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Publication numberUS2105949 A
Publication typeGrant
Publication dateJan 18, 1938
Filing dateOct 8, 1936
Priority dateOct 8, 1936
Publication numberUS 2105949 A, US 2105949A, US-A-2105949, US2105949 A, US2105949A
InventorsMethod Merta
Original AssigneeMethod Merta
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Conical cup and ice cream receptacle
US 2105949 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Jan. 18, 1938. i M. MERTA Q 2,195,949


Patented Jan. 18, 1938 UNITED ST TES PATENT. OFFICE 2.13:5,949 comcsr. curmrca cnaaunacer'rscm Method Mer a, Chicago, 111. Application mma', 1936, Serial No. 164, 71 Claims. (01. 229-) durable in use. self-locking, quickly and easily formed and which is possessed of a desirable degree of flexibility to permit the complete receptacle to be made without adhesive and to cause it to be satisfactory for use as a cup or a cup liner for retention of liquids.

Blanks for producing cups of my novelconstruction are cut from paper sheets either plain surfaced or having water-proofed coatings or qualities, after which the novel blank of my invention is rolled or bent about a suitable conical or-substantially conical form so that ,one lateral 5 edge of'the cup forms an outer overlapping edge,

and the'opposite lateral edge of the blank and adjacent area become the overlapped edge, the two overlapping areas being held in close proximity to other by the tendency of the paper blank to spread out to its original'flat form.

Further locking means comprises the locking engagementby insertion of a projecting tongue portion of the blank-in a properly positioned slit and by additional interlocking engagement be a5 tween suitably formed projecting members form ing part of theicup blank one of which is substantially adiacent the upper peripheryof'the completed cup. I

one object of 'the present invention is to pro- 40 vide a new and novel design blank of paper or the like which has a plura ty of peripheral tongues adapted to interengage or interlock in the formation of the cup; and which blank is of an outline permitting reversal of the blank so 45. that it may be rolled and formed to present either {one of the flat surfaces as the exterior of the cup.

A further objector my invention is the provision of a paper receptacle" of conical cross secufltion of economical manufacture-capable, com- 50 pact nesting positions, and non-leakable. all without the u'se'of adhesive to hold the same in formed position, andadapted, for use particularly with semi-solid products su 'ch as ice cream, and which semi-solid body which it normally y be easily gripped and removed i'rom the A still further important object "oi my invention is the provision of a blank adapted to be formed into a paper receptacle adapted for use eitheras a cup liner or as a receptacle er se having no adhered areas, and having a plurality 5 I of integral projections at and adjacent its periphei'al edges which are adaptedto interlock and thereby provide means for releasably retaining the cup in its conical formed position.

It is a further object of this invention to pro-- videa blank, capable of being formedinto a conical receptacle, having a pair of curved edges forming a peripheral re-entrant angle and having a relatively long arcuate edge and a transversely extended slit at a point near the center'of the 15 blank for receiving a projecting tongue formed integrally with the blank edge. Y

A still further object of my invention is a provision of a flexible blank of paper or the like adapted to be formed into a paper receptacle of 20 triangular crosssection having a radially extending recess formed adjacent. one end of a relatively long arcuate edge and a projecting tongue at-the opposite end of said arcuate edge adapted to' interlock 'with said recessin the .25

formation of i said cup. Y

Other and still further objects-of my invention will be apparent from the disclosures of the accompanying drawing and description; 4

The invention (in a preferred form)" is illus- 30 trated in-the drawing and hereinafter more fully described. I

Fig. 1 isa plan view of the novelblank of my invention.

Fig. 2 is 'a perspective view of a completed receptacle formed from' the blanket Fig. 1.

Fig. 3 is a top plan view, looking from above,

of the receptacle in assembled position.

Fig. 4 is a fragmentary side elevation showin the apex portion of thecup-in partially assem- 40 bled position just prior to insertion of the'extendingtongue. I 4 'Referring to the blank 01' Fig. 1, which is preferably made of paper, and which flgure'merely illustrates the preferred form of my invention, referencenumeral 10 indicates generally the blank per 'se, which is preferably made of suitable-paper, which has been coated ,or impregnated either during or subsequent to its manufacture with-any one of a number of waterrepellent compositions such as paramnor' the like to make said paper substantially impervious Ato water and to give it the-proper degree of stifl-.

ness and rigidity. I

blank ID has an arcuateedge ll, -which 56 ate edge I I and preferably in a direction parallel to the radial line of said are. It will be noted that the slit or recess I! has a rounded opening to provide for convenient insertion thereinto of an integral tongue of said blank hereinafter dee scribed. The rounded edge on the right of said slit l2, designated by reference numeral Ila merges and terminates in a non-radial, straight converging edge l3 as indicated. The end of the blank III at the opposite end of arcuate edge H has formed integrally therewith an extending and projecting tongue or extension II, the projecting edge of which is preferably, though not necessarily substantially semi-circular which semi-circular edge terminates in an acute-angled recess i5 formed at the juncture of the edge of said tongue I and a non-radial converging edge It. Edge it maybe in an irregular line, and while illustrated as slightly curved inwardly, may be straight or otherwise. The lower end of the non-radial converging side edge 16 terminates and merges with the annular edge of an integral extension or tongue I! whichis preferably formed so that it extends in -a transverse or substantially horizontal and slightly downward direction when the blank is substantially in the positionshown in Fig. 1. The lower edge "a which defines the lower portion of the ex-. tension or tongue I! and also a portion of blank III, is arcuate asindicated and merges with the curved edge IS in forming the re-entrant angle is at such juncture. The inwardly curved edge ll forms a lower extended portion of the straight side edge I! as shown in the drawing.- It will be noted that the portion of the blank immediately adjacent the curved edge I8 and exteriorly of a chord drawn from the apex of reentrant angle I! also forms an extension or gripping portion designated by reference numeral 20 which facilitates the formation of the blank into a cup or receptacle and provides convenient means whereby the paper blank may be gripped by suitable mandrel and rolled into conical form.

