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Publication numberUS2457043 A
Publication typeGrant
Publication dateDec 21, 1948
Filing dateJun 14, 1947
Priority dateJun 14, 1947
Publication numberUS 2457043 A, US 2457043A, US-A-2457043, US2457043 A, US2457043A
InventorsRalph Histand Albert
Original AssigneeRalph Histand Albert
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Lunch box
US 2457043 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

Dec. 21, 1948. HlSTAND 2,457,043

LUNCH BOX Filed June 14, 1947 2 Sheets-Sheet 1 31' INVENTOR.

- f lbertmfistand, $241M 7 AW Dec. 21, 1948. A. R. HISTAND 2,457,043,

' LUNCH Box Filed June 14, 1947 2 Sheets-Sheet 2 Patented Dec. 21, 1948 UNITED STATES PATENT OFFICE LUNCH BOX Albert Ralph Bistand, Oroyden, Pa.

Application June 14, 1947, Serial No. 754,720

1 Claim. 1

-My invention has general reference to boxes and analogous containers for the storage and carrying of food and drink; while itrelates more particularly, to the form or type thereof including cooling means for the preservation and contaminative protection of food and drinks against deterioration.

Devices of the type referred to, while somewhat satisfactory generally, possess one pronounced disadvantage in that they fail to be fully effective for the protection of foods susceptible to quick contamination and rapid spoiling such as lunches carried by workers and others. Many attempts. have heretofore been made to furnish a sanitary and eflicient lunch box with varying degrees of satisfaction, such as by insulating the lunchbox, or by providing the same with means for the storage of a suitable refrigerant therein; and, thev and which includes a removable container for the sealed retention of an ice-cube or cubes, such as are conventionally produced in the freezing-unit of household refrigerators.

A further object of my invention is to provide a lunch-box of the species indicated in the preceding paragraph in which one or more removable ice-cube containers are usable, and/or each of such container embodying means whereby said containers or containers is or are positionally adjustable in the lunch box.

With the above stated and other objects in view as well as incidental advantages, my invention essentially consists in certain features of construction and combinations of parts, which are hereinafter fully described and, more particularly, recited in the concluding claim.

In the accompanying drawings:

Fig. 1 is a perspective view of my improved lunch-box" in closed position.

Fig. 2 is a similar view with the main or hollow top closure open.

Fig. 3 is a corresponding view to the preceding figure, but showing an inner or auxiliary closure in semi-open location.

Fig. 4 is a longitudinal vertical section through the improved lunch-box of my invention.

Fig. 5 is a cross-section of the same taken approximately as indicated by the broken line and arrows 5--5; and

Fig. 6 is a perspective view of the removable ice-container, hereinafter fully described, with the cover therefor elevated.

In describing the embodiment of my invention shown in the drawings, like terms and characters of reference will be employed for the purpose of ease in understanding the several views; but it is to be understood each such term is intended to embrace all reasonable equivalents which perform the same function for an analogous purpose.

Referring more in detail to the drawings the improved lunch-box of this invention comprises a conveniently rectangular body portion 6 defined by hollow side, end and bottom walls I, 8, 9 respectively, each of which includes an interfltted sheet of insulation or analogous material III; while it is to be observed the body-portion 6 has the inner-surrounding upper edge beveled at H for snug seating-reception of the complementally shaped edge I! ofan auxiliary-closure ii of like formation and appropriate dimensions; said closure I! being movably attached to one side wall of the body-portion by leaf hinges ll, while it may be provided with a finger-nail catch l3 to facilitate raising the same, see Figs. 2 and 3-. The auxiliary-closure I! it is to be further noted is of surroundingly less area than the body-portion 6 in order to define a peripheral ledge l5 about the top of the later, for a purpose hereinafter explained, see Figs. 2-5 to best advantage.

