US2870955A

US2870955A - Bag

Info

Publication number: US2870955A
Application number: US519736A
Authority: US
Inventors: Charles V Brady; August F Ottinger
Original assignee: Bemis Brothers Bag Co
Current assignee: Bemis Brothers Bag Co
Priority date: 1955-07-05
Filing date: 1955-07-05
Publication date: 1959-01-27
Anticipated expiration: 1976-01-27

Description

Jan. 27, 1959 c. v. BRADY ET AL BAG 2 Sheets-Sheet l Filed July 5, 1955 Jan. 27, 1959 c. v. BRADY ET AL BAG 2 Sheets-Sheef. 2

Filed July 5, 1955 United States Patent O Charles V. Brady and August F. Ottinger, St. Louis, Mo., assigno-s to Bemis Bro. Bag Company, & LouiMo, a corporatio of Missouri i Application July 5, 1955, Serial No. 519,7 36 2 Claims. (Cl. 229--66) ply gusseted paper tube having a stitched end closure, the i bag being adapted tobe torn open along thelne of the needle holes madeby the stitching, and being forrned to` faciltate starting the tearing along the line of the needle holes. In general, in the case of a bag wherein the line of stitching along which the bag is ultimately to be torn is sewn at thebag factory, the bag tube is prepared is provided at the bag factory. The upper end of the bag to facilitate starting the tearing at one end of the line of t sttching by having a cut-out in at least one ply but in less than all the ples of the tube at one side` of thetube `in line with at least one of the outer folds of the gusset at said side of the tube and located on the line of stitching, the bag having means thereon indicating that tearing is In` to be started at said end of the line of stitching. the case of a bag wheren the line of stitching along which the bag is ultimately to be torn open is sewn after the filling ot the bag at the plant where the bag is packed, the bag tube is provided with means indicating where the stitching is to be applied, and is prepared with a cut-out in at least one ply` but in less than all the ples of the tube at one side of the tube in line with at least one of the outer folds of the gusset at said side of the tube and located on the line on which the stitching is indicated for application, the bag having means thereon indicating that tearing is to be started at said end of the line of stitching.

Other objects and features will be in part apparent and i in part pointed out hereinafter.

The invention accordingly comprises the constructions hereinafter described, the scope of the invention being indicated in the following claims.

In the accompanying drawings, in which several of various possible embodiments of the invention are illust trated,

Fig; l is a perspective view of a bag of this invention i of the type that is provided at the bag factory with the line of stitching on which the bag is ultimately to be torn open; t

Fig. 2 is an enlarged view of the lower right corner of Fig. 1 with parts broken away and shown in section;

Fig. 3 is a view of the lower right corner of the Fig. 1 bag as it appears when spread open flat, and prior to formaton of the end closure, parts being broken away;

is shown open, to be closed after the bag is filled at the bag packing plant. The bag comprises a rnilti-ply paper tube f orrned with gussets 5 at the sides. Three ples are shown tor the tube, .the outer ply being designated 7, the intermediate ply 9 and the inner ply 11. The bottom closure comprses a paper tape 13 folded around the end of the tube and a line of stitching 15. The closure may include attextile cord 17 (seeFig. 1) through which the stitching is driven. The needle holes made by the stitching are indicated at 19 in Fig. 2. The tape and stitching extend beyond the corners of the tube. i

To permt the portion of the tube outward of the line of stitching 15 readily to be utilized as a rip strip for ripping the bag open along the line of needle holes 19 made by the stitching, the bag tube is prepared with notches`21 in the intermediate ply 9 at one side of the tube. These notches 21 are located in line withand at the ends ofthe outer folds 23 of the gusset 5 at the said one side of the tube, and extend inward (upward) from the bottom end of the tube beyond the line of stitching 15. Each notch is shown as centered in respect to the respective outer gusset told 23 and the side margins of the notches, indicated at 25 in Figs. 2 and 3, are spaced laterally outward of the innert'old 27 of the gusset. suitable means such as indicated at 29 may be printed oh the [bag to indicate that tearing is tobe started at the end of the line of stitching where the notches are located.

notches to be readily separated from the remainder of the bag and to be grasped and pulled for utilizing the portion of the tube outward of the line of stitchng as a rip strip for rippng the bag open along the line of holesmade by the stitching. Since the notches are in the intermediate ply, they are concealed from outside the bag and present no openings for leakage of the contents i of the bag or sifting of the contents of the bag between ples. It will be understood that the principles of the invention are applicable to bags having more than three ples of paper, and that more than one ply may be provided with notches for making it easier to start tearing the bag open. It is also possible that only a single notch paper tube formed with gussets 35 atthe sides.

may be provided.

