US931888A - Valved bag. - Google Patents

Description

J. RBANEY, JR. & J. A. MOANULTY. VALVED BAG.

APPLIOATION FILED MAY zo, 1908.

Patented Aug. 24, 1909.

2 SHBETB-SHEET l.

Wi h1 mozo I ff' mfww/ W wfg@ J @MM/@71S J. REANEY, JB. & J. A. MGANULTY.

VALVED BAG.

APPLIOATION FILED MAY 2o, 190e.

98 1 ,888. Patented Aug. 24, 1909.

2 SHEETS-SHEET 2.

provideia valve that Willautomaticall J'AIES BEANER-J'R., OFBHERWOOIL IND'DHN A. .lIcNULTYg'OE!BALTIMOREfMARYLAlNIi.

senses.

peaaeaamomaraem. .Patented Ang. a4', 1909,

Application filed May 20, 1908. Seral'No. 433,818.

.which the following isa specication.

:This invention relates lto improvements in valved bagsor-.sacks and has particular referencetodevices of this character whichv are iilled by means ofanozzle -thatis inserted .in

a-small valved. opening. 15

.The present invention has for its. obj ect .to .Improve the constructionof the valve structure-which closes the vlling :opening-,and to crate to close. said o ening. after. the: ing .nozzlehas meen-withdrawn lfrom .the bag.

.'.Anothenobjectds to provide a slide valve .that..Will `beautomatically operated'A by the separation of .the bag .walls to4 effect a closure of the filling o ening.

Another object of the .inventionV is to 'provide an: inside valve for .the .filling openings of the bag .thatiwill operate to close. thebag .openinglby thedactio'n .of .the material-de- .posited .in the bag.

e are aware that it has heretofore vbeen .proposed toprovide. slide valves for .the iillllng openings of bags, but such .-prior. structuresdiffer from oursin that Athey are formed to operate between .the .folds'or bends of the end ofthe bag and further that in such prior devices f .the slide is .not Y,automatically operated.

fBylneans of our invention .the'valve may belocatedat. any convenient portion of. a bag 40..

provided in the mere overlapped edges where no; folds .are present.

irrespective of foldstand .bends ands` may `-be .The :invention is illustrated in. theaccompanyingldravvings', in which,-

: Figure 1 .shows an exterior; .perspective view of. a complete, bag constructed infactherein .andina readiness foriilllng.

vvalve structure. -planV viewof the` bag .and valve structure,-

. trates. a vertical section .through the 'bagjfand "valved opening 50.

-. bag embodying the features of lour invention.

filling. Fig. 7 shows a v.dinal sides,2, are merely fo opy Fig. 6,`shows a vertical sectional view through .the bag-the filling o ening having anozzle entered therein and t e`bag being ready" for cross-section through the bag and valve of the modied form, and Eig. 8, shows an inverted plan view of lthe valve employed in the bag of the modified form. l

'.'The bag may be formed of any suitable material andthe lower end, 1, and opposite parallel sides, 2, may vary and differrmaterially from the construction shown, but in the present instance the said end is provided With creases, 3, and, 4, while the o osite longituled or turned inwardly to enable the bag tobe readily crushed flat vforstorage or shipment when em ty. y "lpheend, 5, of the bag is formed by the overlapp' g of the edges, 6, and, 7, offthe bag wall both of which. areV provided W1th` illing openings, 8, and, 9. T hese voverla ped edges are secured together crossWise of 'thef bag either by vfastening or stitching but at vone pointand adjacent the lling openings said overlapped edges are left free and disconnected, as shown in an exaggerated manner at 10, Fig. 3. rIhe particular shapeof the filling openings, 8, and, 9, is immaterial but in the form shown in Figs. 1 to 4 we prefer .that the same shall be circular in form. A slit, 11, is provided in the inner edge, 7, and this slit in the present instance extends ina direction rosswise of the bag and adjacent to or at one side of the filling opening, 9. The slide valve, 12, which may be formedof .any suitable material, preferably of aiiexible character, has one end, 13, secured to the Wall ofthe bag of which 'the inner edge or flap, isa part, while the opposite end, 14,

of. sa1d valve is passed through the slit, 11,

. yand'between the unsecured portion of 'the overlapped edges or flaps, 6, and, 7,-,the eX- tremetfree end, 14, of the valvev projecting .beyond the edge of flap, 7, as seen in Fig. 2. p A perforation, 15, is provided in the valve adjacent the attached end, 13, thereof, which when the bag is in the normal condition ready :for filling will register with the filling openings, 8, and, 9, in the overlapped edges or flaps.

