389results about How to "Prevent heat loss" patented technology

A system for treating a target region in tissue beneath a tissue surface comprises a probe for deploying an electrode array within the tissue and a surface electrode for engaging the tissue surface above the treatment site. Preferably, surface electrode includes a plurality of tissue-penetrating elements which advance into the tissue, and the surface electrode is removably attachable to the probe. The tissue may be treated in a monopolar fashion where the electrode array and surface electrode are attached to a common pole on an electrode surgical power supply and powered simultaneously or successively, or in a bipolar fashion where the electrode array and surface electrode are attached to opposite poles of the power supply. The systems are particularly useful for treating tumors and other tissue treatment regions which lie near the surface.

A method and device for blood treatments that use fluids such as dialysate and replacement fluid for renal replacement therapy. In an embodiment, fluid is passed either by pump or passively by gravity feed, through a microporous sterilization filter from a fluid source to a replacement fluid container. The latter forms a batch that may be used during treatment. The advantage of forming the batch before treatment is that the rate of filtering needn't match the rate of consumption during treatment. As a result, the sterilization filter can have a small capacity. In another embodiment, a filter is placed immediately prior to the point at which the sterile fluid is consumed by the treatment process. The latter may be used in combination with the former embodiment as a last-chance guarantee of sterility and / or that the fluid is free of air bubbles. It may also be used as the primary means of sterile-filtration.

Blood treatment system and method for high rate hemofiltration ensures against pyrogenic patient reaction by providing various mechanisms for filtering replacement fluid to remove endotoxins and other safety features including detecting incorrect fluid administration.

A portable baking oven for a pizza or other food item includes a food item heating plate, a base having a heating chamber, and a top cover having a moisture vent and a heat reflector structure extending across the inside of said top cover. When placed on said base, the top cover forms a baking chamber above the heating plate. Heat produced in the base's heating chamber circulates up through air passageways in the base into the baking chamber above the food item heating plate. This circulated heat is reflected back down toward the food item heating plate by the top cover's heat reflecting structure to accelerate baking of the top of a food item placed on the heating plate. The top cover's moisture vent can be located above the heat reflector structure in the top cover, and openings can be provided in the heat reflector structure which allow moisture emitted by a food item being baked in the oven to pass through the reflector structure and out through the top cover moisture vent.

Condensation management techniques for a gas flow delivery system. The techniques include providing a radiant barrier associated with patient circuit and / or a patient interface, providing a water trap and / or an absorbent insert in the patient interface device, or a combination of these techniques. The radiant barrier prevents condensation from forming in the patient circuit and / or the patient interface. The water trap and absorbent insert in the patient interface control condensation that reaches or forms in the interior of the patient interface to prevent it from interfering the user of the gas delivery system.

A system for treating a target region in tissue beneath a tissue surface comprises a probe for deploying an electrode array within the tissue and a surface electrode for engaging the tissue surface above the treatment site. Preferably, surface electrode includes a plurality of tissue-penetrating elements which advance into the tissue, and the surface electrode is removably attachable to the probe. The tissue may be treated in a monopolar fashion where the electrode array and surface electrode are attached to a common pole on an electrode surgical power supply and powered simultaneously or successively, or in a bipolar fashion where the electrode array and surface electrode are attached to opposite poles of the power supply. The systems are particularly useful for treating tumors and other tissue treatment regions which lie near the surface.

A radiant floor heating system and method of installation is provided, the system of the present invention being disposed within a solidified cement or under board. A panel member having a laminated reflective material which serves as a thermal break is placed upon the hardened cement or under board. The panel member may be comprised of any substance to which the reflective material may be secured such as a honeycombed plastic panel to which the reflective material layer is laminated. A heating element is disposed on the reflective material. Thereafter, both the heating element and the reflective layer are coated with a layer of thin set or cement. The heating element may include a heated wire element which is unwound off a roll, or the heating element may be meshed within a web of material which is cut to match the dimensions of the floor and then disposed on top of the reflective layer. After the thin set or cement dries with the heating element embedded within, marble or other types of tiles may be laid as flooring.

