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Publication numberUS3722188 A
Publication typeGrant
Publication dateMar 27, 1973
Filing dateDec 10, 1970
Priority dateDec 10, 1970
Publication numberUS 3722188 A, US 3722188A, US-A-3722188, US3722188 A, US3722188A
InventorsCullen J
Original AssigneeCullen J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Desiccant capsule and package embodying the same
US 3722188 A
Abstract
A capsule of a synthetic moisture-permeable material such as cellulose acetate contains a desiccant material such as calcium oxide and has an adhesive surface which is applied to the interior of a container whereby the capsule is exposed to moisture in the container or in the contents thereof but with the capsule attached to an interior container wall to prevent the same from being commingled with the contents of the container.
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Description  (OCR text may contain errors)

United States Patent [191 Cullen [451' Mar. 27, 1973 DESICCANT CAPSULE AND PACKAGE 3,138,432 6/1964 Kleinhans ..206/.5

EMB DYIN THE SAW 0 V a ,7 V .t FOREIGN PATENTS OR APPLICATIONS [76] Inventor: John S. Cullen, 138 Wesley Avenue, 1 246 918 10/1960 F rance Buffalo T 14214 497,852 12/1938 Great Britain ..55/38? [22] Filed: Dec. 10, 1970 Primary EtxaminerBemard Nozick [21] Appl' 96853 Att0mey-Christel & Bean [52] U.S. Cl. ..55/384, 55/387, 206/18 [57] ABSTRACT 5 gig A capsule of a synthetic moisture-penneable material 0 re 6 6 such as cellulose acetate contains a desiccant material v such as calcium oxide and has an adhesive surface which is applied to the interior of a container whereby [56] References C'ted the capsule is exposed to moisturein the container or UNITED STATES PATENTS in the contents thereof but with the capsule attached I to an interior container wall to prevent the same from 2,475,241 1949 Hermansoflw being comminglecl with the contents of the container. 2,805,183 9/1957 Higginsm; I

8/1961 Schifferley ..55/338 2 Claims, 3 Drawing Figures PATENIEDuiRznma I N VEN TOR.

JOHN s CULLEN ATTORNEYS DESICCANT CAPSULE AND PACKAGE EMBODYING THE SAME BACKGROUND OF THE INVENTION This invention relates to desiccant devices and particularly to a desiccant capsule and a package employing the same.

It is well known in the packaging arts to include .in

packaged material a capsule of moisture permeable 1 SUMMARY OF THE INVENTION The. present invention provides a capsule or similar moisture permeable receptacle of desiccant material which is adapted to be attached to an interior wall of a container or package in such manner that it presents a moisture permeable face to the interior of the container and the contents thereof but remains securely attached to such interior wall of the container when the contents of the container are removed therefrom.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is an elevational view of a conventional metal can partly in cross section with one form of the desiccant capsule of the present invention associated therewith;

FIG. 2 is an exploded cross sectional view of the capsule of FIG. 1; and

FIG. 3 is a top plan view of the capsule of FIGS. 1 and 2.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring first to FIG. -2, the capsule shown herein by way of example comprises a cup-shaped flanged receptacle of a cellulose acetate sheet material which is inherently permeable to moisture. A companioncupshaped member 11 telescopes snugly within receptacle 10 to complete the capsule structure. The capsule thus provided contains calcium oxide or other similarly hygroscopic material. Upon exposure to moisture the calcium oxide is irreversibly converted to calcium hydroxide.

When the capsule is assembled the bottom wall of member 11 is preferably co-planar with the flange 12 of receptacle l0 and an adhesive sheet 13 is applied across the bottom surfaces of member 11 and flange 12. The sheet 13 may comprise simply a sheet of adhesive material or may comprise a substrate having adhesive applied to its opposite surfaces.

- The adhesive employed is preferably of the pressuresensitive type and the usual protective sheet 14 is applied to the exposed adhesive surface of sheet 13, to be removed in the usual manner when the capsule is ready for application.

One preferred method of completing the combination of the present invention is illustrated in FIG. 1 wherein a conventional sheet metal can 16 has a lid 17 with the capsule of FIGS. 2 and'3, after removal of propunctured during opening of the container tective sheet 14, adhesively attached to the bottom (interior) surface of lid 17. In this instance of use the capsule will be applied to lid 17 before the latter is secured to the body of can 16, such securement being in the usual manner as generally indicated at 18 in FIG. 1.

0 The can and lid may also be of the type wherein the lid may be removed and replaced.

The desiccant means of the present invention may be employed with a wide variety of packaged products and in a variety of packages or containers. Products in which desiccant means are particularly useful are dehydrated citrus fruit juices which take the form of a powder, other dehydrated food products, vitamin pills and other pharmaceutical products, and many others. The desiccant not only prevents hydration of the packaged product but also removes final traces of moisture therefrom.

In FIG. 1 the contents of can 16 are indicated at 18, such contents being usually inpowdered or granular form orin layer particles such as pills or pellets. Where desired the capsule'may be disposed directly in the contents as by attaching the same to a side or bottom wall of the container.

It will be seen from the foregoing that the contents of the container may be poured or otherwise removed therefrom without any danger of the desiccant capsule being dispensed with the contents or overlooked and lost therein. Also, the danger of the capsule being or dispensing of the contents is minimized and the likelihood of the desiccant material coming into harmful contact with the packaged product is virtually eliminated.

A preferred embodiment of the present invention is shown in the drawings and described herein to illustrate the principles of the invention but it is to be understood that numerous modifications may be made without departing from the broad spirit and scope of the invention.

