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Publication numberUS2916886 A
Publication typeGrant
Publication dateDec 15, 1959
Filing dateNov 23, 1956
Priority dateJun 15, 1956
Publication numberUS 2916886 A, US 2916886A, US-A-2916886, US2916886 A, US2916886A
InventorsRobbins Albert A
Original AssigneeKwik Kold Of America Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Unit type chemical freezing package
US 2916886 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Dec. 15, 1959 A. A. ROBBINS 2,916,886

UNIT TYPE CHEMICAL FREEZING PACKAGE Original Filed June 15, 1956 INVENTOR. 4455174 ffi/A f,

. being either in the form of Un d Stats? etsfl .0;

masts UNIT TYPE airmen. FREE ZIlWG PACKAGE 2 Claims. (Cl. 62-4) 1956, Serial This invention relates toa chemical freezing package, and particularly to a package in which the chemicals, or the water and a chemical, can be easily and simply mixed when it is desired to reduce the temperature of the package and, consequently, of the surrounding area.

An object of my invention is to provide a novel chemical freezing package of the unit type, consisting of an outer envelope which is divided into compartments, and with a physical means within one of the compartments which perforates or severs the wall or partition between adjacent compartments.

Another object of my invention is to provide a novel chemical freezing package of the unit type which includes an outer integral envelope, the envelope being divided into adjacent compartments, and with a toothed or pointed frame positioned in one compartment to em able the user to perforate or sever the wall or partition between the adjacent compartments of the package.

Still another object of my invention is to provide a novel chemical freezing package of the unit type in which the ingredients positioned in the separated compartments of the package can be intermingled by manually 'causingthe separating wall or partition inthe package to be brokenor perforated, said perforation or severing of the dividing 2,916,886 Patent d Dec. 15, 1959 2 H ing airlor to adjacent articles. Consequently, a package containing any of the freezing mixtures when enclosed in abbx, carton, hamper, or container will lower the tem- Serial No. 591,758.

per'ature therein and will maintain a low temperature in foods, liquids, cans, bottles, etc., which are placed within the containers, etc. r

This application isa division of my application, Serial No. 591,758, filed June 15, 1956, for Chemical Freezing Package.

' In order that the freezing package may be easily transported and, further, that it may be activated to reduce temperature at any time desired, I provide a chemical freezing package as follows: An outer envelope or hous ing 1 is preferably formed of a plastic sheet material, such as polyethylene, vinyl or acetate. This plastic sheet material is usual and well known in the industry and the sheets are formed of sufficient thickness so that they will not easily tear or break. Further, the plastic sheet is sufficiently dense so that gases will not readily pass therethrough. .By gases is meant ammonia, chlorine, etc. The envelope 1 is preferably formed by heat sealing the edges 2, or by means of a suitable adhesive so that a completely enclosed envelope is provided. The envelope 1 is formed into two compartments 3 and 4 by a sealed strip 5, this sealed strip being breakable or may be parted to provide communication between the compartments 3 and 4. The sealing partition or strip 5 has less strength than the outer sealed area 2 so that the envelope 1 will not be ruptured by any manipulation necessary to open, break, or sever the strip 5 in order to pro vide communication between the compartments 3 and 4. The compartment 4 is filled with a salt 6 which is termed a freezing mixture, as specified above. The sealing strip 5 is formed bya heated iron or some other suitable sealing instrument, or by applying an adhesive so that the compartments 3 and 4 are separate and distinct, except when the'strip 5 is severed. The compartment 3 may 7 contain free water, or it may contain a chemical which wall or partition being accomplished manually by the user, the user actuating a pointed frame or article within one of the compartments of the package.

Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detailed description and the appended claims.

In the drawing:

Figure 1 is a side elevation of my freezing package of the unit type. p t

Figure 2 is a fragmentary side elevation of my freezing package and illustrating the breaking or perforating of the separating seam strip or partition of the package.

Figure 3 is a fragmentary vertical sectional view of my freezing package.

