Abstract: A method and system for supplemental sleep detection is described. A system may receive data associated with a user from a wearable device worn by the user, and may detect a primary sleep period for the user based on the received data. The system may additionally detect a supplemental sleep period including a duration that exceeds a threshold duration based on the received data. In some implementations, the system may cause a graphical user interface (GUI) of a user device to display an indication of the detected supplemental sleep period, and may receive a confirmation of the supplemental sleep period via the user device and in response to the indication of the detected supplemental sleep period. The system may subsequently generate one or more insights associated with the user based on the primary sleep period and the supplemental sleep period and, in some implementations, in response to the confirmation.

Abstract: An air-conditioned mattress includes a mat device, a cover device, and an air-conditioning device. The mat device includes a first mat configured as a three-dimensional structure made from a plurality of elastic thermoplastic filaments that are randomly tangled with each other. The thermoplastic filaments are fixedly connected at contact portions of the thermoplastic filaments in a way that through holes are formed at non-contact portions of the thermoplastic filaments. The cover device covers the mat device and contacts the top surface of the first mat, and the first mat is more air-permeable than the cover device. The air-conditioning device is disposed inside or outside the mat device and provides heated air flow or cooled air flow into the first mat.

Abstract: The present invention relates to a portable boiler for a hot mat, which comprises: a water reservoir, one side of which has an inlet pipe for introducing water circulating through the hot mat, and which stores the water; a heat transfer unit in which the water discharged from the water reservoir flows along a flow channel pipe to be heat exchanged, wherein the water is discharged to the hot mat via an outlet pipe formed at one side thereof; a heating unit which burns the fuel gas fed from a fuel tank to heat the water in the heat transfer unit; and a housing which forms the outer appearance of the boiler.

Abstract: A portable heating system used to heat a person while in cold environments. A heating unit containing a fuel combustion chamber and a heat exchanger oxidizes a fuel to produce heat. The heat from the oxidation process is transferred to the fluid using the heat exchanger. The fluid either boils or simply becomes less dense than cooler fluid in the heat exchanger and thus more buoyant. Convection moves the heated fluid upwards in to a thin bladder encapsulating the fluid and held against a person. The elevated kinetic energy in the bladder creates an entropy differential to the person. This differential allows the kinetic energy in the bladder to flow to the person thus warming them. The fluid now having less energy, now denser, flows back down the bladder to the heating unit by gravity.

Abstract: A field ration packaging assembly includes a ration housing and a food tray. The ration housing includes a lid panel having at least one air exhaust vent and a wall panel having at least one intake vent. The food tray may be positioned above a heat source. The at least one air exhaust vent and at least one air intake vent may be in fluid communication such that upon activation of the heat source, air enters the ration housing through the at least one air intake vent, passes over the heat source and exits the ration housing at the at least one exhaust vent by natural convection.

Abstract: A water heater especially for bathroom includes a hair filter (1), a water self pumping pump (2), a heat exchanger (3), a water valve (5), a controller (6), an operator (7), three water flow resistance amplifiers (8) and a waste water tank (9). The heat exchanger can recover the heat from the waste water during bathing and preheat cold water. The waste water tank can reuse the waste bath water for flushing toilets. Said parts are assembled by pipes and electric circuits and arranged on the proper position in the bathroom.

Abstract: The present invention relates to a portable heat transfer apparatus designed to supply heat to an external heat load, such as a space-heating unit or a heating garment, in a manner to be usable in outdoor and other environments where it is difficult to receive a supply of electricity or fuel gas, and allows a ratio of LPG and air to be controlled so as to perform combustion in desirable conditions.

Abstract: A portable heat transfer apparatus comprises a mixture forming/supply device for producing a mixture of fuel gas and air, a heating unit including a heat collection casing, and a burner installed in the casing and formed with a combustion chamber having a flat surface. The burner includes a large number of holes formed on an upstream side thereof to extend up to the flat surface to allow the mixture injected into the chamber therethrough to combust in the chamber, and a porous solid radiant-heat conversion component to partly convert heat energy of exhaust gas from the combustion in the chamber into radiant heat energy. The conversion component defines at least a surface region of the chamber located opposite to a flame front produced close to the flat surface. The apparatus includes a heat-driven pump joined to the casing and receiving heat generated by the combustion, through the heat collection casing.

Abstract: A control system suitable for use with a bathing unit system having a water receptacle is provided. The control system comprises a heating module, a power source and a controller in communication with the heating module and the power source. The power source includes an energy storage member for storing energy collected from a solar panel, and is operative for supplying power generated from solar energy to the heating module. The controller is operative for causing the power source to supply power to the heating module at least in part based on first information derived from a temperature of the water within the water receptacle and second information derived from a condition associated with the power source. The controller is further operative for selecting between a first power source and a second power source for supplying power to the heating module.