Referring now to the main cover on top It, the same is more or less of conventional pattern and section, while it is to be .noted the same comprises outer an dinner shell components l1, IS with an intervening insulation sheet l8; and to the inner component It there is secured by means 20 a support 2| embodying spring portions 22 adapted for grippage of a typical thermos-bottle 23 including a cup-closure 24 of known form. Particular attention, however, is directed to the fact that the surrounding edge of the top component I! is outwardly offset at 25 to snugly en- Sage over the confronting outer upper part of the body portion 6; whereas the relatively spaced surrounding edge of the inner component I8 is angled outwardly to provide a channel-section lip 26 adapted to clampingly-engage on and holddown the auxiliary closure i3, when the top it is retained in active position by the snap-grasps 21, as readily understood by those conversant with the art. It is also to be observed that the lip 26 of the component it also serves to effectively prevent the confronting edge of the insulation sheet [9 from exposure; while the top cover it is fulcrumed to the body portion 6 by suitable hinges 28, and the snap-grasps 21 engage pins 29 fast to the top lip 25 in accordance with known practice; whereas 30 designates the customary carrier-strap.

Attention is here directed to the provision of the inner shell number 3| of the body bottom wall 9, as well as the spacedly-confronting inner shell member 32 of the inner closure l3, with vertically opposing ribs 33, 34 respectively; said ribs being equally spaced from the body and walls 8 and medially lengthwise of the side wall 7 for a purpose later on set forth. Engageable with any one opposing pair of the ribs 33, 34 is the removable ice-cube container, comprehensiveiy designated 35 in Figs. 3-6; while on reference preferably to Fig. 6 it will be seen said container comprises a main receptacle 36-for the ice-cubes 31, Figs. 4 and 5and a cellular-cover 38. The retainer receptacle 36 is provided about its top with a relatively inset lip or extension 39 and associated gasket 40 on which the cellular cover 38 is adapted to sealingly seat so that no moisture from the interior of said receptacle 36 can escape outwardly. It is also to be noted the container 35 is preferably, although not essentially, moulded or otherwise formed of a suitable transparent plastic; while the bottom thereof, as well as the cover 38, are both formed with grooves M, 42 respectively for engagement by a selected pair of the opposing ribs 33, 34 as desired. Now it will be readily understood that, when the container 35 is charged with ice 3! and selectively positioned as desired in the body portion 6 of the improved lunch-box that the food stored in the remainder of said portion 6 is not only preserved from spoiling under all normal conditions but that it is likewise protected from contamination by any seepage of moisture thereinto. It is also to be remarked that two such containers 35 may be used, one at each end of the body portion 6;

or one such container can be medially located thereacross, in an obvious manner. Furthermore, it will be equally apparent the width of the container 35 may be such as to extend across the body portion 6, if it is desired to use a larger amount of or, more cubes 31 therein.

From the foregoing it is felt the merits and advant ges of my improved lunch-box, or the like, will be fully understood; also that changes in the structural features will suggest themselves to those conversant with the art without departing from the essential features of this invention; and accordingly, all such changes or modifications are contemplated as may reasonably come within the terms and scope of the following claim.

Having described my invention, I claim:

In a temporary storage carrier or lunch box of the type described including the closure and a removable ice container means for selectively-locating and positionally-holding the icecontainer within the said carrier or box comprising opposingly-related-ribs across the inner bottom face of said container and correspondingly across the under face of the inner closure; and grooves in the outer bottom face of the container and complementally sectioned grooves in the outer upper face of its cover for selective coaction with a pair of the opposing ribs aforesaid.

ALBERT RALPH HISTAND.