I claim:

1. A container for material which is to be kept in a relatively anhydrous condition having in combination therewith a desiccant capsule comprising a moisturepermeable cup-shaped part containing hygroscopic material, a second cup-shaped part telescoped into the first cup-shaped part with the side walls of the cupshaped parts in contact to complete the capsule with the bottom wall of the second cup-shaped part and the annular rim of the first cup-shaped part being substantially coplanar, a double-faced adhesive sheet applied across the bottom wall of said second cup-shaped part and the rim of said first cup-shaped part to retain the I parts in assembled relation and with'its opposite face adhesively secured to an interior surface of said container.

2. A capsule according to claim -1 wherein said first cup-shaped part has an outward annular flange at the rim thereof substantially coplanar with the radial wall of said second cup-shaped part and with said adhesive sheet applied across the outer surfaces of said flange and said second cup-shaped part.

* IR i

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2475241 *Feb 1, 1945Jul 5, 1949Hermanson William AHeat sealed bag
US2805183 *Jul 19, 1955Sep 3, 1957Norvil Tall CompanyLaminated pressure-sensitive adhesive tapes
US2994404 *Apr 28, 1959Aug 1, 1961Richard E SchifferlyMoisture absorbing device
US3138432 *May 11, 1962Jun 23, 1964Luce Reflexite CorpDevice for the treatment of ambient room atmosphere
FR1246918A * Title not available
GB497852A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4563333 *Aug 22, 1984Jan 7, 1986Frigon Walter JDeodorizing fitting for air filters
US4772300 *Apr 4, 1985Sep 20, 1988Multiform Desiccants, Inc.Adsorbent cartridge
US4783206 *Sep 18, 1987Nov 8, 1988Multiform Desiccants, Inc.Adsorbent cartridge
US4934556 *Jan 9, 1989Jun 19, 1990Miles Inc.Sealable test strip container
US5035731 *Mar 30, 1990Jul 30, 1991Philip Morris Management Corp.Device for controlling relative humidity within a substantially sealed container
US5037459 *Feb 20, 1990Aug 6, 1991Philip Morris Management Corp.Device for controlling relative humidity within a substantially sealed container
US5092914 *Jun 7, 1990Mar 3, 1992Multiform Desiccants, Inc.Floatable oxygen-absorbing cartridge
US5551557 *Oct 25, 1994Sep 3, 1996Convey, Inc.Efficient method and apparatus for establishing shelf-life of getters utilized within sealed enclosures
US5705211 *Oct 3, 1996Jan 6, 1998Bedell; Daniel J.Method and apparatus for carbonating a beverage
US5800596 *Jan 13, 1997Sep 1, 1998L'orealWater-in-oil emulsion containing retinol, its use and its packaging
US5894949 *Mar 13, 1995Apr 20, 1999Smithkline Beecham P.L.C.Container for pharmaceutical substances
US5934773 *Jul 3, 1997Aug 10, 1999Ferrell; Joseph C.Humidifier device
US6010558 *Aug 13, 1998Jan 4, 2000Flame Gard, Inc.Grease containment system and method for absorbing grease
US6112888 *Jun 28, 1996Sep 5, 2000W. R. Grace & Co.-Conn.Non-reclosable packages containing desiccant matrix
US6180708Jul 8, 1997Jan 30, 2001W. R. Grace & Co.-Conn.Thermoplastic adsorbent compositions containing wax and insulating glass units containing such compositions
US6244432Aug 9, 1999Jun 12, 2001Albert L. SaariHumidity control device for gun cases
US6247604Jan 20, 1999Jun 19, 2001Smithkline Beecham P.L.C.Desiccant-containing stopper
US6475270 *May 22, 2000Nov 5, 20023M Innovative Properties CompanyNested diffusional filter
US6777481Jan 12, 2001Aug 17, 2004W. R. Grace & Co.-Conn.Thermoplastic adsorbent compositions containing wax and insulating glass units containing such compositions
US6932267 *Nov 6, 2003Aug 23, 2005Louis F. Potenza, Jr.Pizza delivery box
US8221705Dec 17, 2008Jul 17, 2012Gen-Probe, IncorporatedReceptacles for storing substances in different physical states
US20040094436 *Nov 6, 2003May 20, 2004Potenza Louis F.Pizza delivery box
US20050112785 *Oct 29, 2004May 26, 2005Siu-Yin WongImmunodiagnostic device having a desiccant incorporated therein
US20050129812 *Dec 12, 2003Jun 16, 2005Brown Martha J.M.Packaging for eliminating off-odors
US20050178677 *Feb 16, 2004Aug 18, 2005Sonoco Development, Inc.Container assembly having an overcap with a storage compartment
EP1713563A1 *Feb 3, 2005Oct 25, 2006Fred S. BrunkDesiccant bottle cap
WO1995025045A1 *Mar 13, 1995Sep 21, 1995Smithkline Beecham PlcContainer for pharmaceutical substances
WO2007034093A1 *Sep 25, 2006Mar 29, 2007Airsec Soc Par Actions SimplifOne-piece container with a hinged cap/lid
WO2008040841A1 *Sep 12, 2007Apr 10, 2008Lab Pharma LtdA desiccant system for the regulation of humidity in inhalation powders
Classifications
U.S. Classification96/14, 206/205, 206/18, 96/134, 426/398, 426/131, 426/124
International ClassificationB65D51/24, B65D51/30
Cooperative ClassificationB65D51/30
European ClassificationB65D51/30