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Publication numberUS3149943 A
Publication typeGrant
Publication dateSep 22, 1964
Filing dateNov 20, 1961
Priority dateNov 20, 1961
Publication numberUS 3149943 A, US 3149943A, US-A-3149943, US3149943 A, US3149943A
InventorsMartin R Amador
Original AssigneeMartin R Amador
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Chemical refrigerant package
US 3149943 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Sept. 22, 1964 M. R. AMADOR CHEMICAL REFRIGERANT PACKAGE 3 Sheets-Sheet 1 Filed Nov. 20, 1961 R m v m MARTIN R. AMADOR A TTOHNEY Sept. 22, 1964 M. R. AMADOR CHEMICAL REFRIGERANT PACKAGE 5 Sheets-Sheet 2 Filed Nov. 20, 1961 INVENTOR. MARTIN R. AMADOR ATTORNEY Sept. 22, 1964 M. R. AMADOR 3,149,943

CHEMICAL REFRIGERANT PACKAGE Filed Nov. 20, 1961 3 Sheets-Sheet 5 INVENTOR. MARTIN R. AMADOR 6 ATTORNEY United States Patent 3,149,943 CHEMICAL REFRIGERANT PACKAGE Martin R. Amador, 28 Pascack Road, Hiilsdale, NJ. Filed Nov. 20, 1%61, 'Ser. No. 153,582 1 claim. (or. 62-4) This invention relates to a chemical refrigerant device adapted to be used as an ice pack or bagor the like, and to a package for marketing the device.

In first-aid situations, such as after an accident or injury to a person, the first aid required is often the quick application of ice or cold therapy to the injured site but as often occurs no ice is available at the place and time, and precious time is lost obtaining the necessary ice; and, when the ice is obtained, it must be enclosed in an enclosure such as a towel or bag, which enclosure is not always available, and further valuable time is lost in 0btaining the enclosure.

It is accordingly an important object of the present invention to eliminate the foregoing disadvantages by providing a chemical refrigerant device that can be readily stored in convenient places and carried on the person, and that is adapted for instant use under all conditions and to any part of the body of a person.

Another object of the invention is to provide such a chemical refrigerant device that can be stored in a small space or suspended from a nail .or the like on a vertical supporting surface before or after it is conditioned for use.

A further object of the invention is to provide such a chemical refrigerant device that is readily conditioned for use and readily applied to any part of the body of a person by an unskilled person.

Yet another object of the invention is to provide such a chemical refrigerant device that is simple in construction and that can bemanufactured and sold at a reasonable cost.

Broadly the invention comprises an elongated rectangular-shaped envelope adapted to be squeezed and temporarily sealed transversely at its midlength to form separate compartments. One compartment is filled with a dry refrigerating substance such as granular ammonium nitrate. The other compartment is filled with water or other hydrous fluid. By eliminating the seal, the two compartments are brought into communication with each other so that the contents of the compartments are automatically mixed causing an endothermic chemical reaction which reduces the temperature of the water or fluid. Ready, positive and simple means are provided for formingthe seal and for eliminatingor dissolving the seal when desired.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claim in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

FIG. 1 is a top perspective view of a chemical refrigerant package embodying my invention.

FIG. 2 is a cross-sectional view taken on the line 2-2 of FIG. 1.

FIG. 3 is a top perspective view of the compartmented chemical refrigerant device removed from the package,

in folded condition.

PEG. 4 is a top perspective view of the refrigerant device of FIG. 3 in flat spread out condition.

FIG. 5 is a longitudinal sectional view taken on the line 55 of FIG. 4.

PEG. 6 is a top plan view of the refrigerant device of FIG. 3 after the seal is removed and the device is transferred into a single compartment ready for use.

FIG. 7 is a longitudinal sectional view taken on the line '77 of FIG. 6.

FIG. 8 is a perspective view of the refrigerant device of FIG. 6 applied to the wrist of a person.

FIG. 9 is a top perspective view of an elongated strip of stock from which the envelope and sealed refrigerant device of FIG. 3 are made, showing one step in the manufacture thereof.

