Патент USA US2110765код для вставки
March s, 1938. R. ‘L. GRAY n AL ' 2,110,765 DR INKING CUP Filed ‘Feb; 18, 1936 //v VEN TOPS: ROBERT L. GRAY Lou/s M Lac/n. 2,ll0,765 Patented Mar. 8, 1938 UNITED STATES PATENT OFFICE 2,110,765 DRINKING CUP Robert L. Gray, Brooklyn, N. Y., and Louis V. \Lucia, West Hartford, Conn., assignors to Lueup Corporation, Brooklyn, N. Y., a corpora tion of New York . Application February 18, 1936, Serial No. 64,506 _/ 8 Claims. (01. 229-15) This invention relates to drinking cups, and more particularly to that type of cups which are made from paper or similar fibrous material. These cups, as now commonly made, consist 5 of -a blank cut from a sheet of paper material which is folded upon itself to form a container or drinking cup. . ' Although there are paper drinking cups which have a folded, or beaded drinking edge, the most economical type of cups are simply produced from a thin sheet of paper and with a thin drinking _10 edge which is comprised only of a single thick ness of the paper material. It is ‘well known that such cups with thin edges, although the 15' most economical to produce, are unsafe in their use for drinking astheir thin edges can cause injury by cutting the lips of the user. An object‘ of our invention, therefore, is to provide a drinking cup having a safe edge with 20 out necessitating the folding or beading of the said edge. Our invention is illustrated in the accompany ing drawing in which: Figure l is a rear view of a ?at type paper drinking cup comprising our invention. Figure 2 is a side view in elevation showing , the said cup in its extended form. Figure_3 is a view, in perspective, of another type of a cup to which our invention may also be applied. . Figure 4 is a fragmentary view on an enlarged scale, in vertical section, illustrating our improved drinking edge for a paper cup. Figure 5 is a similar view illustrating the com 40 mon form of the drinking edge of said cups. As illustrated in the drawing: ~ The numeral 5 denotes a drinking cup which is formed from a blank of paper that is folded over upon itself and secured together at its over 45 lapping edges as at 6. The bottom of the said cup is formed by further folding the said blank as indicated at ‘I. ‘ _ In a cup of the form shown in Figures 1 and 50 2, the front, or drinking side of the cup is curved,‘ as at 8, and extends above the rear edge 9 so that when the cup is extended as in Figure 2, the edge iii of the said extending portion 8 is used as the drinking edge. ' 55 - " Our invention relates particularly to the pro vision of a soft drinking edge for a cup of the type commonly made from a paper blank and which has a thin edge of single thickness." In other words, by our invention we provide for a cup of the character described, a drinking edge which is velvety, as that illustrated in Fig ure 4 of the drawing, instead of an edge which 10 is sharp as at l2, as shown in Figure 5, and which is the form of an edge that all of the cups of said . type now have for the reason that the said edge is thus formed by the present method of cutting the blanks from a. stack of ‘paper sheets with 16 'a cutting die upon a wooden block. The objects of this invention may be accom plished in any suitable manner whereby the drinking edge of a cup will be formed in any desired shape and still leave the'?bers of the 20 blank material freely extended along the said . A further object‘is to provide a cup of the type described which has a drinlnng edge that is in effect, what might be properly termed, a 25 “velvet" edge, inasmuch as the said edge has a pile con‘sisting‘of loose ?bers similar, to velvet. 30 drinking edge ii of the cup is straight and any portion thereof may be used in drinking. In the form of a cup shown in Figure 3, the edge to provide a velvety edge. ' In one method of providing such an edge for the cups, the blanks are cut from a single sheet of paper by a male and female type of cutting 25 die which may be dulled along that portion there of which cuts the drinking edge of the blank so that, in the cutting operation, the'material along the said edge is pulled apart, instead of being cut or sheared; thus leaving the ?bres of the said 30 material in a disrupted state and thereby forming an edge which is softer in texture than the ma terial of the cup. Another method whereby the said edge may be obtained, is that of loosening the ?bers along 35 the said drinking edge after the blanks have been cut by the above described present method, either before or after the cup has been formed. This may be done by means of a wire brush, or by what is called in the art, a “deckeling” process, or fur 40 ther, by the treatment of the said drinking edge with certain chemical, “either alone or in com bination with a. mechanical process. It will be clearly seen, from the illustrations I in the drawing, that the said drinking edge will 45 then be lined with a pile of loose fibers from the material of the blank so that it cannot cut the user's lips. - ' It. is desired to have it understood that al though we have described some of the methods 50 whereby a “velvet” or soft edgemay be formed for a paper drinking cup to render the said cup safe in the use thereof, other methods may be used, if desired, without departing from thescope of our invention. .2 2,110,766 We claim: 1. A drinking cup oi! the character described in‘ which the material thereof is substantially sof tened in texture at the drinking edge of said cup. 2. A paper drinking cup having a velvety drink ing edge of single thickness comprising a pile of loose ?bres. 7 3. A drinking cup of the character described formed from a blank of sheet material and hav 10 ing a velvety drinking edge. the paper are substantially disrupted to form a pile of loose ?bres. 5. A drinking cup of the character described having an unbroken free drinking edge which is substantially softer in texture than the mate ' v paper are purposely disrupted to provide a sub stantial pile of loose ?bres and thereby reduce " the cutting tendency of. said edge. . 7. A paper cup 01' the character described 5 formed from a. blank which is ?rst cut and then treated to change the structure of the free edge thereof to reduce the cutting ‘tendency of the said edge which forms the drinking edge 01 ‘said cup. 8. A cup formed from. a blank of paper which 10 4. A ,paper drinking cup having a drinking edge of single-thickness along which the fibers of rialoi‘ said cup. having a free edge along which'the ?bres of the ' 6. A paper article‘ of the character described is especially treated, either during the operation of cutting the same or by a separate operation. to change the structure of the free edge of said blank to reduce the cutting tendency of the said edge thereof which forms the drinking edge of 15 said cup. . ROBT. ‘L. GRAY. LOUIS V. LUCIA.