REFERENCES CITED The following references are of record in the file of this patent:

Silva Aug. 19, 1947

Patent Citations
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US1730403 *Apr 2, 1928Oct 8, 1929H B LittleDinner pail
US2339580 *May 9, 1941Jan 18, 1944Stewart Park JohnLunch box
US2425963 *Dec 5, 1944Aug 19, 1947Thomas SilvaLunch kit
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2614397 *Sep 7, 1951Oct 21, 1952Petty Richard ERefrigerated sales display kit
US2647653 *Sep 18, 1950Aug 4, 1953Dube John BInsulated container for perishable substances
US2724595 *Oct 18, 1954Nov 22, 1955Amann Ralph WDice box with pivoted cover
US2783874 *Aug 24, 1954Mar 5, 1957Brown John RLunch kit
US2796190 *Nov 15, 1954Jun 18, 1957Tupper Earl SRecord container
US3016129 *Nov 14, 1957Jan 9, 1962Joseph WynigerInsulated carrying case for heated frozen food dinners and the like
US3025947 *Dec 6, 1957Mar 20, 1962Dean Hammer AllanPortable lunch box
US3156105 *Aug 9, 1963Nov 10, 1964Bahner Wilburn ERefrigerated lunch box
US3353886 *Feb 21, 1966Nov 21, 1967Tompkins Edward LThermally insulated container
US3406811 *Nov 1, 1966Oct 22, 1968Sandra S. HigleyInsulated lunch box
US3971231 *Mar 27, 1974Jul 27, 1976Juanita DerryRefrigerator with dry ice coolant
US4307923 *May 31, 1979Dec 29, 1981Zeev RazBathroom cabinet
US4499998 *Mar 18, 1983Feb 19, 1985Brian Davis And Company Proprietary LimitedFood container with removable lid
US4714158 *Sep 24, 1986Dec 22, 1987Waterloo Industries, Inc.Molded tool tray assembly
US4832193 *Oct 26, 1988May 23, 1989Kime James WStorage container
US4846346 *Oct 24, 1988Jul 11, 1989Kime James WStorage container
US4892226 *Aug 17, 1988Jan 9, 1990Abtahi Nooral SPortable apparatus for refrigerated storage and transportation of cosmetics and the like
US4951866 *Nov 7, 1988Aug 28, 1990Restaurant Technology, Inc.Food container and method
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US5035471 *Dec 22, 1989Jul 30, 1991Bridport Aviation Products LimitedSafety arrangement for overhead luggage bins in aircraft passenger cabins
US5181612 *Oct 25, 1991Jan 26, 1993Liu Yuan WCompact collapsible lunch box
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US5950834 *Aug 26, 1997Sep 14, 1999Woodnorth; Brian E.Lunch holder for holding a food product and a beverage container
US7968132 *Aug 15, 2003Jun 28, 2011Contain This!, LlcDual compartment sandwich containers having a hinged divider and removable hot/cold pack
US8327659 *Dec 9, 2008Dec 11, 2012Cooler By DesignInsulated cooler
US8800795 *Mar 25, 2011Aug 12, 2014Hyung Keun HwangIce chest having extending wall for variable volume
US20050037113 *Aug 15, 2003Feb 17, 2005Archie Will N.Dual compartment sandwich containers having a hinged divider and removable hot/cold pack
US20080245096 *Nov 15, 2007Oct 9, 2008The Coleman Company, Inc.Fold-up insulated container
US20100005827 *Dec 9, 2008Jan 14, 2010Winkler David RInsulated cooler
US20100109496 *Jan 23, 2008May 6, 2010BSH Bosch und Siemens Hausgeräte GmbHButter compartment for a refrigerator
US20100139499 *Dec 7, 2009Jun 10, 2010Wik Far East Ltd.Milk holder for a beverage making machine
US20110121002 *Nov 22, 2010May 26, 2011Stephanie StillerMulti-compartment food storage container
US20140054298 *Mar 25, 2011Feb 27, 2014Hyung Keun HwangIce chest
Classifications
U.S. Classification220/592.2, 62/457.7, D07/709, 220/915.1, 62/459, 206/545, 312/293.2, 312/291
International ClassificationA45C11/20
Cooperative ClassificationA45C11/20
European ClassificationA45C11/20