US1972006A - Paper cup - Google Patents

Description

H. CAREW Aug. 28, 1934.

PAPER CUP 2 Sheets-Sheet 1 Filed Aug. 22, 1950 flz'man @raw H. CAREW PAPER CUP Aug. 28, 1934.

Filed Aug. 22, 1930 2 Sheets-Sheet 2 lift/man firew UNITED STATES PATENT OFFICE PAPER CUP Herman Carew, Easton, Pa.,' assignor to Individual Drinking. Cup Company, 1110., Easton, Pa.,

a corporation of Pennsylvania Application August 22, 1930, Serial No. 477,098

1 Claim. (Cl. 2291.5)

My invention relates to newand useful im- Fig. 2 is a side elevation of a completed reprovements in receptacles and more particularly ceptacle or cup. to paper cups or the like intended for but a sin- Fig. 3 is an elevation at right angles to that gle use and adapted to be nested in stack formadisclosed in Fig. 2. tion so that the terminal. cup may be withdrawn Fig. 4 is a top plan.

for use. Fig. 5 is a plan of a blank from which the The principal object'of the invention resides receptacle or cup is formed. in the provision of a receptacle of the character Fig. 6 is a perspective showing the initial fold described which is relatively simple and inexof the blank.

10 pensive in. construction, being formed of rela Fig. 7 is. a fragmental detail showing a vertively light material, and of a construction adapttical section through the bottom portion of the ing a relatively large number to be nested in a receptacle or cup; 'and relatively small stack thereby facilitating their Fig. 8 is a horizontal section on the line 8-8 use in dispensing machines and making itwunof Fig. 7.

15 necessary for the attendant to frequently refill In the drawings a indicates a blank of the maor replenish the dispensers. terial, preferably paper, from which the receptacle Another object consists in providing a recepor cup is to be formed, this blank being of a shape tacle of the character described having advanor form to provide the oppositely directed sectages of both the cylindrical and flat types pretors or keystone-shaped portions 1 and 2, a flange 20 viously used, the same being provided with a or extension 3 being formed on one longitudinal round normally open mouth portion and a body edge of the portion 1 while a flange or extension portion which is of substantially wedge-shape 4 is formed on the opposite longitudinal edge of tapering downwardly to provide a flat relatively the portion 2.- In forming the receptacle or cup wide bottom adapted to be engaged by the flnthe blank is adapted to be initially folded on the 25 gers when removing the terminal receptacle from transverse or horizontally extending line 5 and a stack and while using. as shown more particularly in Fig. 5 of the draw- A further object of the invention resides in ings the inner end of the flange or extension 3 on forming the receptacle or cup from a single piece the portion 1 extends beyond the fold point 5 to of material or blank adapted to be folded on 'a provide the section 6 merging with and forming 30 transverse or horizontal line to provide a body a part of the portion 2. Likewise the inner end portion with a closed bottom,- the sides of the of the flange or extension 4 of the portion 2 exbody being closed by folding edge portions of tends beyond the fold point 5 to provide the porthe material or blank, and securing said folded tion 7 merging with and forming a part of the edge portions to the body. portion 1 of the blank.

35 Still another object of the invention consists As previously stated in forming the receptacle in forming a receptacle or cup from a single or cup the blank is initially folded on the line 5 piece or blank' of material and folding the same to form a closed bottom 8 for the completed recepin a novel manner to provide a body portion .with tacle or cup and in this initial folding the portion a tightly closed bottom and side edges thereby 6 will extend parallel with the flange or extenpreventing leakage while the receptacle or cup is sion 3 and the portion 7 will extend parallel with in use. the flange or extension 4. The flanges or exten- With the above and other objects in view, sions 3 and 4 as well-as the portions 6 and 7 which will appear as the description proceeds, thereof are coated on one side with an adhesive my invention consists in the novel details of conas is shown in the drawings and when the blank 45 struction, and arrangement of parts, described in is folded the portions 6 and 7 vwill adhere to their the following specification and illustrated in the respective parallel flanges or extensions 3 and 4. accompanying drawings, and while I have illus- In folding along the line 5 the edge of the portion trated and described the preferred embodiments 1 not provided with the flan or xtension will of the invention, as they now appear to me, it en a e the opposed portion 2 a e the e 9 50 will be understood that such changes may be of 5, as Shown more P ly in Fig. 6

