US 1654982 A
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Description (OCR text may contain errors)
Patented Jan. 3, 1928.A
' UNl'r-rnA STATES n 1,654,982 PATENT? oFFlcE.
LAWRENCE w. EUELLEN, or NoUN'rAIN rAxEs, NEW JERSEY, AssrGNoa ro IN-nr vrnuAL DmNxI'NG our COMPANY, INe.
. lfllIlZON OF PENNSYLVANIA.
Application filed May 6,
rIhel United 'States Letters Patent No. 11,308,793, heretofore granted t me on July 8th, 1919, disclosed a drinking cup formed from a single piece of paper having its sidev ed in use primarilyA to cold drinks and liquids,
and has been unsuited for hot drinks Afor several Well-known reasons. The paraiiin which is relied upon to retain the pleats or folds in proper position, is susceptible to melting under `the heat of the hot liquidv When poured into the cup, and which on account of its lighter'specic gravity will oat/on top of the liquid and spoil-theA drink.
- Furthermore, theunelting of the paraiiin permits the cup lfolds tov open up, thus breaking down the Walls under the Weight ofthe liquid and destroying the usefulness of the cup.V
. My vpresent invention eliminates the objectionable characteristics alluded to, and has for its object the constructionlof aonepiece paper cup, that-Will be serviceable as a holder lfor heated or hot drinks or liquids, and which Will, when filled therewith, retain its rigidity and shapeffor the time necessary for the ConsumptionV or use of the con tained liquid. i
' To accomplish this, I provideV means whereby theplcats or folds of the cup, of which the Walls are comprised, are held tolapping position, so as to counteract the natural tendency of the pleatsto unfold under Y gether and retained in their engaging over? or EASTON, rENNsYLvANIn, n conrom.
1922. serial No. 558,891.
associationn. This results in a stiifening of the rim, thus providinga substantial re-en- A.forcement at the 7top of cup, Whichprevents theiiutes or pleats from loosening vup orbecoming disengaged, which, would `otherwise* Vcause the cup to break doW'n when in use.
This invention enables the cups to be manufactured more uniformly, and owing to the restriction o f expansion due to this particular re-enforcement, the cups will more perfectly maintain their dimensions and conformation7 and When in use in cup dispensing devices, they will more freely separate one from the other, asis desirable.
While the4 principles of my inventiony may be embodied in divers forms of receptacles, I have chosen to illustrate a single embodiment which Iconsider as best suited for the u service of hot drinks. Referring to the accompanying draw` mgs, n n n Figuref lnis a view in side elevation of a fone-piece paper drinking cup, embodying the principles of my invention; v n Figure y2 is a view in vertical section thereof, and Figure 3 is'a lbottom plan view thereof.
Figure 4 is a fragmentary section on an j enlarged scale of a portion of the cup, and in section,- showing a portion of the side Walls and rim of the cup;
Fig. 5 isl a detail section, on an. enlarged scale, of a portion ofthe rim taken on the line 5-25 of Figure 3.. I Similar numerals of reference indicate likevparts throughout the respective views. lhe cup is4 formed of a single sheet of paper or other fibrous material, the blank of which it is formed being of circular shape, the central zone 1 thereof being utilized to formvthe bottom of the cup, the side Wall and rim of the cup are formed by so-called pleating as at 2 and 2', in -a tapering fashion so that the upper opened end of the cup is larger in diameter than the bottom. Of course, it will be understood that the size and form of taper will vary under certain circumstances, according to the general contour of the receptacle desired. By pleating the cup in the fashion described a number of superimposed layers are provided, which constitute as it Were reen forcing ribswhichto a considerable degree strengthen the cup, these re-enforcing ribsat the outer. terminating poton of' thecup,
' admirably serve my purpose in 'providng l to thegiormal vstre 1u, ing outwardly the circumferential' edge and- 2', which when given t `reversing the same upon- -itself as shown l' more particularly in lenlarged detail in Figl-f v ure 4.
This is accomplished by us able moldsor dies which fold the material .overrin'this fashioni- I kled, as. indicated m Figures 3 and- 5, suflil Llaminations into `practical homog'eneous as# sociation. The (':riiiklingA serves to increase the stiifening of the'rim to a very material extent, and 1t is by reason'Y ofthe re-enforced stiil'nss of the rimv that governs the strength ofthe cup, and its abilitytol withstand lateral expansion. Also, -it .is the of the rim which holds the pleats or flutes of the :lillp' together, because no' parain is for'A 'at --P Letters Patent. above referred u); What I claim is:v j
' v 1. A one-piece pleatedpapercup with an'integral'I outstanding formed" by bendingan- -upper portion of f e conformation in.'
h ofthe article, holding' I the Same firmly in S ape,'ahd preventing un.`
The-paper circumferentially cran-1 -cient pressure l bein'g'utilized" to bring 'the formed by be pose as-.descr'ibed Iin my previous" the cu outwardly then' backwardly on itse f, said rim being crinkled under pres- -sure at intervals thereabout for retaining f the pleats in vclose overlapping relation.
' '2. A'onelpieoealpleated paper cup provided with an integr b tge outstanding rim formed bending an. upper'niarginal portion of vcup outwardly and then back upon the underside thereof? the outer edge ofthe reversely-bent -portion-ofthe rim abutting against the adjacentouter face of the cup. 3, A one-piece pleated paper cup provided with aii integral outstanding rim,- the laminatins formed by the .pleats of the'cup at the being tightly compressed .to form Vvindentations at spaced points about the rim for-retainingithe' pleats in clos'e overlapping v'I felation.
'4. A one-piece pleated-'paper cup revided with an inte val outwardly extendiliifg iii'n ni-iig an uppermarginal vportion of the c'up voutwardly and then back upon itself, said rim be' 'formed concave and inzlose overlappin 5. -A.onepiece1p with an'integra relation.
backupon the ulidersi e tliereof.
. so eatedpapercupprovided outstanding concave rim iformed by-bending an' npper'marginal portion of the cup outward]rv in a curve and theno5;
' ln testimony vhereo'flIili'ave affixed Sgueme-mismas@ l crinkled on its under side under.' pressureat 'intervals thereabout 'for retaining the. pleats