A modular neonatal intensive care system including an infant incubator, bassinet and frame is provided. The infant incubator of the present disclosure is configured for reducing the overall cost and / or minimizing the amount of power that the neonatal care system or infant incubator draws. A number of the features also make the design more appropriate for the conditions in developing countries. The neonatal care system is also integrated with a hospital bassinet which is made up of a bassinet bed and a frame. The frame for the bassinet acts as both a structural support system and a means for transportation when the neonatal care incubator is attached at the top of the frame.

The modular heated cover is disclosed with a first pliable outer layer and a second pliable outer layer, wherein the outer layers provide durable protection in an outdoor environment, an electrical heating element between the first and the second outer layers, the electrical heating element configured to convert electrical energy to heat energy, and a thermal insulation layer positioned above the active electrical heating element. Beneficially, such a device provides radiant heat, weather isolation, temperature insulation, and solar heat absorption efficiently and cost effectively. The modular heated cover quickly and efficiently removes ice, snow, and frost from surfaces, and penetrates soil and other material to thaw the material to a suitable depth. A plurality of modular heated covers can be connected on a single 120 Volt circuit protected by a 20 Amp breaker.

A tobacco baking device, including: an upper housing, an inner frame, an electrical core, a heating core, a temperature sensor, a PCBA control board, a stainless steel tube, and a temperature control device. The inner frame includes a first end including a first hole and a second end including a second hole, the first hole being larger than the second hole. The heating core is disposed at a left side of the inner frame. The stainless steel tube surrounds the heating core, and the heating core is disposed in parallel to the stainless steel tube; the heating core is connected to the temperature control device and the temperature sensor. The temperature control device is connected to the temperature sensor and detects a heating temperature of the heating core in real time via the temperature sensor, whereby controlling the heating temperature to be constant.

A hypothermia treatment sack comprising a top sheet and a bottom sheet releasably connecting along their perimeters to form a patient receiving cavity between the top and bottom sheets while allowing for patient access from any location around the perimeter. The top and bottom sheets include a weatherproof exterior side for repelling wind and water, and a heat reflective interior side for preventing heat from escaping. A plurality of self-activating heating pads are carried in the top sheet for producing heat when exposed to air. The heating pads have a first side exposed on the weatherproof exterior side of the top sheet to provide for a generally unrestricted airflow to the heating pads, and a second side exposed on the heat reflective interior side of the top sheet for radiating heat directly into the patient receiving cavity.

The invention provides articles and methods for making such articles including a substrate coated on at least one region thereof with a layer of nanocomposites nano-cellulose materials and nanoparticles.

A technique for imparting direct resistance heating to a gauge length of a conductive metallic specimen under test and which can be used to add an independent dynamic thermal capability to a mechanical material test system. Specifically, a pair of, e.g., conductive collars, each of which encircles and abuts against a corresponding portion of the external surface of the specimen near an opposing end of its gauge length and inward of a corresponding grip. Each collar imparts additional self-resistive heat to the specimen along a circumferential collar / specimen interface. This additional heat appreciably reduces or cancels thermal gradients otherwise arising from self-resistive heating across the gauge length as well as compensates for thermal losses in each specimen end section. Through this arrangement, each specimen end section and the grips are not appreciably heated as the gauge length heats. The amount of additional heat is set by selecting a collar material to have a desired resistivity and also by appropriately dimensioning each collar.

A coffee machine, particularly an espresso machine, comprising a brewing device (6) for producing and dispensing coffee via a coffee dispensing nozzle (11), as well as a hot water boiler (2) having a fresh water supply line (1) and a hot water line (10) coming out into a brewing chamber (5) of the brewing device (6), and a control unit (4). The coffee dispensing is controllable by said control unit (4). A heating element (13) is disposed on the hot water line (10) between the hot water boiler (2) and the brewing chamber (5), by means of which heating element the water flowing from the hot water boiler (2) into the brewing chamber (5) is able to be brought to brewing temperature. The brewing temperature can thereby be maintained at a virtually constant value whereby improving the quality of the coffee dispensed.

