Referring now to FIGS. A mixture of 82.5 grams magnesium 5 atomic weight percent iron supercorroding alloy is blended with 5.5 grams NaCl, 3.3 grams antifoaming agents, and 7.7 grams inert filler is prepared. 8. The soldier adds the water to the heater bag 104 until it reaches the fill line 106, as shown in FIG. 4 is a graph illustrating the heat output of the first embodiment of the invention as compared to a prior art heater; FIGS. Certain of the foregoing and related objects are readily attained in a flameless heater, comprising a first sheet of relatively flexible polymer which is gas and water permeable but will not permit the passage of the powdered ingredients, a second sheet of relatively flexible polymer which is gas and water permeable, said first and second sheets being bonded to each other so as to form a plurality of pockets, and an effective amount of a powder mixture of chemicals which react exothermically in the presence of water, said powder mixture being substantially evenly distributed among and contained within the pockets. 6 and 7 activated and supporting a food pouch in a tray. ... 5611329: March 18, 1997 Lamensdorf 5935486: August 10, 1999 Bell et al. The outer surfaces of the polyester sheets are preferably treated with a food grade surfactant. In the Kuhn patent, a flameless heater comprised of an exothermic super-corrosive alloy of magnesium and iron is sintered into large single shapes that generally conform to the container for the product. Maximum length is 128 characters for Customer Application No. 5d. It will therefore be appreciated by those skilled in the art that yet other modifications could be made to the provided invention without deviating from its spirit and scope as so claimed. The byproducts of the chemical reactions cause the pockets to inflate slightly thereby adding sufficient rigidity to the heater to support a food packet. The outer surface of the sheets 12, 14 is then preferably coated with a surfactant which helps water permeate the sheets. 10. It is then placed on an incline by leaning it against a rock or other object 108 as shown in FIG. Sorry, intended action could not be completed due to payment failure. To use the heater, the top of the bag is opened and water added until the water level reaches preprinted fill lines on the bag. Therefore, even minor reductions in the overall weight and volume of an FRH can effect a substantial reduction in shipping weight and volume and thereby reduce shipping costs as well as storage space and costs. When activated with 45-65 milliliters of water, the heater generates enough heat to raise the temperature of an 8 ounce food package 100Â° F. above its starting temperature within 12 minutes. The File Wrapper for Patent Number The proposed "Self-Heating Group Meal" ("SHGM") is described in U.S. Pat. in all categories (Watch). valves comprising at least one elastic element, MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING, COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR, Apparatus or devices using heat produced by exothermal chemical reactions other than combustion, ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION, Self-contained meal assembly with steam vent, High flow/volume valve for flexible packaging, Disposable food heating pouch having water discharge/inflow prevention structure, Method for applying an exothermic coating to a substrate, Self-heating systems and methods for rapidly heating a comestible substance, Self-contained hot meal assembly with steam vent, Adiabatic heating and cooling process and portable devices in accordance with the adsorption principle, Two part container adapted to separately hold consumable foodstuffs, Flameless heater and method of making same, Food storage bags with multiple compartments, Food packaging body and method for cooking food, System and method for providing a self cooling container, Food package and method for heating food package, Container assembly for warming beverages and method of forming and using it, Heating and cooling lunch box with intake air opening, Information on status: application discontinuation. Upgrade to our Level for up to -1 portfolios!. 5a). Justia Patents Inorganic Reactant Other Than Sulfur Containing US Patent for Heater Patent (Patent # 9,345,361) Heater . The heater 110, thus described generates sufficient heat to warm the food packet 242 to 100° F. above its starting temperature in less than 12 minutes. It is then placed on an incline by leaning it against a rock or other object 108 as shown in FIG. 5,611,329 issued to Lamensdorf. Turning now to FIG. When water is added to the container 40, it permeates the sheets 12, 16, and initiates exothermic chemical reactions in the pockets 28, 30, 32, 34. US20120145716A1 US12/967,374 US96737410A US2012145716A1 US 20120145716 A1 US20120145716 A1 US 20120145716A1 US 96737410 A US96737410 A US 96737410A US 2012145716 A1 US2012145716 A1 US 2012145716A1 Authority US United States Prior art keywords pack compartment thermal pack panel pair Prior art date 2010-12-14 HEATING DEVICE. Fees and payment. 