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Publication numberUS1846670 A
Publication typeGrant
Publication dateFeb 23, 1932
Filing dateSep 21, 1928
Priority dateSep 21, 1928
Publication numberUS 1846670 A, US 1846670A, US-A-1846670, US1846670 A, US1846670A
InventorsBarbieri Cesare
Original AssigneeVortex Cup Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method of securing caps in cups with rolled edges
US 1846670 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Feb. 23, 1932. g BARBlEm 1,846,670




Jln paperdrinking cups and the like which are constructed with straight drinking edges,

it has been the practice to insert flanged paper caps within the cups to protect the contents thereof and then deflect a margin of the cup inwardly and downwardly over the flange of the cap to lock the cap in position. While this method is applicable for paper cups with straight edges it is not adaptable, however, for use in connection with paper cups having outwardly deflected or rolled edges at the open end of the cup for the reason that if the curved or rolled edge were deflected inwardly and downwardly over the margin of the cap the curved edge would be completely ruined and could not afterward be adaptable to' provide a rounded drinking edge for the cup.

To overcome the above mentioned difficulties in the capping of paper containers or the like having rolled edges, this invention has been conceived with the idea of providing an improved method whereby the curved or rolled edges of paper containers may be suit ably indented at spaced intervals to project over the edge of a flange of a cap to hold the cap locked in position over the contents of the cup. I

It is an object of this invention to provide an improved method whereby containers with rolled edges may be conveniently punched to provide retaining lugs adapted to seat over the flange of a cap to hold the cap locked in position within a container.

It is also an object of this invention to provide .a method whereby the rolled rim of a container is adapted to be indented at spaced intervals to provide a plurality of retaining lugs adapted to engage over the flange of a. cap for the container to hold the cap locked in position but permitting convenient removal of the cap by a proper deflection of the rolled margin of the cup.

It is an important object of this invention to provide an improved method whereby the rolled drinking rims of paper containers and the like may be simultaneously indented at a plurality of spaced points around the drinking periphery of the cup to provide overhanging pro ections adapted to engage the rim of a cap to hold said cap seated in a locked position to close the open end of a container.

Other'and furtherimportant objects of this invention will be apparent from the disclosures in the drawings and specification.

This invention (in a preferred form) is illustrated in the drawings'and hereinafter morefully described;

On the drawings;

Figure 1 is a top plan view of a capped container constructed according to the method embodying the principles of this invention.

Figure 2 is a vertical central section of the closed container taken on line Hlll of Figure 1 and illustrating the contents of the container in section.

Figure 3 is an enlarged fragmentary detail section taken on line IHIH of Figure 1.

Figure 4 is a fragmentary sectional view of a rolled edge cup seated in a deflecting mechanism whereby the improved method is adapted to be performed.

As shown on the drawings:

The reference numeral 1 indicates a conical paper container or cup, the upper margin or edge of which is deflected or curved to provide a rolled drinking edge for rounded rim 2 permitting a. cap 3 to be inserted into the upper open end of the cup above the contents 4 of the cup. The cap 3 is provided with an upwardly directed flange 5 which is inclined to flatly scat against the inner face of the cup 1 above the contents 4.

