Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7942145 | Rechargeable self-heating food container A rechargeable, self-heating food container includes an inner chamber with a supersaturated salt solution and trigger means for initiating crystallization of the supersaturated salt solution. A rechargeable element for heating food includes a cylinder containing a s... | 05/17/2011 |
| 7316265 | Method for passive phase change thermal management In one embodiment, a method includes forming a conductive structure having a cavity, injecting a phase change material into the cavity, injecting a plurality of spheres into the cavity, and sealing the cavity. ... | 01/08/2008 |
| 7243788 | Package for segregating and mixing substances The present invention relates to a package that includes an enclosure having a first substance and a second substance within the enclosure. The package further includes a plastic zipper which segregates the first substance from the second substance within the enclos... | 07/17/2007 |
| 7182778 | Conforming thermal pack A flexible thermal pack to be intimately applied to a patient's body is in the form of a plastic container enclosing a chemical compound capable of an endo- or exo-thermic reaction when intermixed with a catalyst. The plastic container has a vent in one wall covered... | 02/27/2007 |
| 7128275 | Liquid warming device with basin A liquid warming device for heating sterile fluids in a removable basin is described with emphasis on the properties of the basin interaction with the liquid warming device and with a drape that works with the basin to maintain a sterile field above the drape and th... | 10/31/2006 |
| 7080641 | Method and apparatus for heating sterile solutions during medical procedures An apparatus which is self-contained, disposable, and heated utilized for maintaining and heating sterile solutions during medical procedures. The heating mechanism is chemical, electrical or a combination of both. Further the apparatus serves as a self sealing cont... | 07/25/2006 |
| 6537309 | Reusable heat pack, method of manufacture thereof, mixture for use in a reusable heatpack and process for the preparation thereof The invention discloses a reusable heat pack comprising a soft sealed plastic bag containing a mixture of supercooled supersaturated recrystalizable solution of inorganic substance, alcohol, chemical compound additives, and means to trigger recrystallizat... | 03/25/2003 |
| 6318359 | Heat pack using super-cooled aqueous salt solutions A heat pack containing a super-cooled aqueous solution is provided comprising a flexible container having at least two compartments separated by a rupturable seal housing an aqueous solution in one compartment and having the other compartment remain empty... | 11/20/2001 |
| 6309598 | Electrochemical heater and method for sterilizing An electrochemical heating pad includes a corrugated sheet having alternating peaks and valleys defining channels of elongated compartments having sidewalls between the peaks and valleys. A dry mixture operable to be wetted and activated with an electroly... | 10/30/2001 |
| 6283116 | Trigger for a portable heat pack A triggering element for a portable heat pack having a sealed bag capable of transferring heat and a sodium acetate solution that generate a crystallization heat contained in said sealed bag. The triggering element comprises a thin, flexible strip of stai... | 09/04/2001 |
| 6247469 | Warmer for a sporting element A warmer for a sporting element used for striking another element, the sporting element to be warmed including a sidewall having a predetermined shape enclosing a space, the warmer including an inner layer of thermally conductive material defining a cavit... | 06/19/2001 |
| 6178963 | Heat pack Disclosed is a heat pack A heat pack comprising a flexible container; a solution which is filled in the container and generates a heat while be crystalizing; a trigger which is disposed in the container to be in contact with the solution, for making the s... | 01/30/2001 |
| 6103139 | Single-use encapsulated hot pack activator An activator (10) made in accordance with the principles of the present invention includes activating crystals (11) that have been formed into a shape and then coated with coating (12). The activator (10) of the present invention can be used in any enviro... | 08/15/2000 |
| 6079404 | Article for thermal energy storage A thermal energy storage composition is provided which is in the form of a gel. The composition includes a phase change material and silica particles, where the phase change material may comprise a linear alkyl hydrocarbon, water/urea, or water. The therm... | 06/27/2000 |
| 6029651 | Hot cup adapted to retain fluid contents heated for extended periods of time Disclosed is a hot cup system. The system has a generally cylindrical exterior member with a cylindrical side wall and with an open upper end and an open lower end. The exterior member is molded from a thermally insulating elastomeric material. The system... | 02/29/2000 |
| 5954119 | Heat accumulator A heat accumulator for storing latent heat wherein said latent heat is evolved by applying an electric voltage. The heat accumulator comprises a heat storage material, a pair of spaced electrodes consisting of an anode and a cathode disposed inside said h... | 09/21/1999 |
| 5915461 | Heat pack and trigger apparatus A heat pack including apparatus for triggering the crystallization of a supercooled salt solution in the heat pack, wherein the supercooled salt solution is sealed within a flexible package. The apparatus comprises a solid trigger device, and a packet hav... | 06/29/1999 |
| 5791334 | Heat pack resistant to saddle-bagging A heat pack for use as a warmer mattress for infants is formed of a flexible container at least partly filled with a supercooled aqueous salt solution which is selectively trigger-activated to produce heat by exothermic crystallization. The container is c... | 08/11/1998 |
