US2278782A - Container - Google Patents

Description

April 7, 1942. 1.. M. HARVEY err/u.

CONTAINER Filed June 23, 1959 H IIIHHJ g be refrigerated by dry ice Patented Apr. l9 i2 2,218,182 CONTAINER D Leo M. Harvey, La Canada, and Reuben Hill, Los Angeles, Calif.; said Bill assignor to Harvey said Application June23, 1939, Serial No. 230,819 9 Claims. ((152-915).

This invention relates to containers and relates more particularly to containers for refrigerated and perishable products. A general object of this invention is to provide a simple, inexpensive and particularly effective container adapted to or solidified carbon dioxide.

In the co-pending application of Leo M. Harvey, Herbert Harvey and Reubin Hill, Serial No. 280,818 entitled Device for providing refrigerants in containers," filed June 23,1939, there is described and-claimed a device for forming solidifled carbon dioxide in outer containers to preserve or refrigerate products held in inner conitainers. The carbon dioxide is discharged under pressure by nozzles directed into the outer cartons or containers and the rapid expansion of the carbon dioxide results in a chilling efiect which, in turn, causes solidification of the carbon dioxide. The solidified carbon dioxide builds up or accumulates on the surfaces of the containers so that the spaces or voids in the containers become filled with the solidified carbon dioxide. When employing typical containers a substantial part of the carbon dioxide leaving the nozzles at a high velocity strikes the surfaces of the containers and rebounds or glances oil without adhering to the surfaces. This carbon dioxide that does not adhere to the containers surfaces usually does not solidify but remains gaseous and thus is lost.

Another object of this invention is to provide a container in which solidified carbon dioxide is to be formed that is designed and constructed in such a manner that there is little or no loss of the carbon dioxide by reason of the rebounding, or glancing off, of the incoming carbon dioxide under pressure.

Another object of this invention is to provide a container of the character mentioned embodying a wall structure or lining structure that is rough textured, foraminous, cellular, or broken in contour so that the solidifying carbon dioxide is retained on it and occupies itscells, crevices and pores to quickly build up or accumulate on the surface.

Another object of the invention is to provide a container for holding a food container in spaced relation to its inner walls leaving a space to receive discharge nozzles of a carbon dioxide dispensing device, said space or spaces being provided with multiplicities of pockets or recesses which hold the carbon dioxide for a long period, the carbon dioxide in the spaces serving as a refrigerantfor the sealed food container and the carbon dioxide being retained in the spaces and their many pockets or recesses upon gasiflcation to act'as an eflicient insulator whereby the food may be preserved for a long .period.

Another object of this invention is to provide a container of the the rough textured cellular or uneven wall or lining parts are simple and inexpensive,- and readily embodied in the container construction.

Another object of this invention is to provide a container of the character mentioned that is effectively insulated and that is light in weight and strong.

A further object of this invention is to provide a container of the character mentioned in which the wall or lining elements, providing for the effective retention of thecarbon dioxide, strengthen the general construction and serve as thermal insulation to reduce heat absorption by the carbon dioxide.

The various objectsand features of our invention will be fully understood ing detailed description of typical preferred forms and applications of the invention, throughout which description reference ismade. to the v accompanying drawing, in which:

size and may be formed of any Fig. 1 isa perspective view of one form of container of the invention with the top flaps of the outer container in the open position. Fig. 2 is a vertical detailed sectional view of the container illustrated in Fig. l with a portion of the inner container broken away to illustrate the character of the lining. Fig. 3 is an enlarged fragmentary horizontal detailed sectional view taken as indicated by line 3-3 on Fig. 2. Figs. 3A and 3B are fragmentary perspective views of the lining of the outer container. Fig. 4 is a perspective view of the container illustrated in Fig. 1 in the sealed or closed condition, and Fig. 5 is a side elevation of another form of container of the invention withv the top flaps open and a portion broken away to illustrate the wall and lining structure in cross section.

The embodiment of the invention illustrated in Figs. 1 to 4 of the drawing may be said to comprise, generally, a container body l0, an insulating lining II in the body "I, a lining l2 within the lining ll designed for the most efiec tive adherence of the refrigerant, and an inner container l3 arranged in thejpody l0 and adapted to hold a perishable product.

The container body In may be of any shape and suitable material. In the case illustrated the body "I is a rectangular structure formed of double-faced corrugated character mentioned in which 7 from the followboard, paper or cardboard of the type commonlyused in cartons, etc. The body It may'be formed of a single piece of stock out and foldedto have sides I; and top and bottom flaps I 5. The bot- .tom flaps ii are folded in overlapping relation and are secured in The top fiaps I illustrated in Fig. container l3 and The lining II to reduce heat transference and the absorption of heat by the carbon dioxide. The lining II is not essential in every application tion. Where employed, the lining prise a length of single or double gated paper board folded to have lated side parts lying against the may be initially left open, as

the carbon dioxide.

