US3352412A

US3352412A - Package for flexible material

Info

Publication number: US3352412A
Application number: US510898A
Authority: US
Inventors: Walter J Draving; Joseph E Nerz
Original assignee: MICRO MINIATURE PARTS CORP
Current assignee: MICRO MINIATURE PARTS CORP
Priority date: 1965-12-01
Filing date: 1965-12-01
Publication date: 1967-11-14
Anticipated expiration: 1984-11-14

Description

Nov. 14 1967 v W.J. DRAVING ETAL 3,352,412

PACKAGE FOR FLEXIBLE MATERIAL Filed Dec. 1, 1965 s Sheets-Sheet 1 F162. F'IGJ.

INVENTORS? WALTER J. DRAVING JOSEPH E-NERZ Nov. 14, 1967 w. J. DRAVING ETAL PACKAGE FOR FLEXIBLE MATERIAL Filed Dec. 1, 1965 FIGJO.

5 Sheets-Sheet 2 Him],

INVENTOR SI WALTER J. DRAVING JOSEP H E. NERZ Nov. 14, 1967 w. J, DRAVlNG ETAL 3,352,412

PACKAGE FOR FLEXIBLE MATERIAL Filed Dec. 1, 1965 5 Sheets-Sheet 5 INVENTORSZ WALTER J. DRAVING JOSEPH E. NERZ ATTYS.

United States Patent 3,352,412 PACKAGE FOR FLEXIBLE MATERIAL Walter J. Draving, Willow Grove, and Joseph E. Nerz, 7

The present invention relates to a package for receiving at least one length of flexible material therein and a package receiving stand for facilitating winding or removal of flexible material onto or from a package mounted thereon. More particularly the present invention relates to a novel package for enabling at least one length of continuous flexible material such as wire, thread or the like to be wound in the package with means thereon for impeding the free movement of the material therefrom; and a novel package receiving stand which allows easy winding or removal of the material when such is desired.

In packaging extremely fine wires for use in computer memory circuits or the like, inadvertent kinking of the wire may result in intolerable resistance changes or increased stresses which will permit work hardening thereof and easy breakage of the wire at the point of kinking. In addition, wire wound on a spool or sheave tends to loosen unless firmly secured and the natural resiliency of the wire tends to make the package of wire on the spool expand, causing snarls and the like to occur, which in certain instances may result in the discarding of the package thus wrapped in this manner.

Another well known packaging technique in the small diameter wire art is winding the wire on long and relatively thin blocks of, for example, Styrofoam, and securing the ends of the wire thus wrapped by tape or the like. Prior to using the wire packaged in this manner, it must be hung so as to remove any bends or kinks therein, which handling of course results in a waste of time and as a result is uneconomic. As may be imagined the abovedescribed packaging techniques are bulky and due to the fragileness of, for example, very thin wire, requires extreme care in handling.

With very flexible material such as darning thread or the like, a problem exists with the free end of the thread when the thread is wound on a spool. Thus many times the free ends of thread in a womans sewing drawer containing many spools of thread, become entangled when the loose end of the thread is allowed to move freely from the Spool.

In view of the above it is a principal object of the present invention to provide a novel package for flexible material such as wire, thread or the like wherein the flexible material is easily wound in the package and means are provided, circumscribing the portion of the package upon which the thread is wound, to impede the free movement of the flexible material out of the package.

Another object of the present invention is to provide a package for receiving and winding at least one length of flexible material therein, and wherein the package comprises at least one element having an annular periphery and a resilient member circumscribing the periphery of the element, connected to the element and having a portion thereof overlapping and radially spaced from the element to define a flexible material receiving pocket therebetween. In the preferred embodiment of the invention, the element above referred to has an extension extending radially a distance sufficient to cooperate with the overlapping portion of the member whereby free Patented Nov. 14, 1967 "ice movement of the flexible material from the pocket is impeded.

Still another object of the present invention is to provide a package for receiving at least one length of flexible material therein, which package may be vacuum formed or made on progressive dies and may be composed of an inexpensive plastic material for effecting economies in manufacture.

And yet another object of the present invention is to provide a package having the afore-mentioned qualities and particularly adapted for facilitating the removal of Wire from the package and avoiding kinks or the like therein.

Still another object of the present invention is to provide a package which due to its structure prevents flexible material such as wire from freely uncoiling and removing itself therefrom.

Another object of the present invention is to provide a package which permits direct removal of the flexible material contained therein and its use without any straightening prior to its use.