made as willfall within the scope of the 941- of the drawings, and the edge of the portion 2, not pended claim. having the flange or extension, will engage the In the drawings: opposed portion 1 along theline 10 of Fig. 5, as Fig. 1 is a perspective of a completed cup or shown more particularly in Fig. 6 of the drawreceptacle. ings.

, scribed the lower portion of the flange or extension 3 will be folded over the outer face of the portion 2 and secured thereto by the adhesive. The lower portion of the flange or extension 4 will be folded over the outer face of the portion 1 and secured thereto by the adhesive. It will be understood and seen that the portions 6 and '7 are folded with the flanges 3 and 4, respectively, and when the flanges or extensions arefolded and secured in position the portions 6 and 7 provide a tight closure adjacent the bottom of the receptacle or cup and the folding and securing of the flanges or extensions form tight seams at the sides of the receptacle or cup. As shown more particularly in Figs. 1 and 2 of the drawings the side seams extend at an angle from the true vertical with the bottom edges of the seams being directed inwardly towards the vertical center of opposed sides of the receptacle or cup, the lower ends of the flanges or extensions extending upwardly at an angle, as shown more particularly at 11 and 12 in Figs. -1 and 2 of the drawings. The angles at which the flanges or extensions are positioned aid in forming a tight closure at the bottom of the receptacle or cup. 7

From the above detailed description it is thought that the manner in which the receptacle or cup is formed from the blank of materialwill be clearly understood. In the folding of the blank and securing of the side edges, it will be seen that I have provided a receptacle having a round normally open mouthportion and a body portion which is of substantially wedge-shape tapering downwardly to provide a flat relatively wide bottom adapted to be engaged by the fingers when removinga terminal receptacle or cup from a stack thereof and whileusing. A cup or receptacle of this formation has the advantages of both the well-known types-of cylindrical and flat cups. My cup or receptacle is of a formation whereby a relatively large number. may be nested in a 'with the flngers will have a tendency to slide the terminal cup from the next cup in the stack thererelatively small stack. This is of particular advantage where the cups are to be dispensed from a dispensing machine and obviates the necessity of an attendant frequently replenishing or refilling. The terminal receptacle'or cup may be removed from the stack, as previously stated, by grasping the relatively wide flat bottom edge and in withdrawing the terminal cup from the stack and necessary compression caused by engagement by facilitating its removal. The overlapped and adjoining portions of the walls or portions 1 and 2 being'continuous and free from creases or folds serve as reinforcements tending to resist collapse or closing of the mouth portion. By forming my receptacle or cup of relatively light material and of a single blank or piece of material-the same may be cheaply made and by folding the blank on a transverse horizontal line as I have described a water-tight bottom is provided to prevent leakage. The formation of the portions 6 and 7, extending beyond the fold line of the blank also aids in forming a tight closure at each side of the-bottom to prevent leakage at the bottom adjacent the side seams.

Having fully described my invention what I claim as new and desire to secure by Letters Fatent is:-

A paper drinking cup having an open self-extended mouth and a downwardly tapered rounded body terminating in a wedge-shaped bottom, said cup being formed from a single piece of material folded on a medial transverse line to provide opposite wall portions, edges of the wall portions being overlapped and secured together, the overlapped edges of the wall portions providing longitudinal reinforcements throughout the length of the body, and at the sides thereof, the reinforcements being positioned on opposite sides of the medial fold line of the material.

- HERMAN CAREW.

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