how to make a flameless ration heater

A flameless heater includes two non-woven polyester sheets which are thermally bonded together to form a number of pockets. The plot A is the temperature rise of a food pouch heated by the invention and the plot B is the temperature rise of a food pouch heated by a current field ration flameless heater. This heat can be used for cooking while camping without a fire (i.e. 3, the heater 10 may be used by placing it in a tray 40 or other container as described further herein below and by placing a food pouch 42 on top of the heater 10. In lieu of the paperboard cover, the heater pad cover is made of a molded rigid polymeric bottom layer and a porous non-woven polypropylene top layer. At this very moment you're most likely not in a situation where you lack access to the normal materials to start a fire, however, there is a chance that one day you will be. In use, both the channels and the permeability of the sheets allow water to wet the powder rapidly and initiate the chemical reactions quickly. A flameless heater according to claim 12, wherein: said heater has overall dimensions of approximately 12.75" by approximately 9.75" by approximately 0.16" thick. John Walter is an emergency preparedness consultant with eight years of experience and training in related fields. Neutralizing vinegar with baking soda forms a solution containing sodium acetate, water, and carbon dioxide. To activate the heater, a soldier adds a little water. Save my name, email, and website in this browser for the next time I comment. Also, the civilian MRE vendors are often more reliable. link to How to Start a Fire with a Battery and Steel Wool, link to Why Preppers Should Carry Lipstick: 15 Great Survival Uses. and 4,264,362 to Sergev et al., the complete disclosures of which are hereby incorporated by reference herein. Yes, you can cook your MRE without using the flameless heater. MRE is an acronym for “. The Flameless Ration Heater provides the ability to enjoy a hot meal in any challenging environment, helping to sustain and protect life. Upon adding 30 milliliters of water, this mixture can heat a 230 gram meal packet by 100 °F (38 °C) in about 10 minutes, releasing approximately 50 kilojoules of heat energy at about 80 watts.[5]. FIG. 1 and 2 activated and supporting a food pouch in a tray; FIG. According to the Army, MREs are intended to be used for up to 21 days, while still being supplemented with fresh rations. How do I know if my MRE is still safe to eat? A presently preferred embodiment of an flameless heater according to the invention for use with an SHGM system is simply a scaled up version of the FRH used with an MRE. It is essentially a customizable outer bag with a heater pad inside it. 5d. Despite all of the work that has been put into making MREs nutritionally valuable, the fact is they were never meant to be used on a prolonged basis. Turning now to FIG. Not good. Frequently, the civilian MREs are in better condition than their military counterparts. The exothermic reactions generate a heated gaseous byproduct which inflates the pockets rendering the heater relatively rigid, and the gaseous byproducts exit the pockets through the first and second gas permeable sheets and the gaseous byproducts are directed away from the pockets by the channels. Nos. Before you purchase pallets of MREs for your bug out location, I strongly suggest you taste a few first to see if they’re something you and your family can eat. This performance is required by Military Specification MIL-R-44398B (Sep. 20, 1993). 12. There are several ways to cook your food ranging from using a hot car engine, heat packs, solar cookers, flameless ration heaters, portable electric cookers, mixing vinegar with baking soda, and pre-cooked food recipes. This substance consists of a very specific ratio of magnesium powder, salt, and iron powder. It is also an object of the invention to provide an FRH which meets or exceeds the performance requirements of Military Specification MIL-R-44398B. Flameless heater and method of making same. A method according to claim 15, wherein: 17. However, when cooking you will require a constant source of electricity such as a generator or a good battery throughout the cooking. Click here to read more about MRE shelf life. It is always desirable to reduce the total amount of weight and volume which must be carried by a soldier or camper in the field, or by support elements. You consent to our cookies if you continue to use our website. 14. The pre-cooked food recipes are considered old school but trust me in one way or the other, old is gold. 1 is a partially cut away plan view of a first embodiment of the flameless heater according to the invention; FIG. I am Antony Michael and together with my friends we love overlanding especially rooftop camping and everything surrounding it. As seen in FIG. A flameless heater according to claim 1, wherein: said powder mixture weighs approximately 99 grams. Use the igniter to light the stove and you are ready to cook. 6 is a view similar to FIG. 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. A different can may have the chemical in the inner chamber and food or beverage in the outer chamber. The outer surfaces of the polyester sheets are preferably treated with a food grade surfactant. 5c. Grocery stores can be highly unreliable during natural disasters and emergencies, so it’s wise to stockpile long-lasting food like these, just-in-case. Mg + 2H2O → Mg (OH)2 + H2 You will put powdered magnesium and powdered iron together into a container, and add water to initiate the chemical reaction. f) bonding said first and second sheets along the periphery thereof and along a plurality of substantially parallel lines so as to seal said pockets and define intervening channels between said pockets. 