In the formation of the cup, the mandrel (not shown) which is of frusto-conical form with a movable gripping element representing a portion of its tip, is adapted to grip the extension 20 so that the only gripped portion of the blank will be that exterior of the chord illustrated in dotted lines in Fig. 1. Thereupon, the extending tongue 20 is folded along the line defining a chord which is shown in dotted lines in- Fig. l, and

thereupon the mandrel is rotated and the cup rolled and wrapped about its conical surface in an arcuate path beginning at said extension 20 and until said blank I! is nearly flat on the mandrel and the opposite edge i6 and tongues H and II are substantially in overlapping adjacent positions.

As clearly indicated in the drawing, a longitudinally and transversely extending slit II is formed substantially midway between tongue I and slit l2 and at a point above re-entrant angle l9 about one-third of the distance from said angle I! to arcuate edge |I. When the blank ill is in the rolled position on the mandrel as heretofore described, the areas adjacent the nonradial side edges l3 and ii are overlapped as clearly-shown in dotted lines in Fig. 3, and the blank areas adjacent the gripping extension 20 form the interior reenforcing portion for the apex of the cup, as clearly indicated in Fig. 3. The first step which is carried out to secure the conical receptacle in proper form and in a position shown in Fig. 2 is to insert the extending tongue ll through slit II which it overlies in said position, saidinsertion movement being toward the interior of the cup, whereupon the lower arcuate edge of tongue I. and recess l8 will impinge and interlock in the slit l2 thereby holding said tongue H in the locked position illustrated in Fig. 2. The lower exterior overlapping portions of the blank [IL-when in the rolled position for assembly as described, are secured and held in place against an exterior surface of the blank areas adjacent side edge II and extension 20 by means of interlocking engagement of extendingtongue i1 and the relatively narrow slit 2i.

When the blank has been rolled to the assembling position as before described, the extending tongue I I is inserted, either mechanically or otherwise, into slit 2|, said slit 2| bdng of a length so that tongue I! fits tightly therein, and when inserted, the edges of said slit will impinge upon the surfaces of tongue l1 and frictionally retain the same therein. As shown in Fig. 2, the inserted tongue I1 is shown in dotted lines on the inside of the cup. The position of the rolled blank just prior to the insertion of the extending tongue I! is shown in side elevation in Fig. 4, which Fig. 4 also shows tne shape of the slit and its converging side edges. Fig. 3 shows a view taken from the top, and particularly clarifies the areas of the cup blank adjacent edge I! which are overlapped by the opposite lateral side portions thereof. As indistrued as limitations upon the invention, its concept or structural embodiment as to the whole or any part thereof except as defined in the appended claims.

I claim:

l. A conical receptacle formed from a blank having a central slot and an arcuate edge. two opposed converging side edges extending from said arcuate edge, a pair of spaced apart projecting tongues formed integral with one of said side edges, the lower portions of said side edges merging in a reentrant angle whose apex is the axis of said arcuate edge, said arcuate edge having a slit therein.

2. A blank having an arcuate edge having a slit opening in said arcuate edge, two converging side edges, one of said side edges having two spaced apart integral transversely extending tongues, said side edges merging in a curved reentrant angle whose apex is at the axisof said arcuate edge, said blank having a central slit adapted to receive the lower of said transversely extending tongues.

3. A blank for a cup of substantially conical form having a substantially central slit, having an upper arcuate edge, a pair of opposite side edges converging from said arcuate edge to each other, the lower edges of said blank defining adtension on' one side ofsaid'angle. and forming an integral projecting tongue on the other side of said angle adapted to be inserted in said central slit.

4. A receptacle of paper or the like of triangular cross section and of substantially conical form and i'ormed from a single blank-whose opposite side edges are overlapped, the periphery of said receptacle having a slit and a spaced apart tongue extending from one side edge inserted therein for holding said receptacle in rolled p0 sition, said blank having a substantially central slit. said cup having an integral lower tongue extendingirom one of said overlapped edges and in said central slit.

5. A cup of triangular central cross section and of conical shape formed 01a single blank. having its opposite side edgesoverlapped and held to-' gether by inter-e iig'a'gernent of a to'ngueand slit onopp'osite sides respectwely of said blank, and

having a lower integral tongue, said lower tongue being inserted in a slot 'oelow-theperiphery of 10 said cup. METHOD MER'I'A.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2509133 *Jun 23, 1944May 23, 1950Dixie Cup CoPaper cup holder
US5121779 *Dec 31, 1990Jun 16, 1992John GreenFunnel
U.S. Classification229/400
International ClassificationB65D3/00, B65D3/06
Cooperative ClassificationB65D3/06
European ClassificationB65D3/06