FIG. 10 is a similar view showing the last step in the manufacture of the envelope of the device.

FIG. 11 is a longitudinal sectional view taken on the line 11-11 of FIG. 10, with the end edges turned away from each other.

FIG. 12 is a cross-sectional view taken across a modified form of seal device for forming the compartments of the device.

Fl-G. 13 is a view similar to FIG. 12 of another modified form of seal device.

P16. 14 is a view similar to FIG. 12 of still another modified form of seal device.

FIG. 15 is a view similar to FIG. 12 of yet another modified form of seal device.

Referring in detail to the various views of the drawings, in FIG. 1 there is shown a chemical refrigerant device embodying my invention indicated generally at 20, and packaged for marketing. The package is indicated by the reference numeral 22.

The refrigerant device it) per se is best shown in FIGS. 3 and 4 and comprises an elongated rectangular-shaped envelope 24. 'The envelope 24 is preferably formed from seamless tubing of flexible, preferably opaque sheet plastic material. The envelope has a front Wall 26 and a rear wall 28, the walls being sealed across by heat and pressure along a line 30 at one end and across and adjacent the other end along a line 32. The line 30 is farther inwardly from its respective end than line 32 is from its respective end. The remainder of the walls are detached from each other.

At a point midway the ends of the body, the front and rear walls are sealed transversely by a sealing device constitutedby a round plastic rod 34 constituting a core extending across one side of the body of the envelope mid- Way its ends and protruding slightly beyond .both long edges of the walls. The rod is pressed into the material of the envelope forming a transverse loop 36 of material which is clamped to the rod by means of a removable clamping bar 38, semicircular in cross section, withflanges 40 along its edges.

The clamping bar is formed of resilient plastic material. The sides and flanges of the clamping bar pinch and press the looped material of the front and rear walls to each other and against the round rod 34,forming a seal and a flexible joint 42 across the envelope at-such point, thereby dividing the envelope into an inner compartment 44 on one side of the seal and joint and into another inner compartment 46 on the other side of the seal and joint. A hole 48 is formed in the juxtaposed ends of the front and back walls outwardly of thesea'l line 30. i

The pressure exerted by the clamping bar 38 should be sufiiciently great so as to permit machine packing of the package. The bar should not readily slip off during fabrication of the package, envelope or prior to its removal by the user.

In the compartment 44, there is a supply of a dry refrigerating substance such as granular ammonium nitrate 50. In the other compartment 46, there is a supply of water or other hydrous fluid 52. The nitrate 50 and fluid 52 are separated from each other by the sealed joint therebetween.

In the manufacture of the chemical refrigerant device 26, the envelope 24 is formed by cutting same from the tubular strip 56 of plastic stock material such as shown in FIG. 9. The strip 55 is marked oif at spaced intervals therealong as indicated at 58, the space between adjacent lines representing the length of the envelope 24. Midway between adjacent lines 58, the round rod 34 is placed across the material on one side thereof, and opposite the rod 34 on the other side of the material, the clamping bar 38 is placed. Automatic or manual pressure is brought to bear against bar 38 in the direction of the arrows in FIG. 9 whereby the material around the rod 34 is looped to form the loop or fold 35 thereby clamping a portion of the envelope to the rod 34 thus forming the seal and joint across the material as shown in FIG. 10. The nitrate 30 and 1 uid 52 are then inserted through the open ends of the envelope and the envelope next sealed by heat and pressure along the end lines 6% and 62 in FIG. 10, thereby forming the seal lines 30 and 32 of FIG. 4, after which the hole as is formed.

In order to permit convenient and rapid mixing of the nitrate t) and fluid 52, it is desirable not to fill the compartments to their full capacity. It is also desirable to exclude air, especially major quantities thereof, from the interior of the bag or compartments.

In marketing the chemical refrigerant device 20, the device is folded along the joint between the compartments 4d and 4-6 and placed in a substantially square transparent sealed cellophane envelope 66 shown in FIGS. 1 and 2.

An elongated flexible tape or ribbon 68 of sheet plastic material or fabric is suitably folded and placed in the envelope for taping the device 26 onto the particular part of the body of a person where needed.