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. Because the magnesium and iron particles are in contact, they become thousands of tiny short-circuited batteries, which quickly burn out, producing heat in a process the patent holders call "Supercorroding Galvanic Cells". The trays are typically 13"×10"×1.5" deep and use slightly modified versions of the FRH packages (12.75"×9.75"×0.156") described in the above-cited '190 and '809 patents. 13. United States military specifications for the heater require it be capable of raising the temperature of an 8-ounce (226.8 g) entrée (American English for main course) by 100 °F (38 °C) in twelve minutes, and that it has no visible flame. 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. Turning now to FIG. If you don’t know how to properly eat an MRE, or prepare one that has a flameless heater, you should. A method of making a flameless heater, comprising the steps of: a) providing a first substantially rectangular sheet of relatively flexible polymer which is gas and water permeable; b) providing a second substantially rectangular sheet of relatively flexible polymer which is gas and water permeable; c) forming spaced-apart pockets in at least one of said sheets; d) preparing a powder mixture of chemicals which react exothermically in the presence of water; e) filling said pockets with said powder mixture; and. A flameless ration heater (FRH) is a form of self-heating food packaging included with meals, ready-to-eat (MREs), used to heat the food. MREs are the primary food ration of the United States Armed Forces during combat operations. The byproducts of the chemical reactions cause the pockets to inflate slightly thereby adding sufficient rigidity to the heater to support a food packet. MREs are offered in a few dozen different menu combinations, but all military style MRE bags contain the following: Preparing an MRE to eat using a flameless ration heater is incredibly easy. Flameless MRE heaters are single use only. 3. Cooking by fire has been considered a norm by most people while in the wild due to a number of obviously perceived advantages. The pad is packaged within a paperboard cover having holes die cut through each side and then is hermetically sealed within a high density polyethylene bag of sufficient size to hold the heater and a filled MRE pouch. No. A typical sintered pad is approximately 3.5"×4.5"×0.125" and weighs approximately 21 grams. If the engine is not already hot, revving the vehicle up or placing a weight in the gar pedal (stone or wooden block) while in parking position will heat the engine up. Approximately 15 minutes the meal is ready. amzn_assoc_tracking_id = "wolonhub-20";
A method according to claim 15, wherein: 19. They are a high-energy food source, but are not meant to sustain a balanced diet over an extended period. Your email address will not be published. amzn_assoc_placement = "adunit0";
For instance, if they were stored at 120 degrees, the shelf life would be only about one month. Based on many years of camping experience coupled with research, I have found various methods to cook while camping without a fire. In short, do yourself a favor and don’t eat too many. A flameless ration heater is self-contained in nature. FIGS. It is economical as one uses the available resources in the forest among others. The outer surface of the sheets 112, 114 is then preferably coated with a food grade surfactant which helps water permeate the sheets. There are plenty of other long-term food options out there! The first and second sheets along a plurality of substantially parallel lines and along the periphery thereof are bonded so as to seal the pockets and define intervening channels between the pockets. Water oxidizes magnesium metal, according to the following chemical reaction: Mg + 2H 2 O → Mg(OH) 2 + H 2 + heat. To start cooking, always confirm the fuel is adequate. According to the Army, MREs are intended to be used for up to 21 days, while still being supplemented with fresh rations. Water is added until the marked water line is reached. If your day isn’t as intense, you can probably get by with 1-2 MREs a day without an issue. I'm also a passionate prepper. Each pocket is filled with a powder mixture of Mg--Fe alloy, NaCl, antifoaming agents, and an inert filler. To activate the reaction, a small amount of water is added, and the boiling point of water is quickly reached as the exothermic reaction proceeds.[1]. 5,355,869, the complete disclosure of which is hereby incorporated by reference herein. Our mission is to share our day to day camping experiences and gear. In accordance with a preferred embodiment of the invention as discussed in detail below, the flameless heater of the present invention includes two non-woven polyester sheets which are thermally bonded to form a plurality of pockets. These heat packs also come in handy if you are wondering how to keep warm while camping without a fire especially with the widespread fire ban. FIG. Click here to read more about MRE shelf life. As long as the inside circle is still lighter than the outside ring, the MREs inside should be okay to eat. It is still another object of the invention to provide an FRH which requires less water to activate than conventional FRH units.

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