Another object of the present invention is to provide a relatively small package for receiving at least one length of flexible material therein, and having the qualities as heretofore described, which small diameter facilitates a reduction in shipping costs due to a reduction in the bulk size of the package.

Still another object of the present invention is to provide a package which may be reused upon removal of the material therefrom.

Another object of the present invention is to provide a novel package receiving stand for use in conjunction with a package of the present invention.

Still a further object of the present invention is to provide a package receiving stand which will permit the easy removal from and winding on of flexible material onto a package of the present invention mounted thereon.

Other objects and a fuller understanding of the invention may be had by referring to the following specification and claims taken in conjunction with the accompanying drawings in which:

FIG. 1 is a perspective view of a package adapted for receiving at least one length of flexible material therein, which package is constructed in accordance with the present invention;

FIG. 2 is a plan view of the package illustrated in FIG. 1;

FIG. 3 is an edge or profile view of the package illustrated in FIGS. 1 and 2;

FIG. 4 is an enlarged fragmentary sectional view taken along line 44 of FIG. 2;

FIG. 5 is an enlarged fragmentary sectional view of a portion of the package of the present invention illustrated in FIG. 4;

FIG. 6 is an enlarged fragmentary sectional view of a portion of the package shown in FIG. 4 and illustrating the removal of a portion of the length of flexible material contained interiorly of the package;

FIG. 7 is an exploded perspective view of the elements composing the package illustrated in FIGS. 1-6;

FIG. 8 is a schematic illustration of one means of storing or preparation for shipping a plurality of packages constructed in accordance with the present invention;

FIG. 9 is a fragmentary sectional view of another embodiment of a package constructed in accordance with the present invention;

FIG. 10 is a plan view of another embodiment of a package constructed in accordance with the present invention;

FIG. 11 is an enlarged fragmentary sectional view taken along line 11-11 of FIG.

FIG. 12 in a perspective view of the package illustrated in FIGS. 10 and 11;

FIG. 13 is a side view of another embodiment of a package constructed in accordance with the present invention;

FIG. 14 is a plan .view ofthe package illustrated in FIG. 13;

'FIG. 15 is an enlarged fragmentary sectional view taken along line 15-15 of FIG. 13;

FIG. 16 is a plan view of a package receiving stand constructed in accordance with the present invention and having mounted thereon a package of the present invention;

FIG. 17 is a side profile view of the apparatus illustrated'in FIG. 16;

FIG. 18 is a fragmentary sectional view taken along line 1818 of FIG. 16;

FIG. 19 is an enlarged fragmentary sectional View taken along-line 19-19 of FIG. 17; and

FIG. 20 isa fragmentary plan view ofa portion of the device illustrated in .FIG. 1 and its operation in conjunction with a drive means.

Referring now to the drawings, and especially 'FIG. 1 thereof, a package 10 having a least one length of flexible material 11 contained therein is illustrated.

In accordance with the invention, the package 10 is-provided with means to prevent inadvertent uncoiling and loss of the flexible material contained therein, while providing a tension on the flexible material as it is being removed from the package, which tension prevents kinking or snarling of the material as it is removed therefrom. To this end, the package 10 includes at least one element 12 having a core 13 including an upper disc shaped portion 13a connected to a peripheral upstanding wall 14 and an axis designated A which is substantially parallel to the wall. (See FIG. 7.) The package 10 also includes a member or cover 20 which when in place circumscribes and is connected to the core 13 of the element 12. As illustrated in FIGS. 4-7 the cover 20 comprises a disc shaped portion 20:: and a peripheral depending portion 21 which .circumferentially overlaps the peripheral upstanding wall 14 of the core 13 and is radially spaced therefrom (see FIG. 4) to define an annular flexible material receiving pocket 22 therebetween.

In order to close the pocket, the element 12 has an extension 15 extending radially a distance sufficient to overlie the pocket,22 and cooperate with the overlapping portion of the cover member 20 whereby freemovement of the flexible material from the pocket 22 is impeded. To

this end, the depending portion 21 of the cover member 20 is preferably resilient and in the preferred embodiment the lower terminal edge 23 of the depending portion 21 contacts the radial extension 15 of the element 12. In this manner the inherent springiness of the material of which .the overlapping or depending portion 21 is comprised aids in preventing the inadvertent removal or-uncoiling of flex ible material 11 from within the pocket 22 to the exterior of the package and at the same time-the pressure of the lower terminal portion 23 against the extension 15 causes a clamping-like action against the flexible material upon its removal therefrom. As a result, kinking and snarling is avoided.