In use, the chemical refrigerant device 20 and ribbon 68 are removed from the sealed plastic envelope 66. The device 2% may be hung on a nail pending use by means of the hole 43. In using the device, the seal and joint must be removed or dissolved from between the compartments 44 and 46 so that communication is restored between said compartments. This is accomplished by grasping hold of the ends of the envelope 24 adjacent the sealed lines 3% and 32 and pulling the ends away from each other in the direction of the arrows shown in FIG. 5. By so doing, the flexible clamping bar 38 is spread apart thereby releasing its pressure, whereupon it flies off of the looped material and rod 34 and continued pulling in opposite directions will cause the looped material to straighten out and the rod 34 to fall away from the envelope, thereby establishing communication between the compartments 44 and 46.

In order to mix the nitrate and fluid, either the nitrate or fluid is squeezed by the hands of the user into the other, preferably working from opposite corners of the compartments in alternation until the substances have been thoroughly and rapidly mixed forming a compound 76 which reduces the fluid thereby forming the refrigerant envelope 24 as shown in FIGS. 6 and 7. The envelope 2% is now ready to be applied to the needed part of the body of a person, such as the wrist 72 as shown in FIG. 8. The envelope is looped or wrapped around the wrist and tied in this condition by means of the ribbon 68.

In FIG. 12, a modified form of seal device for forming the compartments i4 and 46 is shown. This seal device differs from the seal device of FIGS. 1 to 11, inclusive, merely in that the center of the clamping bar 38' is thickened which prevents the clamping bar from buckling transversely, and facilitates slipping the bar over the looped material.

Another modified form of seal device is shown in FIG.

A 13. This form differs from the form shown in FIG. 12 in that an elongated resilient pad '74 is interposed between the rod 34" and the loop 36 of the material of the envelope. The pad '74 extends the length of the rod 34" and forms a resilient seal therealong.

In FIG. 14, still another modified form of seal is shown wherein the core rod 34 is substantially rectangular in cross section with downwardly and inwardly slanting side surfaces '76 terminating in opposed curved corners '78 extending the length of the rod, the corners merging into lateral flanges St A central groove 82 is formed in the top of the body of the rod 34 forming curved beaded portions 84, 84 therealong. The clamping bar 38 is shaped to conform to the shape of the rod 34" with the sides thereof slanting inwardly and with its flanges clamping the material of the envelope to the flanges 80 of the rod. A downwardly extending bead 86 depends from the center of the top of the bar 38 clamping the material of the loop 36 of the envelope into the central groove $2 and forming a seal therealong.

Still another modified form of seal and joint is shown in FIG. 15 wherein the core rod 34* is formed with a central bore 90. In this seal, the material of the walls 26* and if? of the envelope 24 is folded transversely upon itself forming a loop 36 having four plies of folded material over which the clamping bar 38 is clamped.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and that various changes and modifications may be made within the scope of the invention as defined in the appended claim.

Having thus described my invention, what I claim as new, and desire to secure by United States Leters Patent A chemical refrigerant device comprising a substantially flat envelope having the material thereof folded along a line midway the ends thereof, said fold extending across the width of the envelope to form a transverse dividing line that separates the envelope into two compartments, one of said compartments having granular material, the other compartment having a fluid, said fold enveloping a rod constituting a core extending the full width of the envelope, a removable clamping bar of generally U-shaped configuration substantially coextensive in length with the 7 core rod engaging said core rod over an effective clamp ing surface and clamping a section of the material of the envelope to form a tight seal between said compartments, said core rod being detached and said fold of material being straightened out by pulling on opposed ends of the envelope thereby breaking the seal, said clamping bar being semi-circular in cross-section with a thickened strengthened section at its center to prevent transverse buckling thereof, and an elongated resilient pad extending the length of said fold core rod and clamping bar and interposed and confined wholly between the fold and said fold core rod in longitudinal alignment with the thickened section of the clamping bar and of less widthwise extent than the contact of the fold with the fold core rod and compressed thereby to effect a seal therebetween with said thickened section of said clamping bar applying a sealing force against said resilient pad to retain the same against the envelope fold to form a fluid tight seal thereat and with said core rod enveloped in said fold.

