US 2366770 A
Description (OCR text may contain errors)
Jan- 9, 1945 z. P. coDwELl. 2,366,770
4 COLLAPSIBLE CONTAINER Filed Jan. 8, 1944 H011. EQ2.
7 P 4 2% f f '2 4f e/m :59 6-- t v3 .5 6.. Y v -616/ ,-6` 7.. n i y 7: *7 -v/ 6 ve/ w Zezw P. Coimyeu I @43 Z1 4 MA Patented Jan. 9, 1945 UNITED STATES PATENT OFFICE COLLAPSIBLE CONTAINER Zelma P. Cordwell, Glen Ridge, N. J.
Application January 8, 1944, Serial No. 517,479
This invention relates to a collapsible container and more particularly to a bellows type container with an improved closure as a part thereof,
Various types of receptacles generally available are manufactured in many sizes but whennot in use occupy 'considerable storage space which, therefore, limits their utility. ularly true of cheap disposable receptacles fabri- This is partie-- cated from paper, cardboard and the like, which are sometimes used for household purposes. Also, in such containers, 'simple and positive acting closure means have been lacking.
This invention-has as an object vthe provision of a collapsible bellows-like container or receptacle which requires a minimum of storage space when not in use but which `may be readily extended to receive a variety of materials. Another object is the provision of a collapsible receptacle which' is easily disposable together with the contents. Another object is the provision of a collapsible receptacle which may be employed to ad lows-like container which may be tightly closed i to prevent loss or spillage of the contents. A still further and particular object; of the invention is the provision of a couapsibie beuows-nke containerwhich has as a part thereof a unique and improved closure means, simple in construction but positive in its action. Other objects will appear as the description of the invention proceeds. A
These objects are accomplished in accordance with the present invention bymeans of an improved container consisting of a front and rear 4 extendsldown partly over the hexagonal side 'of wall connected'by a bellows or pleated element constructed so as to be closed on all sides ,except the top, said walls bearingnotches or slits -positioned-in-the face thereof so as to receive cooperating retaining or locking hooks cut into tabs which together with flaps of sullicient length to meet or preferably overlap at the greatest extension ,of thecontainer form a part of the front t and rear walls. In the preferred embodiment of the invention in order to strengthen the closure vided in that part of the flaps which are con. structed so as to fit over part of the side walls of the bellows element and in this instance provision is made for various extensions byv a plurality of notches or slits in the'y face ofthe aps..
Referring now to the accompanying drawing,
Figure 1 represents a plan view of identical front and rear walls with the closing flaps and locking means shown in the tabs in the simplest form. Figures 2 and 3 are plan views of the front and rear walls for a modified embodiment with the closingl flaps illustrating closure means for bothv wall surfaces and for reinforcing locking means on the side flaps which extend down over the upf per portion of the bellowselement. Figure 4 is a perspective view of the improved container,
with the flaps closing the top of the container and held in place in the front and rear walls and on the side flaps over the bellows element by the locking means more fully described hereinafter. In the' drawing, I illustrates identical front and rear walls ofthe container shown to the hexagonal in shape which is the preferred fo. m. `The' flap 2 of sufficient length to meet or overlap when the container is at its greatest extension is lsecured by creasing at the lines 3, 4 and 5 which when folded .in the closed position covers and closes the top of the container and extends down partly over the side of the bellows element. Tabs 6 forming a part of the Vflap 24 are adapted to extend a short distance over and across the front and rear walls I and are constructed .with locking or retaining hooks' 'l provided by merely cutting a hook into the paper, cardboard or other material from which the container is constructed to permit the engaging of the hooked portion of the tab in and with the slits 8 which preferably are constructed to slightly protrude at the top of the slit to'facil tf1-te engagement of the retaining hook 'I A plurality of slits in those portions of the flap rn f ne wall of the preferred construction which the container is illustrated by 9, These slits 9 may vary considerably in number and may be positioned at intervals over the entire-length of the 4flap in order to provide locking closuremeans at any extended position of the receptacle. Those opposite wall carrying' the slits are provided with ,f
locking or retaining hooks ttl cut into the aps apo proximately similar to those shown in tabs 6 and serve to engage the slits i9 so as to aord a more secure closure for the receptacle.;
The supporting base l i, may be constructed at the bottom of only the front and rear walls or all or part ofthe pleats forming the bellows elementv may likewise have this supporting base, a modification which may be desirable if the contents are heavy. The use of any supporting base, however,
is optional but it is of advantage when the container is used for garbage where some drainage is needed as provided by suitable perforations. The numeral l2 represents a plurality of joined pleats which forms the bellows element shown in Figure 4. In Figure 4.-, the side naps containing the slits 9 are shown as overlapping the side naps aseavro box. A specific and'important utility is that of a container for the disposal of waste materials or kitchen garbage. If used for waste paper the receptacle may be burned together with the paper and as a substitute for the conventional unsightly sink pan, it offers numerous advantages as a more sanitary means of garbage disposal. When used for this purpose, no dumping and wrapping of the l garbage in paper is required. Instead, the cheap,
containing the retaining hooks it, but if desired,
' 9 and in this position, 'the engagement of the retaining hooks ill with the slits il is somewhat facilitated.
