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Publication numberUS931887 A
Publication typeGrant
Publication dateAug 24, 1909
Filing dateApr 1, 1908
Priority dateApr 1, 1908
Publication numberUS 931887 A, US 931887A, US-A-931887, US931887 A, US931887A
InventorsJames Reaney Jr, John A Mcanulty
Original AssigneeJames Reaney Jr, John A Mcanulty
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 931887 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Patent Aug. 24, 1909.





msnm. n. mw co. mom-mmanpnsns. wAsl-lmaron. n c.




To all whom it mayconcern:4

Be it known that we, JAMES REANEY, J r., and JOHN A. MCANULTY, both citizens of the United States, residing, respectively, at Sherwood, in the county of Baltimore and State of Maryland, and Baltimore city, State of Maryland, have invented certain new and useful Improvements in Bags, of which the following is a specification. Y

This invention relates to improvements in bags or sacks and has particular reference to bags or sacks of that class in which all manual or machine operations necessary in closing the bag may be completed prior to the filling of the bag.

Prior to our present invention bags have been constructed in such a manner as to provide a small valved filling opening therein prior to or during the operation of stitching or pasting thewalls of the bag together. In such devices the bag is then filled by means of a suitable nozzle which is inserted through the valved opening and after lling, the bag is usually turned on its side or upside-down so as to cause the weight of the contents to press the walls of the valve together and thus effect a seal of the valve or only opening therein.

Vhile a number of patents have heretofore been granted for devices of this character, little or no information is obtained from them as to the method of withdrawing, or removing the contents, but in practice, the methods employed are to tear the bag open, as in the case of paper bags, thus entirely destroying the bag, or, to effect an opening at a point remote from the valve, by rupturing the stitches or by cutting or untying bag strings. In one case the bag is a total loss, in another case the ripped seam must be restored by hand or a machine operation, which adds to the cost, before the bag can be restored to its former condition ready for refilling, or the string or tie is cut, lost or thrown away, requiring a new string and a retying of the bag. In the rupturing operation of the seam, the bags are often torn and after passing through this operationseveral times, they become a loss. The bag is also often cut in removing the string and thus damaged and there is considerable loss of capacity through contracting and tying a bag.

Our present invention therefore has among its objects to provide a bag with a valved lling opening at any desirable point in the Specification of Letters Patent.

Application led April 1, 1908.

Patented Aug.' 2a, 1909.

Serial No. 424,633.

bag and to further provide a discharge opening that is independent of the filling opening and which may be closed prior to the filling operation by a detachable securing device secured to the walls, at, or adjacent to, said opening.

Another obj ect of the invention is to provide a general utility bag, which can be used as a valve bag, but also can be filled in the ordinary manner, having as a part of it, ready means for closing and opening it, the closure being so constructed as to securely retain the contents when closed, and which can be easily opened without injuring or de stroying the bag or fastening.

Another object of the invention is to provide a detachable fastening for the discharge opening of a valve bag which may be held securely together by the internal pressure of the contents against the bag wall as said contents are filled into the bag through the valved filling opening.

Another object of the invention is to provide an improved valve structure for bags, and a further object is to provide a bag with a valved filling opening, a detachably secured discharge opening and a valve structure at said discharge opening to prevent leakage.

The combination of a bag with a valve filling opening at one point and a detachably connected discharge opening at another point in the bag, is one that effects economies both as to the bags themselves, as well as in the lling and discharge operation.

Heretofore, bags with valved filling openings have been provided, but in all cases within our knowledge, the bag or fastening must be subjected to a tearing, ripping, cuttingor untying operation to enable the contents to be discharged, as the discharge cannot be effected practically through the valved filling opening. By means of our invention however, the filling of the bag may be accomplished through the valved opening while the discharge may be easily effected through a separate and detachably secured opening, without any injury or loss to either the bag or fastening.

l/Vith these and other objects in view, the invention is illustrated in the accompanying drawing, in Which,-

Figure l, illustrates, a side elevation, of a bag constructed in accordance with the inv openings.