Erickson et al July 31, 1956 Robbins Apr. 21, 1959

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2756874 *Jul 20, 1955Jul 31, 1956Wallace A Erickson & CoCompartmented bag and package
US2882692 *Nov 23, 1956Apr 21, 1959Robbins Albert AFolding type chemical freezing package
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3375822 *Feb 19, 1965Apr 2, 1968Avco CorpSurgical cast and method of forming and applying to a body member
US3429315 *Nov 4, 1966Feb 25, 1969Chemi Temp CorpChemical refrigerant blanket
US3476102 *Sep 27, 1967Nov 4, 1969Sarnoff Stanley JThermal transfer garment and thermal transfer packet therefor
US3512516 *Jun 4, 1968May 19, 1970Meyers Jerome ICombined food packaging and food cooking device
US3556290 *Apr 17, 1968Jan 19, 1971Int Scanatron Systems CorpLong life packaging of electrolytic recording paper and the like
US3561435 *Nov 15, 1968Feb 9, 1971Dev IncCombined splint and coolant container
US3628537 *Apr 6, 1970Dec 21, 1971Hardenbrook Harry JSelf-retaining cold wrap
US3643665 *Apr 4, 1969Feb 22, 1972Kay Laboratories IncTherapeutic pack for thermal applications
US3741381 *Feb 24, 1971Jun 26, 1973Gillemont GSafety package assembly and divides clamp therefor
US3893834 *Mar 4, 1974Jul 8, 1975Arthur E ArmstrongInsulated cold pack
US3913559 *Feb 7, 1972Oct 21, 1975Kay Laboratories IncConstant temperature device
US4092982 *Apr 16, 1976Jun 6, 1978Salem Nazih M NTherapeutic wrap
US4130198 *Mar 27, 1978Dec 19, 1978Minnesota Mining And Manufacturing CompanyMulti-part liquid container
US4139004 *Feb 17, 1977Feb 13, 1979Gonzalez Jr HarryBandage apparatus for treating burns
US4204543 *Jan 6, 1978May 27, 1980Henderson Mary MCoolant band
US4326533 *Oct 29, 1979Apr 27, 1982Henderson Mary MCoolant band
US4361227 *May 4, 1981Nov 30, 1982Jeno's, Inc.Display package
US4382446 *Oct 23, 1980May 10, 1983Kay Laboratories, Inc.Heat transfer devices for the scalp
US4473370 *Sep 14, 1981Sep 25, 1984Weiss Jeffrey NProtective eye shield
US4509750 *Mar 25, 1981Apr 9, 1985Last Anthony JSurface vibration absorbing strap
US4575097 *Jun 1, 1984Mar 11, 1986Fastencold, Inc.Therapeutic device and method for forming and using same
US4592582 *Dec 20, 1984Jun 3, 1986Usv Pharmaceutical CorporationBag clamping arrangement
US4619678 *Jul 12, 1985Oct 28, 1986Howard RubinApparatus and method for transporting and preserving perishable test samples
US4664257 *Apr 23, 1981May 12, 1987Kenova AbMethod and capsule for storing and mixing the two co-operative basic materials of dental amalgam and method in manufacturing the capsule
US4669476 *Jun 22, 1981Jun 2, 1987Becton, Dickinson And CompanyCold application and compressive bandage
US4731053 *Dec 23, 1986Mar 15, 1988Merck & Co., Inc.Container device for separately storing and mixing two ingredients
US4736872 *Sep 4, 1987Apr 12, 1988National Patent Development Corp.Disposable tint pack assembly for contact lens tinting
US4753241 *Mar 10, 1986Jun 28, 1988Fastencold, Inc.Method of forming and using a therapeutic device
US4779735 *Jun 10, 1987Oct 25, 1988Mooney Chemicals, Inc.Wood-preservative package
US4851246 *Jul 6, 1987Jul 25, 1989General Mills, Inc.Dual compartment food package
US4905997 *Dec 28, 1988Mar 6, 1990Rainbow Star LicensingHeat Pod Body Muscle Treatment Device