The improved container may be constructed of any suitable material having proper strength and stiffness depending upon the specific utility for which it isconstructed. For example, it may be fabricated from heavy paper stock, cardboard, heavy gauge regenerated cellulose sheeting, cellulose' acetate sheeting or laminations of such materials to afford better stiffness and overall strength or sized and reinforced fabric materials. For many utilitiesit is also preferred that such materials be waterproofed and/ or greaseproofed, properties which may be readily obtained by coating or impregnating base materials such as suggested above with waxes and conventional greaseproofing lacquers. For economic reasons, particularly -when th-e improved receptacle is designed for The bellows element may also be perforated l with any desired number of holes at or near the bottom of the element to permit ready drainage of liquids where desired, for example; if the receptacle is to be employed for holding garbage.
In using and closing the container, it is pulled open from a flat, compact closed.position to the desired extent through vthe action of the bellows element, the contents placed in the interior and the container then closed by folding the aps 2 which form extensions lof the front and rear Walls down over the top and side of the container and then folding the tabs Glacross the face of the walls and engaging the retaining hooks 'l in the cooperating slits 8. In the more secure closure which is desirable for some purposes, the retaining hooks Il) are inserted into' the proper slits 9 after the side portions ofthe-naps are folded as indicated above.
The improved container has many diversified utilities such as storage of foods, clothing and other materials, since the adjustable features of the container combined with the improved closure means permits .space economizing packingy` When made of. heavy flexible materials and fitted with suitable handles, it may be employed as a sanitary, neat-looking container is simply closed The improved container is characterized by several important'advantages. When collapsed and not in use it is quite compact requiring only a minimum of storage space. It is yreadily adjustable to greater volume for receiving materials but again economizes space since it need only to be extended to the volume actually required for the added materials. It is cheap, strong and adapted for a wide variety of purposes. When used for garbage disposal, general sanitation is improved. A particular advantage resides in the unique closure means which provides positive and tighttting closing, thus avoiding loss or spillage of the contents'. The container may be fabricated from cheap materials such as paper, cardboard, sized fabrics and the like, so that it may be discarded along with refuse and waste materials at very low cost.
It is apparent that many widely different embodiments of the invention may be made without departing from the spirit and scope thereof; and,
' therefore, it is not intended to be limited except as indicated in the appended claims.
1. A collapsible container comprising front and rear walls connected by a pleated bellows element closed on all sides except the top, said walls carrying yas an extension at the top and side thereof, foldable flaps forming part of said walls and of sufficient length to close the top of the bellows element when at its greatest extension and extending partly downl over the side of said Aelement when folded, and foldable tabs forming a part of said flaps adapted to fold across the front and rear walls and carrying hook retainers, said walls carrying slits for engaging hook retainers whereby to provide a locking closure.
2. A collapsible container comprising front and rear walls connected by a pleated bellows element closed on all sides except the top, said walls carrying as an extension at the top and side thereof, foldable flaps 'forming a part of said walls and of sufficient length to close the top of the bellows element when at its greatest extension and exretainers adapted to engage the Vslits on the flaps on the opposite wall and foldable tabs forming a part of said flaps adapted to fold across the front Y walls carrying slits for engaging the hook retaincollapsible travelling bag, laundry holder or hat 1 and rear walls and carrying hookretainers, said ers in the tabs, whereby to provide a lsecurely locking closure.
ZELMA P. CORDWfELL.