Loading the package 10 with a flexible material is relatively simple and merely requires attaching one end 110 of the flexible material to, for example, the extension -15 by securing means, in the present instance a piece of tape 16 or the like. Thereafter the flexible material is wound about the peripheral upstanding wall 14 of the core 13, and the terminal end of the wire may be secured to the extension 15 by, for example, a clip 17. (See FIG. 2.) Even if it is undesirable to use a clip, the terminal end 11b of the wire maybe placed in the pocket and uponit'being desired for the terminal end to be removed from the pocket 22, upward finger pressure against the depending portion 21 permits the ,terminal end 11b of the flexible material to be removed therefrom.

When the package is to be utilized with a flexible material composed of a fine wire, for example a wire having a diameter of one thousandth (.001) to ten thousandth (.010) of an inch, means are provided to prevent hanging up of the wire between the disc shaped portion 20a of the cover 20 and the upper disc shaped portion 13a of the core 13. To this end, and as illustrated in FIGS. 46, the core 13 may be frusto-conical in shape and thereby form a radially protruding lip 24 at the upper terminus of the wall. In this instance, it is preferable that the wire be wound on the peripheral upstanding wall only to the radial depth of the tapered wall, i.e. to the point 25 illustrated in the drawing. In this manner, the chances of a fine Wire slipping between thecover 20 and the upper portion of the core 13 is substantially reduced.

For purposes of economy, both the element 12 and the cover 20 may be vacuum formed or made on progressive dies and-cofild be composed of a plastic material, such as cellulose acetate butyrate. However it has been found that vacuum forming may be preferable for economic reasons which include both the time consumed'in making the package and the type of material of which it is composed. Thus, any material which lends itself to this process and which permits at least the depending portion 21 of the cover 20 to have resilient qualities may be used. In addition, although the disc shaped portion 20a'of the cover 20 may be connected to the disc shaped portion 13a of the core 13 by any available means, including gluing or the like, if a plastic material is chosen Which may be heat sealed, 2. simple heat seal between the cover and the core is sufficient to connect the cover thereto.

For shipping and use by the consumer the package '10 is preferably formed withan aperture 27'l0cated on the axis A so that a plurality of packages 10 may be mounted on a rod 26 or the likefor permitting the user to merely pull on the terminal end of the flexible material 11, which of course causes rotation of the package about the rod 26. In addition, if the material of which the package is composed is a clear material, ready identification of the wire or other material contained therein is facilitated.

In the event it is desirable to package wires ofa large diameter or other-flexible material of a large diameter, a package 30 such as that illustrated in FIG. 9 may be provided, which package includes a core 33 having an upstanding peripheral wall 34, and a cover 40 superimposed and connected thereto with a depending portion 41 radially spaced from the peripheral upstanding wall 34 to thus define a pocket 42. With a package ofthis variety, it is unnecessary to provide a lip such as the lip 24 illustrated in FIGS. 4-6 as there is little chance of a large diameterflexible material slipping between:the cover and the core. It should be recognized that the package 30 would be particularly useful where the user requires .only small quantities or a relatively short length of flexible material to be available.

In the event that a larger quantity of flexible .material such as large diameter multiconductor wire or ,the like is requiredby the consumer, the package illustrated in FIGS. l0l2may be particularly usefuL'To this end, the package 110 comprises a pair of members each of which has a core 111 including an upstanding peripheral wall portion 112 and having a resilient depending wall portion 113 circumscribing the peripheral wall 112 and radially spaced therefrom so as to define an annular flexible material receiving pocket .114 therebetween. As illustrated in FIG. 11, the peripheral wall portion 112 of each core 111 is connected by a disc shaped wall .115 which is substantially perpendicular to the axis A of the package 110 and by placing the walls back to back and connecting them to each other a package 110 is formed having the ability to receive in thepocket 11 4 agreater amount of flexible material than is possible in either of the previously and heretofore described embodiments. As best illustrated in FIG. 11, each of the depending Walls 113 overlies the pocket and cooperates, in the present instance by mutual contact as at 116, with the corresponding mating wall 113. In this manner wire contained in the pocket is prevented from moving out of the pocket except when withdrawn through the point of contact 116 while the contact point impedes the free movement of the flexible material from the pocket.

