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Publication numberUS1861047 A
Publication typeGrant
Publication dateMay 31, 1932
Filing dateMay 13, 1929
Priority dateMay 13, 1929
Publication numberUS 1861047 A, US 1861047A, US-A-1861047, US1861047 A, US1861047A
InventorsColton Arthur
Original AssigneeParke Davis & Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sealed capsule
US 1861047 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

May 31, 1932.

A. COLTON SEALED CAPSULE Filed May 13, 1929 E INVENTOR.

ATTORNEY.

Patented May 31, 1932 UNITED STATES PATENT? OFFICE ARTHUR GOLTON, OF DETROIT, MICHIGAN, ASSIGNOB, BY MESNE ASSIGNMENTS, TO

PARKE, DAVIS & (30., OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN SEALED carsnm Application filed Kay 13, 1929. Serial No. 882,554.

The present invention relates to capsules for containin measured quantities of materials such as ugs or other medioaments, including liquids, such as oils.

Heretofore, in enclosing dry materials in the ordinary two-part capsule, there has always been resent the possibility and often the probability that the two parts, i. e., the cap and body, may become disengaged and the contents lost. Also, the many attempts to retain liquid material in the ordinary twopart capsule have been without success due to several causes. If the liquid be placed in the capsule without sealing in some manner, the liquid may creep between the two parts and be lost.

Many attempts at sealing have been resorted to, one such being the moistening of the body before applying the 'cap. This method is unsuccessful due to the shrinkage of the body awa from the cap.

Among the ol ijects of the present invention is to obviate all of these difliculties and provide the ordinary hardened gelatin capsule with an effective seal and thereby revent losses of contents whether liqui or solid.

Another object is to provide a means of identification of the sealed in contents of such capsules.

Still other objects will readily occur to those skilled in the art upon reference to the following description and the accompanying P drawings, in which Fig. 1 is a view in elevation of the sealed capsule,- and Fig. 2 is a longitudinal section therethrough.

In the drawings the capsule is shown as consisting of the ordinary form of gelatin container comprising a body portion 10 with a cap 11 telescoped over the open end of the body.

.At the edge of the cap portion it is proposed to apply a sealing medium which will extend around the capsule and seal the edge of the cap to the body. Such a sealing medium or band is indicated at 12. The sealing medium will preferably consist of a material of substantially the same solubility as the material of the capsule and will preferably con-v sist of a solution of gelatin of about the same consistency as that used in making the capsule. In applying the sealing medium to the capsule the cap will, of course, be placed on the body after the contents have been put therein, and the capped container will be preferably held between suitable holding means at its ends. The capsule may then be rotated in front of a suitable source of supply of the sealing medium and a small band of the liquid material applied thereto. The sealing medium may be conveyed to the capsule in any suitable way as by means of a brush or by a suitable nozzle.

In any event, after the application to the capsule of a small band of the liquid sealing medium, the capsule is then subjected to a drying operation to dry the sealing material, leaving the capsule tightly sealed against loss of contents or access thereto of moisture or other outside influences.

Preferably the sealing medium is of substantially the same material as used in making the capsule and as this medium is not entirely inert to the gelatin forming the capsule, the application to the capsule of the liquid sealing medium results in a union of the sealing material with the material of the capsule rather than a mere adhesion thereto. In other words, the sealing material apparently welds itself to the material of the capsule so as to produce a substantially inseparable joint at their plane of contact.

It is also proposed to use other sealing media of substantially the same solubility as the capsule material and an example of such material is agar.

It is also proposed to use different colors of sealing material so as to furnish a visible indication of the identity or general character of the contents and this is believed to be a novel feature in itself.-

Now, having described the invention and the preferred form of embodiment thereof, it is to be understood that the said invention is to be limited, not to the specific details herein described and illustrated, but only by the scope of the claims which follow:

I claim I 1. As a new article of manufacture, a

hardened gelatin capsule comprising telescopica-lly engaged body and cap portions, each of uniform diameter throughout its length with oppositely disposed convex rounded ends and a circular band of hardened gelatin of substantially the same solubility as said capsule gelatin, said band being integrally united to both said body and cap and enveloping the annular edge of said cap.

2. As a new article of manufacture, a hardened gelatin capsule comprising telescopically engaged body and cap portions, each of uniform diameter throughout its length with oppositely disposed convex rounded ends and a circular band of hardened gelatin of substantially the same solubility as said capsule gelatin, said band being integrally united to both said body and cap and enveloping the annular edge of said cap, said band having incorporated therein means for imparting a color contrasting to the color of said body and cap.

3. As a new article of manufacture, a hardened gelatin capsule comprising telescopically engaged body and cap portions, each of uniform diameter throughout its length With oppositely disposed convex rounded ends and a circular soluble sealing band integrally united to both said body and cap and enveloping the annular edge of said cap.

ARTHUR COLTON.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2491475 *Mar 25, 1946Dec 20, 1949Parke Davis & CoEnteric capsule
US2526683 *Apr 13, 1946Oct 24, 1950Lilly Co EliMethyl cellulose capsules and process of manufacture
US2738827 *Jun 23, 1953Mar 20, 1956Edward R DaytonCapsule sealing and marking apparatus
US3125490 *Aug 9, 1961Mar 17, 1964 Tablet with contrasting indicia and method
US3190373 *Aug 22, 1962Jun 22, 1965Gerald H WeathersbyMethod and apparatus for plugging wells
US3258115 *May 12, 1965Jun 28, 1966Scherer Corp R PTwo-piece hard gelatin capsule
US4478658 *Dec 20, 1982Oct 23, 1984Warner-Lambert CompanyMethod for sealing non-enteric capsules
US4522666 *Nov 9, 1982Jun 11, 1985Warner-Lambert CompanyApparatus and method for sealing capsules by application of vacuum and steam thereto
US4543138 *Jul 7, 1983Sep 24, 1985Eli Lilly & CompanyCapsule-sealing method and apparatus
US4609417 *Mar 26, 1984Sep 2, 1986Microdry CorporationCapsule sealer and method of sealing
US4893721 *Nov 21, 1984Jan 16, 1990Warner-Lambert CompanyTamper-proof capsules
US4936461 *Jun 8, 1989Jun 26, 1990Makiej Jr Walter JMultidose capsules
US8061006 *Jul 25, 2002Nov 22, 2011Powderject Research LimitedParticle cassette, method and kit therefor
EP0112182A2 *Dec 16, 1983Jun 27, 1984Warner-Lambert CompanyApparatus for continuously forming and affixing labels to capsules
EP0127105A2 *May 21, 1984Dec 5, 1984Capsulbond IncorporatedMethod for sealing capsules
EP0129130A2 *Jun 4, 1984Dec 27, 1984Capsulbond IncorporatedApparatus for sealing capsules
EP0246804A2 *May 13, 1987Nov 25, 1987Lilly Industries LimitedImprovements in capsules
EP1213004A2 *Nov 5, 2001Jun 12, 2002MW Encap Ltd.Liquid filled capsules
Classifications
U.S. Classification424/10.3, 206/528, 424/455, 206/807, 220/DIG.340, 426/138, 424/454
International ClassificationA61J3/07
Cooperative ClassificationY10S206/807, A61J3/072, Y10S220/34
European ClassificationA61J3/07B1