Abstract: A warmer bag includes a casing, a warmer bag, a heating arrangement including a heating element for heating up a fluid contained in the warmer bag at an usable temperature, and a safety arrangement electrically coupling with the heating arrangement, wherein when the heat exchanging fluid is heated above the usable temperature, the safety arrangement automatically cuts off an electrical connection between the heating element and the external power source for preventing the fluid from being overheated.

Abstract: A catalytic heater supplies heated water that circulates to heat a diver's suit. An insulating housing closed at opposite ends by cap members defines a chamber containing a catalyst inside of a multi-tube heat exchanger. Fittings in the cap members pass water through the multi-tube heat exchanger to and from the suit, and a gas circuit flows mixed hydrogen and oxygen to the catalyst that reacts with the mixed hydrogen and oxygen to produce heat that heats the water in the multi-tube heat exchanger for the diving suit. Optionally, hydrogen may be mixed with oxygen from a breathing gas mixture so that after heating the water, the gases remaining may be breathed by the diver. The catalytic heater provides a safe, reliable source of warm water for active thermal protection of divers over a wide range of diving applications.

Abstract: A portable heat conducting apparatus which includes a gas catalyst combustion device having an air sucking ejector. The apparatus further includes a gas jetting nozzle connected to a gas cylinder via a gas control valve, a combustion catalyst, an ignition device, heat drive pump, and check valve. The heat drive pump includes a heating portion having a liquid heating recess. A check valve is disposed in each of the discharge and suction sides of the apparatus. The gas catalyst combustion device has a combustion chamber which accommodates the combustion catalyst, includes the heat drive pump's heating portion, and is made of excellent heat conducting material. An opening portion in the recess formed in the heat drive pump's heating portion is located to face upwards with respect to gravity, and the heat conducting apparatus further includes an operating-liquid circulating closed-circuit.

Abstract: A portable fluid heating unit which may be used for supplying warm water to divers which includes a three stage heat exchange system wherein a fluid source, such as sea water, is initially heated as it passes through coils within the heating unit firebox and is subsequently heated in a first heat exchange chamber surrounding the firebox, after which, the fluid is heated by heat exchange with the exhaust gases from the firebox in a second heat exchange chamber. The temperature of the fluid is continuously regulated to insure that the heated fluid being conveyed to a diver is maintained at a substantially constant temperature.

Abstract: A backpack-transportable, heated sleeping bag ground pad is provided for the hiker/camper which is extremely compact, simple to use and which may incorporate a variety of conventional outdoor heat sources, such as a campfire or simple kerosene or alcohol lamp, for example. The system basically includes a heating reservoir and miniature, battery-operated pump system to circulate heated water through flexible plastic tubing embedded in a standard sleeping bag ground pad.

Abstract: Portable apparatus for supplying hot water to a diver's suit and which has a portable water pump that can be located closely adjacent a water source so as to minimize the lift required by the pump, a compressed air source that normally furnishes compressed air to the breathing apparatus of the diver and which is also used to drive the water pump by means of an air motor, a portable water heater having a source of fuel for heating the water is connected to the discharge side of the water pump for receiving cold water and heating it, the hot water is discharged from the heater and is mixed with cold water to the desired temperature and then furnished to the diver's suit. All of the components of the apparatus are portable and the entire system is flexible as to its location and set-up, there being no fixed apparatus or installations required.

Abstract: A portable heating system for individuals which system includes a heating device for heating a quantity of fluid, an energy source for supplying a fuel to the heating device and an emitting device operatively connected with the heating device for emitting a quantity of heat. The energy source, the heating device and the heat emitting device are constructed as a structural unit with the heat emitting device being insertable into a sheath surrounding an individual so as to provide for the thermal requirements of the individual.

Abstract: A hand-warming and liquid-heating unit comprising a catalytic heater with a liquid-containing chamber removably affixed thereon with means to open said chamber and, in an additional embodiment, auxiliary heating means for temperature regulation of said liquid.

Abstract: A diver's gas heater, for use with a hot water heated suit, to heat the diver's breathing gas for added comfort in cold water. Hot water from a surface installed source is pumped through a hose to the diver's suit and the heater is installed directly in the hot water supply hose. The hot water passes through a tubular heat exchanger and the breathing gas flows through an annulus around the water conducting tube. A portion of the hot water is tapped off to maintain heating around the short length of breathing gas hose between the heat exchanger and the diver's helmet.