With the ordinary spool of thread, it is oftentimes desirable to provide means to impede the removal of thread from the spool while preventing the unwinding of the thread from the spool as upon its being inadvertently dropped or to prevent snarling of the thread wound thereon of the spool is to be stored with other like spools. Thus in accordance with the present invention the package 210 illustrated in FIGS. 13-15 may be provided. To this end, the package 210 includes a core 213, in the present instance a spool, including an upper and lower disc shaped portion 213a connected to a peripheral upstanding wall 214 and an axis designated A which is substantially parallel to the wall 214. (See FIG. 15.) The package 210 also includes a pair of cover members 220 which when in place circumscribe and are connected to the core 213. As illustrated in FIGS. 13 and 15, each of the covers 220 comprises a disc shaped portion 220a and a peripheral depending resilient portion 221 which circumferentially overlaps the peripheral upstanding wall 214 of the core 213 and is radially spaced therefrom to define an annular flexible material receiving pocket 222 therebetween. As best illustrated in FIG. 15, each of the depending walls 221 overlies the pocket and cooperates, in the present instance by mutual contact as at 223, with the corresponding mating wall 221. In this manner thread wound on the spool and contained in the pocket 222 is prevented from moving out of the pocket except when withdrawn through the point of contact 223. Thus the contact point impedes the free movement of the thread from the pocket.

-In production usage, it may be desirable to provide means for facilitating the removal of the flexible material from the package of the present invention which means may also be useful in aiding the winding on the package of at least one length of flexible material. In addition it may be advisable, when the flexible material for example comprises extremely fine wire having very thin insulation thereon, to provide means to separate the depending portion of the cover member from the core element at the point at which the wire leads to the exterior of the package.

To this end in accordance with another feature of the invention and as illustrated in FIGS. 16 and 17, a package receiving stand 300, including a base 304- having upstanding package mounting means 301 connected thereto is illustrated therein. In the present instance the package mounting means 301 comprises an upright 302 connecting a horizontally positioned disc-shaped upper portion 303 for receiving a package 350, similar to the package illustrated in FIGS. 1-9.

As illustrated in FIG. 18, the package 350 includes an element 351 having a core 352 including an upper discshaped portion 353 connected to a peripheral upstanding wall 354, the upper discshaped portion 353 acting as a seat for the package when mounted on the disc 303 associated with the package mounting means 301. As described heretofore, the package includes a member or cover 355 which when in place circumscribes and is connected to the core 351, the cover comprising a disc-shaped portion 356 and a peripheral depending portion 357 which circumferentially overlaps the peripheral upstanding wall 354 of the core 351 and is radially spaced therefrom to define an annular flexible material receiving pocket 358 therebetween. In order to close the pocket, the element 351 has an extension 359, in the present instance circular in plan, extending radially a distance sufficient to overlie the pocket 358 and cooperate with the overlapping depending portion 357 of the cover member 355 to provide a deterrent against the free removal of flexible material from the pocket 358. For reasons which will become evident hereinafter, the depending portion 357 includes an upstanding wall 357a having an axial height greater than the height of the core 351.

In order to reduce the friction of the flexible material as it enters or leaves the package 350', the package receiving stand 300 comprising upstanding and spaced package tensioning or hearing mounts 305 and 306 including

posts

305a and 306a respectively. As illustrated in the drawings, the bearing mount 305 has an inwardly and radially projecting arm 307 to which is connected a rotatably mounted roller 308 which rides on the extension 359 of the package 350 to hold the package against the disc-shaped portion 303 of the package mounting means 301 as flexible material is extracted from the package.

In order to facilitate separation of the extension 359 to allow the passage of flexible receiving material such as wire into and out of the package, the bearing mount 306, in a like manner to the bearing mount 305, is provided with an arm 309 mounting deflection means, in the present instance a roller 310, thereon adapted to engage the extension 359 and deflect it downwardly thus creating a separation between the peripheral depending portion 357 and the extension 359. (See FIG. 19.)

In order to facilitate the mounting of the package 350 on the package mounting means 301, one of the arms, in the present instance the arm 309, is preferably movable out of the plane of the package, in the present instance by means of a torsion spring 311 :mounted about a screw 312 which pins the arm 309 to the post 306a, and is connected thereto. The spring 311 is wound in such a manner as to normally tend to bias the roller 310 into a vertical or elevated position as shown in dotted lines in FIG. 17. To retain the roller 310 in the horizontal position upon a package being mounted thereon, a latch 313 releasably secures one end of the arm 309' in the horizontal position upon depression of the same. As shown in FIG. 16, upon deflecting the latch outwardly, the torsion spring 311 causes automatic elevation of the roller 310.