Vention,-the valved filling opening being at the bottom of the bag and the detachably secured discharge opening at the upper end thereof. Fig. 2, shows a perspective view of the discharge opening of the bag. Fig. 3, illustrates the securing device, detached from the bag, which is employed to hold the bag closed at the discharge opening. Fig. 4, shows a vertical section through the valved discharge opening of the bag, the walls forming the same being disconnected. Fig. 5, illustrates a vertical section. through the valve structure forming the hlling opening of the bag-the section being taken on the line 5-v-5 of Fig. l). Fig. 6, shows that end of the bag in which the valve is formed with a portion of the bag wall broken away and a filling nozzle inserted through the valve. Fig. 7, illustrates a vertical crosssection through the bag at a point between the valved openings or slits,-the sectioiL being taken on the line 7 7 of Fig. 9. Fig. 8, shows an end of a lled bag-the wall being broken away to illustrate the overlapped flaps close together to seal the valve slits or openings, and Fig. 9, illustrates a bottom plan view of the overlapped valve iiaps adjacent the filling openings.

1t is to be understood that the bag structure between the ends may be formed in any suitable way and of suoli material as will best suit the purpose for whichthe bag is to be used. ln the present instance the two longitudinal sides, 1, of the bag are closed While both ends, 2, and, 3, are provided with openings. The end, 2, is formed in the present instance by the overlapped flaps, el., and, 5, both of which are continuations of the fabric which forms the longitudinal sides of the bag, as clearly seen in Fig. 7.. After these Yflaps have been turned inwardly toward each other and overlapped, they are secured together' by paste or by rows of stitches, 6. The iilling opening of the bag is formed in these overlapped 'flaps and comprises two spaced apart cross slits or openings, 7, and, 8.

By reference to the drawing it will be clearly seen that the filling slits or openings in the flaps are not in register with each other but that the slit, 7, in theouter flap, l, has position in a vertical plane to one side and in advance of the slit, 8, in the 'llap, 5. These two flaps, 4, and, 5, are however close against and in direct contact with each other so that when internal pressure caused by the weight of the material on the interior of the bag is applied to the end, 2, of the latter the two flaps will be drawn or seated close together and thus close thc slits or By this arrangement it will be seen, the Hap, 4, will seat over and close the slit or opening, 8, while the flap, 5, will in like manner cover the slit or opening, 7.

By reference to Fig. 6 it will be seen that a filling nozzle, 9, may beinserted through the slit or opening, 7, in the outer flap, 4, thenl projected laterally fromv said slit and entered into the slit or opening, 8, inthe inner flap, 5, and thus enter the interior of the bag. it will also be seen that both slits or openings are guarded by a wall at each side thereof and a very effective seal is thus provided upon the withdrawal of the filling nozzle.

While the filling openings in the present instance are shown at one end ofthe bag, it is obvious that they may be formed in the bag wall at any desired location. It is also obvious that the spaced apart lilling openings may be formed at any point where two thicknesses of fabric are arranged so as to lie close together. During the iilling of the bag the valved filling openingis uppermost and after filling, it is preferably turned endfor-end or upside-down so as to cause the weight of the contents to rest upon and-press the innermostl flap or layer of slitted fabric outwardly thereby eifectually closing the openings or slits and preventing the escape of the contents. The valved discharge opening of the bag is, in the present instance, located at the end, 3, and should be of suiiicient size to permit the rapid discharge of the contents. ln order that -this discharge point may be readily opened or closed without ripping, tearing, cutting or unt-ying strings and thus permit a repeated use of the bag without liability or damage thereto, we have provided a detachable fastening device at said bag end, 3, which will now be described. The opposite marginal edges of the discharge opening areprovided with inturned folds or flaps, 10,and, 1-1, and a pocket or recess, l2, is formed between said flaps, which pockets extend longitudinally with respect to said marginall edges. This form of device at the discharge opening enables us to provideinwardly-projecting flexible valve strips, 13, at the discharge opening which serve a useful function as will presently be described.

At the corners the end, 3, of the bag in the present instance is provided with a row of stitches, 14, which extend through and secure the two walls of the bag together at that point. These stitches are preferably run in an inclined direction from the longitudinal sides, 1, of thevbag and terminate at the marginal edge of the discharge opening thus preventing the formation of apocket or trap-like space at the corners of the bag at each end of the discharge opening. They also form convenient handles by which the bag can be lifted.