| 5662096 | Trigger to activate supercooled aqueous salt solution for use in a heat pack A trigger to initiate crystallization of a supercooled aqueous salt solution of a heat pack, thereby liberating heat. The trigger, when activated, pierces the container, allowing the salt solution to contact salt crystals, and initiate crystallization of ... | 09/02/1997 |
| 5339796 | Reusable warmers of the type employing a super-cooled solution and an activator The present invention provides reusable warmers of the supersaturated solution type that are substantially free of saddlebagging. The warmers also exhibit a more sustained period of time during which the heat pack remains within a therapeutically useful t... | 08/23/1994 |
| 5205278 | Chemical bag warmer An improvement of a chemical bag warmer, which comprises a soft bag filled with a sodium acetate solution, and mounted therein with a triggering member; the triggering member is a disc-shaped member, of which the center portion is a cross-shaped part exte... | 04/27/1993 |
| 4953628 | Latent heat storage apparatus A latent heat storage apparatus for obtaining sure latent heat from a latent heat storage material includes a plurality of small chambers for encasing at least the latent heat storage material. A capillary member is provided between the plurality of small... | 09/04/1990 |
| 4888188 | Disposable food feeder package An inexpensive disposable sanitary sealed food package extrudes paste-like food products to a feeder implement, such as a spoon, fork, or projecting knife therefrom. The package is in the form of a squeeze tube with a nozzle discharging to the feeder impl... | 12/19/1989 |
| 4880953 | Method of recharging a heat pack by microwave energy The invention is in a method of recharging or regenerating a substantially solid spent heat pack of the type in which a super-coolable salt solution is confined within a flexible plastic pouch and converted to solid form with evolution of heat, by contact... | 11/14/1989 |
| 4865012 | Reusable cold pack for medical usage A thermo pack for heating or chilling body portions comprising a mixture of water, salt, cellulose and flour sealed in a pliable bag.... | 09/12/1989 |
| 4860729 | Method and apparatus for nucleating the crystallization of undercooled materials A method of storing and controlling a release of latent heat of transition of a phase-change material is disclosed. The method comprises trapping a crystallite of the material between two solid objects and retaining it there under high pressure by applyin... | 08/29/1989 |
| 4850424 | Heat accumulator A heat accumulator includes a heat storage tank and a latent heat accumulating material which fills the tank. The heat accumulating material remains in a stable supercooled condition at temperatures lower than a predetermined phase transformation temperat... | 07/25/1989 |
| 4817704 | Latent heat storage apparatus A latent heat storage apparatus for obtaining a sure latent heat from a latent heat storage material includes a plurality of small chambers for encasing at least the latent heat storage material. A capillary member is provided between the plurality of sma... | 04/04/1989 |
| 4587950 | Heat pack apparatus A reusable heat pack containing a solution of a salt hydrate capable of being supercooled to provide heat of crystallization upon inducement of crystallization, the heat pack being provided with a reusable trigger mechanism located on the surface of the h... | 05/13/1986 |
| 4580547 | Flexible heat pack containing super cooled salt solution A heat producing apparatus includes a plastic container having flexible walls which are interconnected along a linear zone or zones; a supercooled salt solution is in the container, to be triggered and crystallized, to produce heat; and a trigger floats i... | 04/08/1986 |
| 4533483 | Heat source providing a substantially constant temperature A heat source includes a cartridge which contains a first chemical having properties for maintaining a liquid state below its particular melting point. A second chemical, which can be introduced through a valve into the cartridge, triggers the crystalliza... | 08/06/1985 |
| 4503838 | Latent heat storage and supply system and method Latent heat storage and supply system and method in which a body of crystallizable phase change material and a separate body of a special crystallization nucleator for the phase change material are associated for heating as a unit to melt the phase change... | 03/12/1985 |
| 4451383 | Recyclable hot pad A liquid melt becomes converted to crystalline form at a particular temperature either spontaneously or when artificially nucleated. The liquid releases heat at crystallization. If the liquid is in a supercooled state when it begins to crystallize, its te... | 05/29/1984 |
| 4361491 | Supercooled fluids and methods of producing such supercooled fluids This invention relates to a method of producing articles which generate heat at a substantially constant temperature for an extended period of time and which are able to remain in a stable state until such time as the generation of heat is desired. The me... | 11/30/1982 |
| 4295517 | Reusable heat devices containing xylitol as the heat-storage material Both heat devices containing a supercooled xylitol and the use of supercooled xylitol as a heat source are disclosed.... | 10/20/1981 |
| 3951127 | Constant temperature device A flexible container having a substantially planar configuration encloses a first chemical having characteristics for being supercooled to maintain a liquid state even at temperatures below its melting point. A second chemical can be mixed with the first ... | 04/20/1976 |