In certain instances it may be desirable to utilize the package receiving stand 300 to facilitate winding of flexible material in a package mounted thereon. In such an instance, it is a simple matter, as illustrated in FIG. 20 to provide drive means 320 to frictionally engage a portion of the package, in the illustrated instance the outer periphery of the extension 359, to effect rotation of the package while holding flexible material under tension. In this manner the package receiving stand may be utilized for loading of the packages.

One feature of the package 350 illustrated in FIGS. l6l9 makes this package particularly adaptable for tight packing of a plurality of such packages for shipment without danger of inadvertent separation of the cover 355 from the extension 359 which would allow uncoiling of flexible material 11 therefrom. In packing, both the leading and trailing portion of the flexible material may be placed in the pocket 358. If packages are placed adjacent one another, in for example a box, and tightly compressed, the upstanding wall 357a of the depending portion 357 of the cover 355 will engage the lower surface of the extension 359 of an adjacent package 350 causing a light seal to be formed between the depending portion 357 and its associated extension 359. In this manner, during shipment, inadvertent uncoiling of flexible material from the pocket 358 is prevented.

Thus the present invention provides a novel package for flexible material such as wire, thread, or the like wherein the flexible material is easily wound in the package and means are provided circumscribing the portion of the package upon which the thread is wound, to impede the free movement of flexible material out of the package. In addition, the present invention provides a novel package receiving stand for facilitating the easy winding or removal of material onto and from a novel package of the invention.

Thus although the invention has been described with a certain degree of particularity, it should be understood that the present disclosure is only exemplary of the invention, and that numerous changes in the details of construction, and the combination and arrangement of parts may be made without departing from the spirit and scope of the invention as hereinafter claimed.

What is claimed is:

1. A package for receiving at least one length of flexible material therein, said package comprising: at least one element having a core including a peripheral wall and an axis substantially parallel to said peripheral wall; said package including a member circumscribing the periphery of said one element, connected to said one element and having a resilient portion overlapping and radially spaced therefrom to define a flexible material receiving pocket therebetween; said element having an extension extending radially a distance suflicient to overlie said pocket and to cooperate with said resilient overlapping portion of said member whereby free movement of flexible material from said pocket is impeded.

2. A package in accordance with claim 1 wherein said core includes a disc shaped portion connecting the peripheral wall and said member includes a disc shaped portion connected to said overlapping resilient portion, said discs in mating, superimposed relation.

3. A package in accordance with claim 1 wherein said core is frusto-conical in cross section defining a radial lip on the upper terminus of the peripheral wall.

4. A package in accordance with claim 1 wherein said resilient portion of said member contacts said extension of said element.

5. A package in accordance with claim 1 wherein said member has an upstanding peripheral wall connected to said resilient depending portion thereof, said wall of said member axially alignable with the Wall of said element.

6. A package in accordance with claim 5 wherein said extension has a resilient depending portion alignable with and having a terminus mating with the terminus of said resilient depending portion of said member.

7. A package in accordance with claim 1 wherein said core includes a spool.

8. A package for receiving at least one length of flexible material therein, said package comprising: at least one element having a core including an upstanding peripheral wall and having an axis substantially parallel to said peripheral wall, said core having a disc shaped portion overlying said upstanding peripheral wall and connected thereto; a member including a disc shaped portion connected to and superimposed of said disc portion of said core, said member including a resilient portion circumscribing the periphery of said core and overlapping and radially spaced from said upstanding peripheral wall to define a flexible material receiving pocket therebetween; an extension connected to said core, axially spaced from the disc shaped portion thereof, and extending radially from said axis a distance sufiicient to overlie said pocket and to contact said resilient overlapping portion of said member whereby free movement of flexible material from said pocket is impeded.

9. A package in accordance with claim 8 wherein said core is frusto-conical in cross section defining a radial lip on the upper terminus of the peripheral wall.

10. A package for receiving at least one length of flexi- 'ble material therein, said package comprising a pair of members each having a core including an upstanding peripheral wall portion, a resilient depending portion connected to and circumscribing said upstanding peripheral wall and radially spaced therefrom so as to define an annular flexible material receiving pocket therebetween, each of said cores including a disc shaped wall substantially perpendicular to the peripheral upstanding wall; said disc shaped Wall of one member being connected to and overlying the wall associated with the other of said members.