For the purpose of holding the flanged cap locked in a seated position within the cup, an improved method has been provided whereby the cap may be held in place without destroying the outwardly rolled drinking edge of the cup. The method consists of seating a filled cup 1 in a holder or socket 6 provided with a beveled ring 7 disposed to the inside of a stop shoulder 8. The cup 1 is thus adapted to be seated in the holder 6 with the rolled edge projecting above the beveled ring 7. The cup 1 may be filled with a quantity of ice cream or thelike either be fore or after it is seated in the holder 6 after which a flanged cap 3 is seated therein with the beveled flange 5 thereof flatly contacting lldounted above the holder 6 and operable by any suitable means is a slidable plunger rod 9 provided with a shank 10 on the lower end of which a cap retaining or plunger head 11 is secured. Engaged over the plunger head 11 is a hood 12, the lower edge of which is adapted to seat against the stop shoulder 8 when the plunger head is in its lowermost position seated against the upper surface of the cap 3 to securely hold the cap in position during a cap riin notching operation whereby the flanged cap .is locked within the cup. Slidably mounted within the hood above the plunger head 11 and surrounding the plunger shank 10 is a crimping die pl te 13, the rim let of which is directed down ardly and is provided with a plurality of ecu distantly spaced deflecting teeth 15. i the present instance six teeth are proi 1 ed on the rim of the crimping die plate 13 nut, of course. it will be understood that any other suitable number of teeth desired may be provided on the rim of the criinper die plate. Attached to the crimper die plate 13 are pair of posts 16 to facilitate operation of the criinper die plate within the hood 12 after the plunger head 11 has been lowered. into its lowermost position as illustrated in 'gnre 4- with a. plunger hood seated upon the stop shoulder 59 of the holder 13.

-llVith a filled cup seated in position within the holder 6 and having a, flanged cap en" gaged therein above the contents 4., the plunger head 11 and the hood 12 are first lowered to perrnit the plunger head ii. to push the cap 8 a predetermined distance into the cup 1. T he die plate 18 is now operated by means of the posts 16 to cause the die plate 13 to move downwardly within the hood 12 cansing the teeth 15 to engage the rolled edge 2 of the cup at spaced intervals to inwardly deflect portions of the rolled edge to form retaining lugs 0r teeth 17 which project over the upper edge of the flange 5 of the cap 3 thereby serving to lock the cap in seated position within the cup without mutilating or destroying the rolled edge 2. lit will thus be noted that portions of the rim 2 are left between the lugs or teeth 17 sufficient to afiord convenient rounded drinking edges for drinking the contents of a cup when a liquid is contained therein and the cap has been removed.

I am aware that numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon, otherwise than necessitated by the prior art.

I claim as my invention:

1. method of securing a flanged cap within a container provided with a rolled drinking edge, said method consisting of first inserting a flanged cap in the container above the contents thereof and then indenting the rolled edge of the cup at spaced intervals to adord retaining projections engaging over the flange of the cap to hold the cap loclred in position within the container.

2. The method of capping a rolled edged paper container consisting of depositing a cap within the container and then depressin'g portions of the rolled edge over the cap edge leaving rolled drinkin segments between the depressions.

3 The method of securing a cap within rolled edged paper container said method consistin ojlfi indenting portions oi the rolled edge to form retaining projections for engaging over the edge of the cap to hold the cap in place.

a The method of securing a ilai'iged cap in container having its rini portion coop era ing with the flange of the cap extended )IlCl said flange which consists in providthe edge of said rini portion with a pinhty of indentations extending over the edge e the flange and cooperating with said flange hold the cap in place in the container. in testimony whereof I have hereunto subscribed my name.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2668650 *Aug 3, 1950Feb 9, 1954Huyler SPressure-sustaining sealing head
US3041802 *Nov 24, 1954Jul 3, 1962Nicholas A CummingsMethod of forming a sealed conical container
US3163973 *Apr 9, 1962Jan 5, 1965Lily Tulip Cup CorpCup sealing apparatus
US3688464 *Feb 25, 1970Sep 5, 1972Continental Can CoMethod of and apparatus for closing container
US4338765 *Jun 8, 1979Jul 13, 1982Honshu Paper Co., Ltd.Method for sealing a container
US4549389 *May 5, 1983Oct 29, 1985Zichy Theodore B RPrecharged containers
U.S. Classification53/486, 53/366, 229/5.5, 53/287
International ClassificationB31B17/00
Cooperative ClassificationB31B2201/60, B31B1/60, B31B2203/062, B31B17/00, B31B2217/082
European ClassificationB31B1/60, B31B17/00