Figs. 4 and 5 illustrate a bag 31 havinga conventional` bottom closure generally designated 33 which is provided at the bag factory. The upper end of the bag is shown open, to be closed after the bag is filled at the bag packng plant. Like the bag 1, this bag comprises a multi-ply These gussets, however, are shown as staggered gussets. That is, the face and back of the bag are offset with the result that one portion 37 of each gusset protrurdes sidewise Fig. 4 is a perspective view of a bag of this invention beyond the other portion 39 of the gusset. are shown for the tube, the outer ply being designated 41, the intermediate ply 43 and the inner ply 45. The closure 33, as shown, comprises a paper tape folded around the end of the tube and a line of sttching driven through atextle cord like the bottom closure shown for the bag in Fig. 1. However, in this case, there is no notching out of either of the bottom corners of the bag. Instead, the bag tube is prepared with notches 47 in the intermediate ply 43 at one side of the tube and at the upper end of the tube. These notches are located at the upper ends of the outer folds 49 of the gusset 35 at said side of the tube and extend inward (downward) from the upper end of the tube beyond the line on which the upper end of the bag is to be stitcbed closed after filling. The bag Three ples t is provided with means 51 printed thereon for indicating where the upper closure stitching is to be applied, and the notches 47 extend downward beyond this line. Suitable means such as indicated at 53 is printed on the bag to indicate that the tearing is to be started at the end of thelne of s'titching where the notches are located.

.After the .bag shown in Figs. 4 and 5 is filled and stitchedplosed along the line indicated at 51, it is then akin to the bag shown in Figs. 1-3, except that the tearing open .is ,accomplished along the top of the bag instead of the bottomof the bag. The sane possibilities of modificationas aboyementond in regard to the Figs. 1-3 bag a'reralso applicable to the bag illustrated in' Figs. 4 'and 5.

Another possible modification in the case of the bag shown in Figs. 4 and 5 is 'that only one notch 47 might be provided; in linewi th onlyone of the outer folds of the gusset, Ihis beng particularly feasiblebeea'use the bag h asstaggefred 'gussets In this case, the notch would be pr xdedj jine With the outer fold 49 of the prot'uding p r ion??? oftheg s t, In View of theabove it Willbe seen that the several objects of the invention are achieved and other advantageous results attained. A

p As variou changes couldbe made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above descriptionzor shown in the acconpanying drawings, shall be in'terpreted as illustrative and not in a limiting sense.

W ai 1 A paper bag comprisinga multi-ply paper tube having at least three plies and formed with gussets at the sides, a closure at one end of the tube comprising a paper tape folded around the end of the tube and a line of sttchingtraversing said tape and tube, said tube being prepared to facilitate starting thetearing at one end of the line of Stitching by having a cut-out in at least one of the interrnediate 'plies of the tube at one side of the tube in line withandetending' transversely across at least one of the outer folds of the gus'set at said side of the tube 'and extending inward from said' e'nd of the tube beyond the line 'of stitchihg 't said side 'of the tube, said' tape extending outifrrn'the bag at the side Where said cut-out is located and constituting a rip strip which may be grasped and pulled to, separate a cornerportion of, the bag at the location of the cut-out from the remainder of the bag and to rip the bag open along the line of holes made by the stitching, and said bag having means thereon indicating that tearing is to be started at said end of the line of stitching.

2. A paper bag comprisiig a multi-ply tube having at least three plies and formed with gussets at the sides, a closure at one end of the tube comprising a paper tape folded around the end of the tbe and a line of stitching traversing said tape and tube said tubebeing prepared to facilitate starting the tearihg abone ena of the line of stitching by having two notches only ingan intermediate ply of the tube at one side of the tube, said notc'hes being at the ends of the outer f olds of the g'uset at the respective side of the tube, the notches extending transversely across said folds and extending inward from said end of thetubebeyond the lineof stitchingat said side of the tube, said tap extend ingiout; nem thebag atithefside where said notehes are lloated' eonstititig a rip strip. w lma e an ul t ra a rner portion of the bag a't the locationof the' notches from the reinainder of the bag and to rip tli'e'bg open along the line of holes made bythe 'stitc hinlg ad said bag having 'means thereon indiating that tea'ri'n'g" is to be started atsaid 'endof the line of s'ttchi'n g.

References Cited in the file of this patent UNITED STATES PATENTS