the bag, said Wall-being provided with a fold, 1:6, to which the end of the valve is attached, and that portion of the valve that enters the slit, 1 1, has its opposite longitudinal edges It will thus be seen that the valve, 12, has one end attached to a movable Wallof held close against the inner surface of the outside fla so that the contents of the bag cannot wor beneath the valve at either of its longitudinal side edges.

When the bag is in readiness for use the valve will have a position so that its perforation, 15, will register with the filling openings, 8, land, 9, of the overlapped edges, 6, and, 7, of the bag and a iillmg nozz e, 17, may be inserted through said registered openings toi convey material into the bag. As the material falls into the bag and is deposited at the end, 1, thereof the walls will spread a part or bulge and this tendency increases as the filling operation progresses. When fthe' bag has received the predetermined quantityv of material the filling nozzle, 17, is withdrawn and immediately thereafter the internal ressure of the material will cause the wall) to which the kend, 13, of the valve is attached to straighten out and in do ing so draw the slide valve, 12, laterally between the overlapped edges and thus move the valve opening, 15, out of register with the filling openings, 8, and, 9, and edect a closure of the said o enings. By 'holding the opposite longitudual edges of the valve` against the outer flap and securing the perforated end, 13, while the free end is held between the flaps the valve will lie close around the filling 'openings of the bag and prevent the materia from escaping b working beneath the valve. After the va ve has thus autoopening hasan elliptical shape.

matically closed, the bag may be turnedover on its side orup-side-down, so as to appl a constant outward pressure of the materla in the bag against the valve to maintain it mclose contact with the bag Wall around the filling opening.

The bag' and valve structure illustrated in Figs. 5 to 8 inclusive is very similar in construction and operation to the valve hereto-` fore described and differs therefrom mainly vin the manner of holding the valve in position. In'this construetlon the lower end, y 18, is formed by the mere overlapping of the flaps, 19, and, 20, lwhich may be pasted,

' stitched or'seeured together in any suitable manner. 'The fiat. end, 21, Iof the bag is formed integrally with the sides or body and is free of exterior folds, while adjacent said end the side wall has the fold, 16, as in the bag. shown in Figs. 1 .to 4. The-filling open ing, 22, in the flat end may be formed by cutting out a portion of .the-material and making a circular or other shaped opening but in the form shown in Figs. 5 to 8 said inner surfaceof the fiat end, 21, We ably provide a guide or keeper,- 23, w 'ch in the resent instance has the form of a strip of exible material. This guide orv keeperV has .its o posite ends, 24, attached to the inner su ace of the flat end, 21, but between said attached ends it is free and disconnected.

' On the` referf A exible valve, 25, passes freely beneath keeper and'is provided with a perforation, 26, which, when the valve is in the normal lling position, will register with the filling opening, 22, in the flat end, 21,

the guide or and permit the passage of material into the bag. In the present instance the valve is formed from a sheet of suitable flexible material and has a rectangular shape and the perforation or opening, 26, has position nearer one end than the other. is slipped beneath the central loose portion of the guide or keeper, 23, and the end, 27, thereof which is nearest the perforation, 26,

4is secured to the movable wall of the bag.

By reference to Fig. 6 it will be seen that as thereinv shown the end, 27, of the valve may be attached to the fold, 16, in the side Wall while the opposite end, 28, of said valve which is at the opposite side of the erforation, 26, may be rovided with doub e folds, 29,Ll and, 30, mere y-for the purpose of shorteni'ng said 4end surface of the flat end, 21. -The extreme edge `of this end, 28, of the' valve lies flat against the flat end, 21, of the bag and is secured thereto in any suitable manner, preferably by pasting. -1t will thus be seen that the valve shown in Figs. 5 to 8 inclusive has its end attached to a movable wall of the bag while the perforated portion between its opposite ends is free.

The guide or keeper, 23, may vary in Width and the same may consist of a mere narrow strip of flexible material or have sufficient width to 'extend over or cover the greater portion of the imperforate end of the valve, 25, as seen in Fig. 8. In this latter form the keeper is also provided with an opening, 31, which registers with the filling opening, 22, in the fiat end of the bag and the valve slides between the kee er and the flat bag end when its perforate portion is moved out of register with the openings, 22, and, 31. The operation of this latter form of 'valve is precisely' like that of the valve shown in Figs. 1 to 4,-,the s Vreading-apart of the bag walls serving to raw the valve from beneath the` keeper and straighten it by doublmg and thereby .enabling 1t tol be laid flat against the inner 7 5 This valve vout at against the flat end, 21, and present t It will be Dotta' that 'in the bag Shown in.

Figs. 1 to 4 inclusive the lapped walls of the bag form a double thickness or double wall at that point and that the' slide valve has position on the inside -of the bag and is not vaccessible for operation from the exterior. It will also be noted that-one end of the slide valve is attached to the bag wall on the `inside of the bagand that the.' valve senese passes through a slit in the underlap ing wall and operates between the two wal sat the double-thick portion.

Having thus described our invention-what we claim and desire to secure by Letters Patent is,-

1. A collapsed bag having movable walls with a filling opening therein, a slide valve movable over said opening, and connections between the valve andvone of the movable walls to operate the slide valve by the separation of the walls.. i l

2. A bagl having a filling opening and -a slide valve also having .an opening which normally registers with the bag opening,-said valve being operated from one side by the action of the material de ositedwin the bag.

3. A bag having a fil ing opening7 a slide valve adjacent said filling openln and having an opening that normally registers with the filling opening,-said valve also' having an imper orate portion at one side of its opening and a connection between the valve and the bag for o erating the valve.,

4. A bag aving a filling opening,v a slide valve exposed to the interior of the bag and having an opening that normally registers 'with the bag opening and connections between the valve and the interior of the bag e lfor operating the valve.

5. A collapsed bag having a filling opening at one end thereof and a crease in 1ts wall adjacent said end, a slide valve on the inside of the bag adjacent said opening and connections between the said valve and one of the collapsed walls of the bag to automatically operate the valve.

6. A collapsed bag having a filling opening in one of its walls and a slide valve on the inner side of the wall at said opening and said valve having one end connected to a collapsed wall of the bag structure, and means on the inner side of the bag and between the connected end of the valve and the filling opening thereof for guiding said valve when p it is drawn by the separation of the bag walls.

7. A collapsed bag having aillin o ening and a slide valve on the inside o t e bag around said opening and having a perforated portion and an imperforate port1on,-said valve being attached to the collapsed ba wall adjacent the perforated portion an means for holding the valve against the inner surface of the bag whereby the separation of the valve walls will operate the valve.

8. A collapsed ba having a filling opening and a crease mits si e Wall, a slide valve having one end attached to the collapsed side wall 'adjacent said crease and its other end extendin beyond the filling opening of the bag, an crease and the filling openin for guiding the valve as itis drawn upon t e separation of the bag walls.

9. A collapsed bag having a double-walled ortion in one of its collapsed walls with a means .interposed between the ling opening in each wall portion, and a f valve between said'w'all portions and means for connectin the valve with the collapsed walls of the bag whereby to automatically opeate the valve by the separation of the wa s.

1o. A bag having a denne-Walled ortion with a lilling opening in each Wall an aslide valve having one end secured to the inside ofv the bag wall and its other end projecting between said double-walled ortion whereby the expansion of the bag will automatlcally operate the valve. f

11. A colla sed bag havmg two perforated walls one of w ich .underlaps the other and 1s exposed to the interior of t e baigl said underlapping wall being provided wit a slit ad] acent its perforation, and a slide valve projectin from .the inside of the bag through said s it and connected with the colla sed wall of the bag whereby the separation o the bag walls will cause the valve to operate between the two perforated-walls.

n testimony whereof we affix our signatures in presence of two witnesses.

JAMES REANEY, JR. JOHN A. MCANULTY. Witnesses: i

G. FERDINAND Voer, CHAs. B. MANN.

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