It is well known in the chemical art that certain chemicals absorb heat when water is added thereto, this water free water or water molecules in a chemical substance. The absorbed heat is obtained from adjacent bodies by means of conduction, convection or radiation, or possibly all three. The chemicals will be termed freezing mixtures in the following specifics;

tion and may include any of the following chemicals, or many others having the same property; Some of these freezing mixtures have the following formulae:

Nac,H 0 NH C1 NaNO- N32830:; KI

cacl, Mario,

The addition of water to any of these chemicals will cause a marked reduction in temperature in the surround- 65 pushed through the dividing strip to permit intermingling has any available free-water molecule. To permit the intermingling of the water and the freezing mixture 6, I provide a frame 7 which is formed with one or more pointed or sharp comb-like fingers 8, which fingers normally rest on the dividing strip 5 as shown in Figure 1. By applying manual pressure to the top of the frame 7 the fingers 8 are forced through the dividing strip 5, as shown in Figure 2. This provides communication between the compartments 3 and 4 and permitting water to drain into the freezing mixture 6 and mix therewith. If a hydrous chemical is used in one of the compartments, such as sodium carbonate (Na CO +5-10H O) then the two chemicals will intermix and the free water in the hydrous chemical will activate the freezing mixture.

Having described my invention, I claim;

1. A chemical freezing package comprising a rectangular envelope formed of a thin flexible plastic material, the peripheral edges of said envelope being all sealed to prevent leakage of material therefrom, a dividing strip extending transversely across the outer envelope, said dividing strip being formed by sealing the walls of the envelope-together along said strip whereby said envelope is divided into two separate compartments, a dry freezing chemical mixture in one of said compartments, a quantity of fluid in the other of said compartments, perforating means loosely positioned entirely within one of said compartments, said perforating means having a tooth thereon, the tooth being adapted and arranged to be of the fluid and the chemical freezing mixture.

2. A chemical freezing package comprising a rectangular envelope formed of a thin flexible plastic material, the peripheral edges of said envelope being all sealed to prevent leakage of material therefrom, a dividing strip exh tending transversely across the outer envelope, said dividing strip being formed by sealing the walls of the ento be pushed through the dividing strip to permit intervelope together along said strip whereby said envelope is mingling of the fluid and the chemical freezing mixture. divided into two separate compartments, a dry freezing chemical mixture in one-of said compartments, a quantity References Cited in the file of this P of fluid in the other of said compartments, a perforating 5 UNITED STATES PATENTS means loosely positioned entirely within one of said com- 1 897 723 Free Feb 14 1933 partments, sharpened projections on the perforating Taylo; June 1941 means, said sharpened projections being positioned adu jacent the dividing strip and extending towards the di- FOREIGN PATENTS viding strip, said projections being adapted and arrange 10 1,054,170 France Oct. 7, 1953