H' may comfaced 001111: angularly reinner surfaces of the body side walls 14. As best illustrated in Fig. 3 of the drawing the lining II the invention being described is constructed of double faced corrugated paper board or fiber board ofthe well known type. The lining I I may include a bottom member l1 lying against the bottom flaps IS. The bottom member I! may be formed of double faced corrugated paper board. It will be seen that the successive layersor thicknesses of the corrugated board provided by the body walls and the lining ll form efiective thermal insulation.

The lining I2 is an important feature of the invention. The lining I2 is provided to assure the most effective retention of the carbon dioxide on the interior of the outer container when the carbon dioxide is Jetted or sprayed into the container so that the carbon dioxide accumulates as sn w with a minimum gaslfication and loss. The lining I2 is arranged within the lining ll, latter is employed, and where the insulating lining H is dispensed with the lining I2 is arranged directly within the container body III. In the preferred construction the lining l2 completely covers the inner sides of the lining H or the body walls I4 as the case may be. The lining l2 may be formed of any suitable or selected material. In the case illustrated it will be considered that the lining I2 is formed of paper, cardboard or other fibrous material. The lining I2 is formed or constructed to present roughened, ragged; frayed, cellular, broken or uneven surfaces against which the carbon dioxide impinges when discharged into the container and which operate to greatly reduce the deflection or bouncing of the carbon dioxide and thereby assure the accumulation or building up of solidified carbon dioxide within the container. The invention broadly contemplates the formation of the lining l2 in any selected or practical manner to give it the desired roughened, cellular or irregular surface.

In the construction being described the I2 is formed of single faced corrugated paper The illustrated lining l2 includes a'plain outer sheet l8 adapted to lie against the lining I I or the internal surfaces of the container sides I and a corrugated sheet [9 adhesively or otherwise secured to the inner side of the sheet I 8. The corrugations oi" the sheet I9 preferably extend longitudinally or toward the upper and lower ends 01 the container body it. In accordance with the invention the corrugations of the sheet l9 are interrupted, broken, cut or made irregular. In the arrangement illustrated the corrugated sheet H has transverse cuts or slots 20 of substantial width passing through its corrugations or ribs; The slots 0 may be simultaneously cut in the form of a closed position by tape II;

is a thermal insulation provided of the inven- 1, for the reception of the inner manner that the fibers of of the outer container.

where the V slots to constitute separate cells 2|.

aware:

er at each slot 20 and are interrupted by the I It will be seen that the slots "cutting through the ribs or corrugations of the sheet ll provide the corrugated sheet with a multitude of individual cells which communicate with the interior of the container. The slots 2| may be formed in such a the fibrous sheet II are frayed along their edges. The slots 20 are spaced throughout the entire lining l2 so that the entire inner surface of the lining presents a large number of spaced cells 2 I and roughened or frayed edges -at the slots.

The irmer container I I may type and construction. In the case illustrated the container II is a cylindrical can or carton of the type commonly employed to .holdice cream, etc. and is sealed or closed by a suitable substantially tight cover. l2 fits the outer container I 22 of substantial capacity occur in the corners is, of course, proportioned 'so that it may be ventirely received in the outer container and so that it is held against shifting or dislocation.

In employing the improved container illustrated in Figs, 1 to}, inclusive, carrying the perishable product, is arranged within the outer container and is then discharged or injected under pressure into the outer container. The carbon dioxide maybe discharged into the open corner spaces 22. The carbon dioxide under pressure discharged within the lining l2 strikes the surface of the sheet II which is irregular and broken by reason of the slots 20. The carbon dioxide enters the cells 2i and engages the frayed edges of the slots 20. The cellular formation of the'lining I2 and the rough and irregular surface presented by the lining sheet is cause the carbon dioxide to re-v main on the lining and the retained or held crystalline carbon dioxide soon builds up on the lining. The carbon dioxide has little or no tendency to deflect or rebound from the rough, broken and irregular surfaces of the lining l2 and practically all of the carbon I a sufilcient quantity-of-solidified carbon dioxide has been formed in the container the top flaps I! are closedand then sealed or held in the closed position by adhesive tape 23, or the like. The cells 2| serve to trap or hold the CO: when it returns to its gaseous state and this gaseous CO2 forms a very eflicient thermal insulation retarding the gasification of the main body' or bodies of solidified C02. 1.

The form of the invention illustrated in Fig. 5 of the drawing may be saidto comprise, generally, an outer container body ID, a lining l2 in the body Ill, and an inner container IS in the body I I.