A wire structure extends through the pockets or recesses, 12, andy in the present instance these structures comprise a plural.`

ity ofwire rods, 1.5, 16, and, 17', at one side ol the opening and, 18, 19, and, 20, at the yopposite side of said discharge opening.

The rods, 15, and, 18, are pivotally connected at one end by means of interlocking eyes, 21, while at the other ends said rods are provided respectively with an eye, 22, and a hook, 23. The rods, 16, and, 19, are likewise provided res ectively with an eye and a hook. The hoolis, 23, on rods, 18, and, 19, eXtend'or project laterally toward the eyes, 22, so that when the rods are drawn together the hooks which project through an open ing, 24, in the pocket, 12, may be engaged with the eye, 22, which also projects through the pocket wall. The end of rod, 17, is provided with a hook, 25, while the end of rod, 20, is curled to form an eye, 26, both of which have position at one end of the discharge opening adjacent the upper end of the row of stitches, 14.

Prior to the filling of the bag through. the valve opening the discharge opening thereof will be closed,-the operation being simple and consisting first, in passing the hook, 25, through the eye, 26, then after this is done the rods at opposite sides of the bag opening will be drawn close together and the hooks, 23, at one side engaged with the eyes, 22, at the opposite side of said opening as clearly shown in Fig. 3.

The fastening of the rods effects a mechanical closure of the discharge opening and the bag is then in readiness for refilling through the valved opening. In iilling, the bag is turned with the discharge end, 3, downward so that the material entering through the valved opening, 9, will be deposited at the end of the bag adjacent the securing rods. As the material drops into the bag, it will cause the flexible valve strips, 13, which lie close together when the rods are locked, to turn over on one side and thus guard the outlet to prevent the contents of the bag from working out through the discharge outlet between the secured rods. The rods, when fastened., are in parallel lines and being rigidly secured are brought into such close proximity as to pinch the material between them, thus forming a closure, while the inturned iiaps, form a valve at said closure to prevent the escape of the contents.

As the filling of the bag rogresses, the walls of the latter will be bu ged outwardly and gradually increase the tension of the hooks, 23, on the eyes, 22, and thereby prevent their accidental disengagement.

Having thus described our invention what we claim and desire to secure by Letters Patent is- 1. A bag having a detachably secured valved opening at one end for the discharge of material therefrom and an independent valved filling opening-the valve structures at both openings being sealed by the internal pressure of the bag contents.

2. A bag having a discharge opening with a valve structure for closing the same and also having a wall with a double thick portion with non-registering filling openings in each thickness thereof.

3. A bag having a valved filling opening in one end, a discharge opening at the opposite end, mechanical means for detachably closing said discharge opening and a valve structure at said discharge opening.

4. A bag having a discharge opening with means for detachably closing the same and also having a valve structure adjacent said detachable means, said bag also having overlapped iaps each with a filling opening and said flap openings being spaced from and out of register with each other.

5. A bag having a discharge opening with detachable means for closing same and avalve structure at said opening and also having overlapping ileXible iiaps which are secured together and each flap being provided with a iilling opening,-the opening in one flap being exposed on the outside of the bag and the opening of the other flap being exposed on the inside of the bag.

6. A bag having overlapping inner and outer flexible flaps which are secured together and each iiap having a slit therein,the slit in the outer flap being covered on its inner side by the inner flap and the slit in the inner flap being covered by the outer flap.

7. A bag having a double thick portion with iilling opening in each thickness and said portions being secured together entirely around said opening.

In testimony whereof we afliX our signatures in presence of two witnesses.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2596807 *Apr 5, 1949May 13, 1952Electrolux CorpSelf-sealing bag for separating dust from an air stream
US2596808 *Apr 6, 1949May 13, 1952Electrolux CorpSelf-sealing receptacle for separating dust from an air stream
US5487470 *Dec 30, 1994Jan 30, 1996Puff Pac Industries, Inc.Merchandise encapsulating packaging system and method therefor
Cooperative ClassificationY10S383/906, B65D31/147