US4905998 *Dec 28, 1988Mar 6, 1990Rainbow Star LicensingTennis elbow prevention and treatment device and method
US4922973 *Nov 17, 1988May 8, 1990Coil Matic, Inc.Collecting vessels for collecting refrigerants from heat exchange systems and methods
US4986076 *Aug 28, 1989Jan 22, 1991Kenneth KirkIsothermal cooling method and device
US4994056 *Nov 9, 1989Feb 19, 1991Ikeda Daniel PUnit dose medicament storing and mixing system
US5097568 *Jan 14, 1991Mar 24, 1992American Cyanamid CompanyDivider clamp assembly
US5110215 *Dec 21, 1990May 5, 1992Temple UniversityContainer for liquid crystal cumulative dosimeter
US5158364 *Dec 27, 1991Oct 27, 1992Temple UniversityMethod of making and using an improved liquid crystal cumulative dosimeter container
US5257985 *Mar 4, 1991Nov 2, 1993Richard PuhlMulti-chamber intravenous bag apparatus
US5353927 *Feb 24, 1993Oct 11, 1994Illinois Tool Works Inc.Plural compartment package
US5425447 *Nov 5, 1993Jun 20, 1995S.I.F.Ra. Societa Italiana Farmaceutici Ravizza S.P.A.Bag for containing at least two separate substances that are to be mixed
US5492219 *Jun 20, 1994Feb 20, 1996Illinois Tool Works Inc.Plural compartment package
US5604959 *Sep 28, 1995Feb 25, 1997Tecnol Medical Products, Inc.Ice pack clip
US5674270 *Jun 27, 1996Oct 7, 1997The Procter & Gamble CompanyThermal pad having a common attachment and oxygen permeable side
US5697962 *Sep 29, 1995Dec 16, 1997Dura-Kold CorporationTherapeutic wrap
US5728058 *Jun 29, 1995Mar 17, 1998The Procter & Gamble CompanyElastic knee wrap
US5728146 *Nov 8, 1996Mar 17, 1998The Procter & Gamble CompanyThermal neck wrap having wing shape and means for position maintenance
US5733321 *Apr 17, 1996Mar 31, 1998Dura-Kold CorporationConvertible therapeutic wrap
US5741220 *Apr 17, 1996Apr 21, 1998Dura-Kold CorporationJoint brace assembly and method
US5741318 *Jul 26, 1996Apr 21, 1998The Procter & Gamble CompanyElastic back wrap having diamond-shaped thermal pattern and anti-slip means
US5792213 *Nov 15, 1995Aug 11, 1998Tecnol Medical Products, Inc.Hot or cold chemical therapy pack
US5837005 *Mar 18, 1997Nov 17, 1998The Procter & Gamble CompanyThermal pad having a common attachment and oxygen permeable side
US5843145 *Jan 23, 1996Dec 1, 1998Dura-Kold CorporationReusable hot/cold temperature pack
US5956963 *Jan 16, 1997Sep 28, 1999Lerner; Irene K.Wrist cooler for relief of hot flashes and similar symptoms
US5967308 *Oct 21, 1997Oct 19, 1999Bowen; Michael L.Multi-compartment bag with breakable walls
US6036004 *Dec 3, 1997Mar 14, 2000Bowen; Michael L.Multi-compartment bag with breakable walls
US6074415 *Sep 22, 1998Jun 13, 2000Der Ovanesian; MaryHot or cold applicator with inner element
US6083256 *Jul 17, 1998Jul 4, 2000Der Ovanesian; MaryNNT or cold pad with inner element
US6233945Mar 6, 1999May 22, 2001Allegiance CorporationExtended life cold pack
US6248125Apr 23, 1996Jun 19, 2001Allegiance CorporationPerineal cold bubble
US6393843Jan 24, 2001May 28, 2002Allegiance CorporationExtended life thermal pack
US6564558 *Nov 14, 2001May 20, 2003Seymour Michael LDisposable self-cooling, self-heating container
US6648909May 11, 2001Nov 18, 2003Allegiance CorporationSolo perineal hot and cold pack
