US2396565A - Package - Google Patents

Description

c. E GARDNER PACKAGE Filed Dec. 24, 1943 Patented no. 12, 1946 2,396, 565

- PACKAGE Charles E. Gardner, Cuyahoga Falls, Ohio, assignor to Wingfoot Corporation, Akron, Ohio, a corporation of Delaware Application December 24, 1943, Serial No. 515,545 1 Claim; (Cl. 229-58) ber hydrochloride film although other synthetics, folded-over first and the'ears 1 folded over these such as cellulose derivatives, and polymerized maflaps. Regardless of whether the folds are made als, such as the heat-sealable copolymer of as shown in Fig. 2 in-or Fig. 3, the outer flaps I i vinyl chloride-vinylidene chloride or a plasand I3 are then folded over and united by any ticized polymerized vinyl chloride, etc, may be suitable adhesive.

used When the bag is completed, it may be flate except for the method of closing the bottom of gusseted bag is flattened for shipping. It is the bag. The lining material is not laminated shipped by the manufacturer in this flattened to the papercovering at the bottom because when condition and is not opened up until it is delivsuch a laminated sheet is sealed as here deered to a filling machine scribed and then folded over, the number of In this bag the layers of material across the thicknesses of lining and paper varies greatly area of the bottom arerelatively uniform. There over the area of the bottom from many overare two plies of paper over the whole surface,

lapping thicknesses at the seal to a single thickand, of course, where the flaps overlap there are ness of lining and paper along two of the oppoadditional plies which preferably cover the whole which Fig. 11s a view in perspective of the sealed, single ply of the lining material makes little difbut unfolded, bottom; Figs. 2 and 3 illustrate difference. ferent methods of folding the bottom; and Fig. 4 The lining of this bag is absolutely tight. The g y The body oft e bag is formed of a paper covtop of the bag may be sealed in a similar manare sealed together at the middle of one or both tom although the seal of the lining may be ends of the bottom s am by bringing the ed es identical. oi the sheet or sheets into face-to-face contact. w 1 1 1 1 eliminates intermediate IOIlgitudinal Seams A collapsed, two-ply gusseted bag, the outer which interfere with the formation of a simple, ply f which is composed f paper and t inner tight, heat-sealed seam across the bo of the ply of which is composed of an impervious, heatin the miner explamed in What scalable, synthetic material; the bottom of which sides (at the longitudinal seam 0389mm) contact and without-reentrant folds and (2) four applying heat Pressure the verlappmg uncreased rectangular flaps which are extensions titu s the outer of i and the seam 6 is formed as descnbed' the sides of the bag. :32 fla gs being fold i towhen the seal is produced m-tms triangular wardthe middle along the lines which define the ears of packaging material 1 are formed which bottoms of said walls. the side walls or the bag of e a e undersurface of these triangular and the bottom of the bag hem g folded flat with Portions of the may be united to the paper the back of the bag being uncreased and the front 395 althOughgenerally, the Paper flaps at the of the has be 3 uncreased except for a fold permany manner- These Paper flaps are designated one side edge to the other, the portion of the by her f r nce n merals I0. II, It. and I3. front below this fold being folded flat against the ter the lining has been sealed as describ d. portion above thisiold.

ears and the paper flap are fold- CHARLES E. GARDNER.

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