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1897723 *Apr 29, 1927Feb 14, 1933Free Walter HRefrigerating device
US2245738 *Feb 14, 1940Jun 17, 1941Taylor Ivan MPlural-compartment envelope
FR1054170A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3028000 *Aug 7, 1959Apr 3, 1962Coty IncDouble channel plastic package
US3059831 *Nov 28, 1958Oct 23, 1962Univ Notre Dame Du LacConnection between two sealed chambers and method of making the same
US3561424 *Sep 15, 1969Feb 9, 1971Failla Anthony CFood warming by exothermic reaction
US3800994 *Aug 21, 1972Apr 2, 1974Continental Can CoHorizontal heat-seal liner for fibre drums
US3913559 *Feb 7, 1972Oct 21, 1975Kay Laboratories IncConstant temperature device
US3977202 *May 28, 1975Aug 31, 1976Johnson & JohnsonCold pack device
US4258863 *Jan 8, 1979Mar 31, 1981Ness Richard AFlexible dispensing container having internal container wall rupturing means
US4331264 *Jun 5, 1980May 25, 1982Panpack A.G.Package for accommodating and ejecting small amounts of flowing material
US4462224 *Jul 11, 1983Jul 31, 1984Minnesota Mining And Manufacturing CompanyInstant hot or cold, reusable cold pack
US4723974 *Aug 27, 1986Feb 9, 1988Ammerman Stephen WTransporting container for an amputated extremity
US4922973 *Nov 17, 1988May 8, 1990Coil Matic, Inc.Collecting vessels for collecting refrigerants from heat exchange systems and methods
US5131760 *Jul 3, 1990Jul 21, 1992Farmer Bert EPackaging device
US5305733 *Mar 31, 1993Apr 26, 1994Omni Therm, Inc.Trigger to activate supercooled aqueous salt solution for use in a heat pack
US6601577Apr 6, 2001Aug 5, 2003Moshe BouskilaContainer assembly for warming beverages and method of forming and using it
US7306371Dec 14, 2004Dec 11, 2007Poppack, LlcAccess structure with bursting detonator for opening a sealed package
US7744940Aug 2, 2005Jun 29, 2010Hickey Charles PFood product warming or cooling package
US7993692Aug 9, 2011Cryovac, Inc.Package assembly for on-demand marination and method for providing the same
US8181818May 22, 2012Poppack, LlcSecure container with pressure responsive conduit for closure disruption
US8590282Oct 26, 2010Nov 26, 2013Poppack, LlcPackage with unique opening device and method for opening package
US8684601Mar 2, 2007Apr 1, 2014Poppack, LlcStorage apparatus with a breachable flow conduit for discharging a fluid stored therein
US20030116452 *Nov 25, 2002Jun 26, 2003Jerko SaricTrigger mechanism for self-heating/cooling packages or containers universally applied to both rigid and non-rigid packages and containers
US20060126970 *Dec 14, 2004Jun 15, 2006Perell William SAccess structure with bursting detonator for opening a sealed package
US20060153955 *Aug 2, 2005Jul 13, 2006Hickey Charles PFood product warming or cooling package
US20070286535 *Mar 14, 2007Dec 13, 2007Perell William SShaped breaching bubble with inward incursion breaching focus
US20100300901 *Dec 23, 2008Dec 2, 2010Perell William SRigid holding container with breachable perimeter bubble
US20100326989 *Sep 2, 2008Dec 30, 2010Pop Pack, Llc.Pour channel with cohesive closure valve and locking bubble
US20110036056 *Oct 26, 2010Feb 17, 2011Poppack, Llc.Package with unique opening device and method for opening package
US20110200275 *Aug 18, 2011Poppack, LlcPackage containing a breachable bubble in combination with a closure device
USD654790Jan 28, 2011Feb 28, 2012Poppack, LlcHolding container with breachable perimeter bubble
USRE41273 *Aug 1, 2008Apr 27, 2010Poppack, LlcAccess structure with bursting detonator for opening a sealed package
USRE44458Jan 28, 2010Aug 27, 2013William Simon PerellAccess structure with bursting detonator for opening a sealed package
DE3019636A1 *May 22, 1980Dec 11, 1980Panpack AgPackung zum aufnehmen und abgeben kleiner mengen fliessfaehiger materialien
DE4116848A1 *May 23, 1991Nov 26, 1992Moebius & RuppertClosure for flexible container holding two different liquids - has two elements connected by film hinge and with spur for piercing membrane
DE4134616A1 *Oct 19, 1991Apr 29, 1993Moebius & RuppertMixer for two component intravenous fluid container
DE4222047C1 *Jul 4, 1992Aug 5, 1993Moebius & Ruppert, 8520 Erlangen, DeTitle not available
EP0538569A1 *Aug 7, 1992Apr 28, 1993Pharmacia GmbHClosing device for a flexible holder and holder with such a closing device
WO1991010102A1 *Dec 19, 1990Jul 11, 1991Iit Research InstituteMethod and apparatus for warming food
Classifications
U.S. Classification62/4, 206/222, 206/223, 206/219, 62/294, 126/263.8
International ClassificationB65D75/30, B65D75/28, F25D5/00, B65D81/32, F25D5/02
Cooperative ClassificationB65D75/30, F25D5/02, B65D81/3266
European ClassificationB65D75/30, B65D81/32H1, F25D5/02