable sheet so that said absorbent granules are free to occupy an increased area to absorb increased amounts of moisture or liquid.
Claim 3
Dependent Claim
86 words
An improved moisture absorption pack as set forth in claim 1 which includes, said upper sheet means being a dissolving paper fabricated of a material selected from the group consisting of a water soluble carboxy methyl cellulose compound and a methocel compound, and said upper sheet means being operable to dissolve when said absorbent granules have absorbed a predetermined amount of moisture or liquid so that said upper sheet means disintegrates permitting said absorbent granules to occupy an increased area for absorbing additional moisture or liquid.
Claim 4
Dependent Claim
64 words
An improved moisture absorption pack as set forth in claim 1 which includes, said absorbent granules when released from said sectional compartments being retained on said liquid impermeable sheet, and said liquid impermeable sheet maintaining the moisture or liquid in contact with said absorbent granules thereby preventing any moisture or liquid from passing out of the pack before being absorbed by said absorbent granules.
Claim 5
Dependent Claim
39 words
An improved moisture absorption pack as set forth in claim 1 which includes, said liquid impermeable sheet being fabricated of a material selected from the group consisting of plastic, rubber, combined plastic and paper, and combined rubber and paper.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |