US3100569A - Bag package - Google Patents

Description

Aug. 13, 1963 J. WHITE 3,100,569

Filed Aug. 12, 1960 BAG PACKAGE 3 Sheets-Sheet 1 F|G.l. FIGZ. T2

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Aug. 13, 1963 Filed Aug. 12, 1960 FIG. 8.

Au 13, 1963 J. WHITE 3,100,569

BAG PACKAGE Filed Aug. 12, 1960 3 Sheets-Sheet. 3

F IG. 9. 53

1W ea 67 73 any 65 T] 93 L- United States Patent 3,100,569 BAG PACKAGE James White, Fremont, Califl, assignor to Bemis Bro. hag Company, St. Louis, Mo., a corporation of Missouri Filed Aug. 12, 1960, Ser. No. 49,188 1 Claim. (Cl. 206-57).

This invention relates to packaging, and more particularly to novel packets of bags.

Among the several objects of the invention may be noted the provision of novel packets of bags which enable successive bags to be conveniently filled and withdrawn from the packet one-by-one; the provision of such packets which are useful in improved filling systems for packaging merchandise such as potatoes, buns and the like; the provision of packets of this character which accelerate the filling of bags and minimize the necessity for manual operations; and the provision of packets of the type described which are simple and economical. Other objects and features will be in part apparent and 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 is substantially larger in diameter than openings ofbags 3 andhead 21 is onlyslightly larger in diameter than theopenings 15 ofbag 3. In addition,head 21 is smoothly rounded as indicated at 23 so thatopenings 15 of thebags 3 may be readily slipped thereover in removing the bags from the fasteners orsleeves 17. Thebags 3 are thus held in packeted assembly onfasteners 17, each bag being adapted to be removed from the. fasteners one-by-one in a filling operation described hereinafter.

FIGS. 3-5 illustrate a packet such as above described 5 used in a filling system in which potatoes designated P various possible embodiments of the invention are illustrated,

FIG. 1 is -a view in elevation, with parts brokenaway, of a packet;

FIG. 2 is an enlarged vertical section taken on line 22 of FIG. 1;

FIG. 3 is a plan view, with parts broken away, illustrating a filling system;

FIG. 4 is a section taken on line 4-4 of FIG. 3; FIG. 5 is a section taken online 55 ofFIG. 3; FIG. 6 is a view in elevation, with parts broken away, of a packet of this invention;

FIG. 7 is an enlarged vertical section taken online 7--7 of FIG. 6;' e i FIG. 8 is a fragmentary rear view of the packet of FIG. 6; e i i FIG. 9 is a plan view illustrating another filling system utilizing the packet of FIG. 6;

FIG. 10 is a sectiontaken on line -1010 of FIG; 9; and i FIG. 11 is a fragmentary view in elevation illustrating still another form of packet.

Corresponding reference characters indicate corresponding parts throughout the severalviews of the drawings.

Referring now to the drawings, a packet generally designated 1 is shown to comprise a plurality or stack of individual bags each designated 3. Bags 3 i may be made of any suitable material such as a heat-sealable plastic material. As shown, eachbag 3 has afront wall 5 and aback wall 7 joined along the bottom thereof byfold 9, seamed together at the sides byheat seals 11 and free of one another at the top thereby forming amouth 13. Each bag has a pair ofopenings 15 laterally spaced from one another and from the sides of the bag and located adjacent the corners of the bag at themouth 13 of the bag.Openings 15 are of relatively small diameter and extend through thefront Wall 5 and theback wall 7 of each bag '3.

Fasteners 17 extend throughopenings 15 of the bags to hold them in packeted assembly. Each fastener is tubular, comprising a sleeve composed of any suitable material such as a rigid plastic material. Each sleeve has ahead 19 at the inner end thereof and asecond head 21 at the outer end thereof, these heads serving to retain thebags 3 on the sleeves. As shown,head 19 are packaged in thebags 3. At 25 is generally designated an endless conveyor having anupper reach 27 and alower reach 29. Theconveyor 25 is supported by a frame havingside members 31 and 33 in which the conveyor rolls are journalled as indicated at 35. Theconveyor 25 travels in the direction indicated by the arrow in FIG. 3 (toward the right) and thus carries the potatoes P past a number ofstations 37, a quantity of potatoes being diverted to each station byboards 38. Eachstation 37 includes ahopper 39 supported by the horizontalleg 41 of an angle bracket generally designated 43. Thevertical leg 45 ofangle bracket 43 is fastened toside member 33 as indicated at 47. A pair ofcantilever rods 49 is carried by thevertical leg 45 ofangle bracket 43 withfree ends 51 thereof extending out under the hopper. Apacket 1 ofbags 3 is suspended onrods 49 under eachhopper 39, therods 49 being received in and extending through thesleeves 17 of thepacket 1. e

In the filling operation, thefront wall 5 of theoutermost bag 3 ofpacket 1 is pulled out underhopper 39 by the operator so as to open wide themouth 13 of the bag 3 (see FIG. 4).' In thus pulling out thefront Wall 5,front 'wall 5 of thebag 3 is slipped over therounded heads 21 fromsleeves 17 and ontorods 49, theback wall 7 ofthe bag'3being retained onsleeves 17 behind theheads 21 thereof. With thebag 3 in this position, potatoes are fed into thehopper 39 and fall into thebag 3 through thebag mouth 13 to fill the bag. The filled bag is then removed from thepacket 1 androds 49 for further operations by pulling out theback wall 7 of the bag fromsleeves 17 overrounded heads 21 onto rods 49 [and pulling front andbrick walls 5 and 7 of the bag off therods 49 at the outer or free end of the rods. This operation is repeated to fill eachindividual bag 3 and remove the filled bags from the packet one-by-one.

FIGS. 6-8 illustrate a form of the invention in which apacket generally designated 53 is shown to. comprise a plurality of individual bags each designated 55. These bags may be made of any suitable material suchas a heatscalable plastic material. As shown, eachbag 55 has afront wall 57 and aback wall 59 extending beyond the upper edge of thefront wall 57 to form aflap 60.Front wall 57 andback wall 59 are joined along the bottom thereof byfold 61, seamed together at the sides byheat seals 63 and free of one another at their upper ends to form amouth 65. Intermediate themouth 65 and the upper edge offlap 60, backWall 59 has a pair ofopenings 67 therein laterally spaced from one another and from the sides of the bag. Theseopenings 67 are of relatively small diameter. Extending from each of theopenings 67 to'the upper edge offlap 60 of theback wall 59 of eachbag 55 is a line ofperforations 68. These provide lines of weakness fromopenings 67 to the upper edge offlap 60.

Received in and extending throughopenings 67 ofbags 55 are a pair offasteners 69 composed, for example, of a rigid plastic material.Fasteners 69 also extend through a pair ofopenings 70 in abacking member 71 which backs theflap 60 of thebackWall 59 of the last to be removed from the packet 53' one-by-one in the filling operation hereafter described.

FIGS. 9 and 10 illustrate thepacket 53 of FIGS. 6-8 used in a filling system for packaging merchandise such as hamburger buns, for example, in thebags 55. As shown,packet 53 ispositioned on atray 79 of a bagdistending apparatus such as that shown in US. Patent 2,673,016 dated March 23, 1954, for example, withbackin'g member 71 on the bottom.Tray 79 is pivoted at its left end, as indicated at 81, and is biased to swing upward by aspring 83. The right end of the packet engages atongue 85 constituted by the upper flange of achannel member 87.Funnels 93 are provided for guiding items, such as :bu-ns, into the bags. As will be apparent from U'.S. Patent 2,673,016, the disten'ding apparatus includes means for blowing air into each bag for opening it.

In the filling operation, thefront wall 57 oftheupper bag 55 of packet '53 is separated from theback wall 59 to open the mouth 6 5 by blowing air into the bag (see FIG. Next a quantity of buns traveling along a conveyor (not shown) is guided byfunnels 93 into the openedbag 55. After theuppermost bag 55 has been filled, it is removed from thepacket 53 by'pulling it offtray 79 to the left;Flap 60 tears on lines ofperforations 68 for separation of the bag fromfasteners 69. The operation isthen repeated successively to filland'remove bags 55 from the packet 53- one-by-one. It will be understood that the filled bags may then be placed on another con- 1 be utilized to package various items of merchandise such as various types of merchandise including shirts, sheets and the like as well as other types of goods.

FIG. 11 illustrates another form of packet generally designated 97.Packet 97 corresponds generally topacket 53 except that instead of having lines ofperforations 68, eachbag 55 ofpacket 97 has a line ofperforations 99 extending transversely acrossflap 60 adjacent the upper edge of thefront wall 57.Pacekt 97 may be utilized in the same manner aspacket 53 except that in removing each bag from the packet after filling, the bag is separated fromflap 60 along line 99an'dflap 60 of each bag is thus retained on fasteners 69.,

In view of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.

As various changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limitingsense.

I claim: I

A packet comprising a stack of open-mouth plastic bags, each bag having a front wall and a back wall, the back wall of each bag having an upper end portion extending beyond the front 'wall at the month of the bag, said upper end portion of the back wall having an upper edge extending straight across the bag and the front Wall of each bag having an upper edge extending straight across the bag for the full width of the bag below and parallel to the upper edge of. said upper end portion of the back wall, each bag having a pair of openings in said upper end portion of its back wall adjacent the upper corners thereof and above the upper edge of the front well, said bags being stacked with their edges substantially in register and with said openings substantially in register, a relatively rigid ibacking member backing the back wall of the last bag ofthe stack and having a Width greater than the distance between said openings, a pair of fasteners extending from said backing member through said openings and having heads at their forward ends larger than said openings for holding the bags in packeted assembly on said fasteners and on the baok ing member, the front -wall of each bag being free of the fasteners and each bag in the packet being free of the other bags in the packet apart from said fasteners, and each bag having lines of weakness ibetween the openings in its back wall and the upper edge of said upper end portion of its back wall.

References Cited in the file of this patentUNITED STATES PATENTS 3 1,107,114 Rose Aug. ,11, 1914 1,197,822 Harbe:ck Sept. 12,1916 1,524,537 Clarke Jan. 27, 1925 1,657,737 Bogren Jan. 31, 1928 11,713,341 Kroemer May 14, 1929 1,883,108 Thompson Oct. 18, 1932 2,010,994 Irmscher Aug. 13, 1935 2,080,092 Philippi May 11, 1937 2,296,163 Hartman Sept. 15, 1942 2,509,320 Smith et a1 May 30, 1950 2,790,591 Rosen Apr. 30, 1957 2,817,432 Grigsby Dec. 24, .1957

, 2,851,838 McIntyre et al. Sept. 16, 1958 2,871,891 La-u Feb. 3, 1959 2,956,674 Weil by 0'61. 18, 1960 2,962,157 Meister Nov. 29, 1960 3,008,569 Murch Nov. 14, 1961 3,021,947 Sylvester Feb. 20, 1962

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