The body III may be formed of paper, cardboard, or other suitable material. In the case illustrated the body II is constructed of plain fiber-board, paper board, or the like; it being understood that the container body maybe constructed of corrugated board, if desired. The lower end of the body I0 is initially closed while the top flaps II! are initially pen for the reception of the container 13! and the refrigerant.

The lining l2 isprovided to insulate the container against excessive heat absorption by the be of any selected The inner container 0 so that open spaces 1 The inner container l3 the container it the carbon dioxide dioxide solidifies. When carbon dioxide refrigerant and to assure the efficient retention of the solidified carbon dioxide on the interior of the container. The lining [2 comprises a layer of linters or other fibrous material applied to the inner surfaces of the container body ill. The fibrous material constituting the lining i2 is preferably loose or open to have multitudes of small crevices, cells and spaces, and to present a rough or irregular surface. The fibrous lining the internal surface of the body It] in any suitable or selected manner. In the case illustrated there is a layer 30 of adhesive tape or fabric on the interior of the container body It] to which the fibrous lining 12 is applied. The fibrous material or fibers of the lining l2 may be sprayed or blown on the adhesive layer 30 when the same is wet or tacky, or if desired, the fibers of the lining l2 may be rolled onto the adhesive layer 30. The lining l2 may be of substantial thickness to be efficient as a heat insulator. As illustrated, the lining l2 may cover the inner surface of th container bottom and the large inner cover flap l5 as well as the inner .surfaces of the container body sides.

The inner container l3 is provided to hold the perishable product to be refrigerated and is del2 may be applied to the inner surface of signed and proportioned to be held within the outer container body ID. The container l3 may be of the same character as the container l3 and is adapted to fit snugly within the lining l2.

The container construction illustrated in Fig. 5 of the drawings has the same, use and operation as the previously described form of the invention. The container l3 is placed within the outer container body Ill and the carbon dioxide into the open corner The carbon under pressure is discharged spaces of the container body W dioxide is readily held by face of the fibrous lining l2"- and the solidified carbon dioxide or dry ice rapidly builds up in the container. There is little, if any, tendency for the carbon dioxide to deflect from or rebound from the rough porous surfaces presented by the loose fibers of the lining l2 and practically all of the carbon dioxide solidifies to form an effective jacket of dry ice" around the inner container I3. When a sufficient quantity of the carbon dioxide has been solidified in the outer container body Ill the top fiaps l5 are closed and, if necessary, sealed shut.

Having described only typical preferred forms and applications of our invention, we do not wish to be limited or restricted to the specific details herein set forth, but wish to reserve to ourselves any variations or modifications that may appear to those skilled in the art, or fall within the scope of the following claims:

Having described our invention, we claim:

1. A container into which carbon dioxide under pressure is to be discharged to form dry ice comprising a container body, and a lining in the body the rough open sur-.

comprising a corrugated sheet whose corrugations are interrupted at spaced points along their lengths and at the internal surface of the lining to provide a multitude of cells for the retention of the carbon dioxide and edges that prevent the carbon dioxide from, glancing off.

2. A container into which carbon dioxide under pressure is to be discharged to form dry ice comprising a container body, and a lining in the body comprisinga corrugated sheet, the corrugations of the sheet having longitudinally spaced transverse slots with rough walls open to the interior of the body.

3. A container into which carbon dioxide under pressure is to be discharged to form dry ice comprising a container body, and a lining in' the body comprising .an adhesive material on the inner surface of the body, and a layer of fibers secured 5. A container into which carbon dioxide is to. be discharged to solidify, the container comprising a container body, and lining means in the body having a plurality of cells and presenting ragged fibrous edges at the mouths of the cells.

6. A container into which carbon dioxide is to be discharged to solidify, the container comprising a container body, and lining means in the body presenting a plurality of inwardly facing V ridges, the ridges having spaced openings with frayedfibrous walls for holding the solid carbon dioxide.

'7. A container into which carbon dioxide is to be discharged to solidify, the container comprising a container body, and lining means in the body including a wall of fibrous material having a multiplicity of rough walled openings providing ragged edges for the retention of the carbon dioxide.

8. A container into which carbon dioxide is to be discharged to solidify, the container comprismg body including a, corrugated fibrous sheet having ragged cuts in its corrugations providing rough fibrous edges for the retention of the solidified carbon dioxide.

9; A container into which carbon dioxide is to be discharged to solidify, the container comprising a container body, and lining means in the body including a corrugated fibrous lining sheet. said sheet having a multiplicity of ragged slots interrupting its corrugations at longitudinally REUBEN H1111.

a container body, and lining means in the provide cells and frayed fibrous

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