5e so that the heater 10 is below the food pouch 42 and the top of the pouch 104 is elevated. When water is added to the container 240, it permeates the sheets 112, 116, and initiates exothermic chemical reactions in the pockets 132, 134, 136, 138, 140, 142. The heating element comprises a plurality of effective ingredients including powdered aluminum, calcium oxide, calcium carbonate, calcium dihydroxide, sodium carbonate and sodium hydroxide. said heater has overall dimensions of approximately 12.75" by approximately 9.75" by approximately 0.16" thick. Patent Buddy offers a free search of patents, inventors and current patent owners. Check patent application status with public PAIR and private PAIR. Please note that data in portions of the Examination Report will not be meaningful if: A. Aluminum powder having 99.7% and above of Al metal purity, 0.8 to 1.11 g/cm, The blend of powdered aluminum, calcium oxide, calcium carbonate, calcium dihydroxide, sodium carbonate and sodium hydroxide specified above is most preferably contained within a non-woven porous pouch, and is called the âelement.â The element is placed in a waterproof bag, such as a sealed bag manufactured from aluminum foil wrap such as PET12/AL7/LLDPE40 material. Free format text: This supercorroding alloy is blended together with ultrahigh molecular weight ("UHMW") polyethylene powder, fillers, and electrolyte, the powder mixture being placed in a mold and the mixture heated to sinter it. The components of the state-of-the-art FRH and the sintering method for forming a flexible structure of those ingredients are described generally in U.S. Pat. The reaction takes the general form of: Mg+2H2 OâMg(OH)2 +H2 +heat (and steam). The present invention generally relates to the field of food preparation and relates more specifically to expedient food preparation techniques and methods. When the pad is placed within the paperboard cover, the overall thickness increases to approximately 0.170". It is still another object of the invention to provide an flameless heater which may be made in various sizes for use in MRE, SHGM or any commercial food package. 4 where the vertical axis is the temperature rise in degrees Fahrenheit and the horizontal axis is the elapsed time in minutes. Find upcoming programs related to IP policy and international affairs. The tablets are smooth-surfaced without protuberances so they can be distributed without interference from one another. Analytics - Patent Watching & Rating Tutorial, Analytics - Patent Citation Ranking Tutorial, Analytics - International Classification Tutorial, Current tags: (To remove a tag, hover The byproducts of the chemical reactions exit the pockets through the permeable sheets and are directed away from the reaction via the channels. g) coating said first and second sheets with a surfactant. There have been described and illustrated herein several embodiments of a flameless heater for heating rations in the field. Please note that data in portions of the Examination Report will not be meaningful if: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TRUETECH, INC.;REEL/FRAME:034574/0632. Study finds the number of women entering and staying active in the patent system is at an all-time, Hirshfeld will continue leading the agency’s largest and most complex business unit. In use, both the channels and the permeability of the sheets allow water to wet the powder rapidly and initiate the chemical reactions quickly. The resulting heater can be made approximately 50% thinner and 50% lighter than a conventional FRH. Still another is shown in U.S. Pat. 3 is a side elevation view in partial section of the heater of FIGS. 1 and 2, a flameless heater 10 according to the invention is made from a pair of non-woven substantially rectangular gas and water permeable plastic sheets 12, 14. 5,465,707. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). For example, those skilled in the art will understand that additional preferred embodiments of the element and bag, as well as the methods described herein could be readily adapted for use in other heating applications as well. The polyester sheets are gas and water permeable over substantially their entire surfaces and the filled pockets define intervening channels where the polyester sheets are bonded. It is also an object of the invention to provide an FRH which occupies less volume than conventional FRH units. 1 prior to activation; FIG. | Not registered? Moreover, it is often the case that group meals are prepared in the field by one or two soldiers to feed anywhere from 20 to 200 soldiers. heating generated by the reaction of two chemicals, FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL, KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES, Parts, details or accessories of cooking-vessels, Warming devices generating the heat by exothermic reactions, e.g. The heater 110, thus described generates sufficient heat to warm the food packet 242 to 100Â° F. above its starting temperature in less than 12 minutes. The calcium hydroxide, calcium dihydroxide, powdered sodium carbonate, and sodium hydroxide is reacted in a second reaction step with the powdered aluminum to generate heat of reaction to make use of approximately 3886 cal/g as the sum of the heat of reaction generated at the first reaction step and second reaction step, which can achieve temperatures of approximately 212Â° F. (100Â° C.).
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