11. A package in accordance with claim 10 wherein each of said depending resilient walls overlies the pocket formed by the other and cooperates with the corresponding mating wall whereby flexible material contained in said pocket is prevented from moving out of said pocket.

12. A package in accordance with claim 10 wherein said depending resilient walls contact one another to thus impede the free movement of the flexible material as it is withdrawn from said pocket.

13. A package for receiving at least one length of flexible material therein, said package comprising: a spool including an upper and lower disc shaped portion connected to a peripheral upstanding wall, a pair of cover members connected respectively to said disc shaped portion, said cover members comprising a peripheral dependent resilient portion circumferentially overlapping said peripheral upstanding wall of said spool and radially spaced therefrom to 'define an annular flexible material receiving pocket therebetween, each of said depending walls overlapping a portion of the pocket and cooperating to impede the free movement of flexible material from said pocket.

14. A package in accordance with claim 13 wherein each of said depending walls has a terminus peripherally abutting one another.

15. A package receiving stand for a package as defined in claim 1 comprising: a base having upstanding package mounting means connected thereto and adapted to receive said package thereon, spaced upstanding bearing mounts having means thereon to engage a portion of said package to retain said package on said package mounting means, at least one of said means on said bearing mounts cooperating with said package to provide an opening between said extension and said resilient portion to permit free movement of flexible material from a package mounted on said package mounting means.

16. A package receiving stand for a package having a least one length of flexible material therein, said'pack-age comprising at least one element having a core including a peripheral wall, and a member circumscribing the -periphery of said one element, connected to said element and having a resilient portion overlapping and radially spaced therefrom to define a flexible material receiving pocket therebetween, said element having an extension extending radially a distance suflicient to overlie said pocket and to cooperate with said resilient overlapping portion of said members, whereby free movement of flexible material from said pocket is normally impeded: said package receiving stand including a base having upstanding package mounting means connected thereto and a shaped upper portion for receiving and mounting a pack-' age thereon, at least a pair of bearing mounts radially spaced from said package mounting means and including means to hold the package against said shaped portion as flexible material is extracted from the package, at least one of said means mounted on said bearing mounts. operative to deflect said extension relative to said resilient overlapping portion to define an opening therebetweenfor the free extraction and Winding onto of flexible material into said pocket.

17. A package receiving stand in accordance with claim 16 wherein said bearing mounts include upstanding posts and said means for tensioning and retaining said-package on said package mounting means comprises an inwardly and radially projecting arm having a rotatably mounted roller thereon for riding on the extension.

18. A package receiving stand in accordance with claim 17 wherein one of said rollers provides deflection means for causing depression of said extension relative to said resilient overlapping portion.

19. A package receiving stand in accordance with claim 16 including drive means to effect rotation of said package.

9 10 20. A package in accordance with claim 1 wherein said References Cited resilient overlapping portion includes an upstanding Wall UNITED STATES PATENTS i an greater f f fi 1,908,278 5/1933 Angell 206-59 x sai core w ere y axla pressure agalns sa1 wa causes 2,545,145 3/1951 Hoyle 2O6 59 X tight sealing of said resilient overlapping portion against 5 said extension. LOUIS G. MANCENE, Primary Examiner.

Claims

1. A PACKAGE FOR RECEIVING AT LEAST ONE LENGTH OF FLEXIBLE MATERIAL THEREIN, SAID PACKAGE COMPRISING: AT LEAST ONE ELEMENT HAVING A CORE INCLUDING A PERIPHERAL WALL AND AN AXIS SUBSTANTIALLY PARALLEL TO SAID PERIPHERAL WALL AND AN PACKAGE INCLUDING A MEMBER CIRCUMSCRIBING THE PERIPHERY OF SAID ONE ELEMENT, CONNECTED TO SAID ONE ELEMENT AND HAVING A RESILIENT PORTION OVERLAPPING AND RADIALLY SPACED THEREFROM TO DEFINE A FLEXIBLE MATERIAL RECEIVING POCKET THEREBETWEEN; SAID ELEMENT HAVING AN EXTENSION EXTENDING RADIALLY A DISTANCE SUFFICIENT TO OVERLIE SAID POCKET AND TO COOPERATE WITH SAID RESILIENT OVERLAPPING PORTION OF SAID MEMBER WHEREBY FREE MOVEMENT OF FLEXIBLE MATERIAL FROM SAID POCKET IS IMPEDED.