US6886982Sep 13, 2002May 3, 2005Kimberly-Clark Worldwide, Inc.Article of manufacture resulting from automated assembly of a multi-part closure device with a product
US6895763 *May 19, 2003May 24, 2005Michael L. SeymourDisposable container
US6904646Sep 13, 2002Jun 14, 2005Kimberly-Clark Worldwide, Inc.Multi-part closure device
US6959523Sep 13, 2002Nov 1, 2005Kimberly-Clark Worldwide, Inc.Process for automating the attachment of a clip to a product
US7175614Oct 17, 2002Feb 13, 2007Baxter International Inc.Peelable seal
US7546918Dec 19, 2006Jun 16, 2009Baxter International Inc.Peelable seal
US7678097Mar 16, 2010Baxter International Inc.Containers and methods for manufacturing same
US7717257 *May 1, 2007May 18, 2010Henkel CorporationMulti-section package for a mold release agent and a wipe
US7770611Aug 10, 2010Baxter International Inc.Peelable seal closure assembly
US8056726Mar 20, 2009Nov 15, 2011CDO Technologies, Inc.Method and apparatus for repairing a surface defect
US8505172 *Mar 29, 2010Aug 13, 2013Zafer TermaniniRemovable pouch partition
US9004761May 1, 2006Apr 14, 2015Baxter International Inc.Multiple chamber container with mistake proof administration system
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
US20040050019 *Sep 13, 2002Mar 18, 2004Kimberly-Clark Worldwide, Inc.Process for automating the attachment of a clip to a product
US20040052435 *Sep 13, 2002Mar 18, 2004Kimberly-Clark Worldwide, Inc.Article of manufacture resulting from automated assembly of a multi-part closure device with a product
US20040078023 *Oct 17, 2002Apr 22, 2004Paul-Andre GollierPeelable seal
US20050026126 *Jul 30, 2003Feb 3, 2005Hageman James H.Method for students to carry out chemical reactions
US20050194060 *Mar 3, 2004Sep 8, 2005Vincent HouwaertPeelable seal closure assembly
US20070088314 *Dec 19, 2006Apr 19, 2007Paul-Andre GollierPeelable seal
US20070144923 *Oct 26, 2006Jun 28, 2007Vincent HouwaertPeelable seal closure assembly
US20080202962 *Feb 23, 2007Aug 28, 2008Brouard Roger HTool bag
US20090000610 *Jul 14, 2005Jan 1, 2009Mycoal Products CorporationMicroheater and Process For Producing the Same
US20100236951 *Mar 20, 2009Sep 23, 2010CDO Technologies, Inc.Method and apparatus for repairing a surface defect
US20100293757 *Mar 29, 2010Nov 25, 2010Zafer TermaniniRemovable pouch partition
US20120180777 *Mar 19, 2010Jul 19, 2012Daniel YoungPouch for internal mixture of segregated reactants and applications thereof
US20140094780 *Aug 20, 2013Apr 3, 2014Medical Service GmbhWetting apparatus with releasable locked clamp
EP0185383A2 *Dec 20, 1985Jun 25, 1986Usv Pharmaceutical CorporationBag clamping arrangement
EP2468222A1 *Dec 22, 2011Jun 27, 2012MIC Medical S.r.lDevice for the application of cold
WO1982002751A1 *Feb 10, 1982Aug 19, 1982Kim HindsgaulMethod and tool for an airtight sealing of two foils
WO1991007205A1 *Nov 8, 1990May 30, 1991Ikeda Daniel PUnit dose medicament storing and mixing system
U.S. Classification62/4, 383/38, 206/221, 206/484, 206/219, 383/9, 126/263.9, 607/112
International ClassificationB29C65/56, F25D5/02, A61F7/10, A61F7/02
Cooperative ClassificationA61F7/106, F25D5/02, A61F2007/0276, B29C66/43, A61F2007/0001, F25D2400/26, B29C66/1122, B29C65/565
European ClassificationB29C66/43, B29C66/1122, B29C65/56F, F25D5/02, A61F7/10C