A portable grill and cooker which can be transported on a vehicle's trailer hitch, on a separate trailer, or used as a free-standing stationary grill. This grill can also be used to bake, griddle fry, deep fry, boil, steam, smoke, and barbeque different foods. The grill can utilize propane, wood, or charcoal to provide a heat source for cooking. It includes a storage compartment as well as wheels / casters on adjustable-height legs to permit relocation easily, and a trailer hitch adapter which permits easy hookup and raising without the user having to physically lift the grill by hand.

A new adiabatic scanning calorimeter allows the thermal mass of a high-pressure reaction vessel to be dynamically compensated during a test. This allows the effective Φ factor for the experiment to be reduced to 1.0 without the use of complex pressure balancing equipment. Endothermic events can be quantified and sample specific heats can be measured. The time required for test completion is much shorter than for conventional adiabatic calorimeters, thus considerably improving apparatus productivity. The sensitivity to exotherm detection is at least as good as existing adiabatic calorimeters employing the Heat-Wait-Search strategy, but does depend on the temperature-scanning rate. In addition, the heat of reaction is obtained without reference to the heat capacity of the sample, pressure is measured continuously, reactants may be injected into the test vessel and the sample can be mixed during the test.

A light emitting diode lamp includes a heat sink, a socket, a light emitting module, a holder and a lens. The socket and the holder are respectively positioned opposite sides of the heat sink. The light emitting module is combined with the heat sink and has a light emitting diode unit. The lens is mounted on the light emitting diode unit and combined inside the holder. The heat sink includes a substrate and a plurality of heat dissipating fins. The substrate has a plurality of extending arms in a manner that a slot is formed between two neighboring extending arms. A plurality of heat dissipating fins is inserted into the corresponding slots. One of opposite sidewall surfaces of each extending arm is against one of opposite surfaces of each heat dissipating fin. Thereby, there is no need of producing a heat sink by soldering.

Floating insulating devices are provided for use in a bath tub. The devices float on the surface of the bath water while a person is bathing and reduce the heat loss from the bath water. This lengthens the duration during which the bath water is at a desirable temperature and makes the bath more satisfying for the bather.

An array of panels absorptive to solar radiation 21 is made up of individual panels 24, 25 etc. A duct runs along a panel 25 and terminates near the edge of the panel as a terminals 27. This terminal is positioned so that it shares a common axis with a second terminal on a second panel 24, whereby the terminals may be brought into close proximity and connected with a connector 26. This connection may be made by sliding one panel along the axis of its terminal towards a second panel.

A hypothermia treatment sack comprising a top sheet and a bottom sheet releasably connecting along their perimeters to form a patient receiving cavity between the top and bottom sheets while allowing for patient access from any location around the perimeter. The top and bottom sheets include a weatherproof exterior side for repelling wind and water, and a heat reflective interior side for preventing heat from escaping. A plurality of self-activating heating pads are carried in the top sheet for producing heat when exposed to air. The heating pads have a first side exposed on the weatherproof exterior side of the top sheet to provide for a generally unrestricted airflow to the heating pads, and a second side exposed on the heat reflective interior side of the top sheet for radiating heat directly into the patient receiving cavity.

The present invention is a method and system for dissociating methane hydrate deposits in-situ. An oxidizer fluid and a supply of fuel, both at a pressure higher than that of the methane hydrate deposit, are supplied and delivered to the methane hydrate deposit. The fuel is combusted downhole by reacting it with the oxidizer fluid to provide combustion products. The combustion products are placed in contact with a diluent fluid to produce a heated product fluid. The heated product fluid is injected into the methane hydrate deposit whereby methane is dissociated from the methane hydrate and made available for extraction. In addition, carbon dioxide may be made available to promote the formation of carbon dioxide hydrates from the liberated methane hydrate water.

The invention belongs to the field of chemical industry, and relates to a high-dispersion, high-load, high-activity low-temperature methane reforming nickel-based catalyst and its application. The invention provides a high-dispersion, high-load, high-activity low-temperature methane reforming nickel-based catalyst, which comprises the following components in terms of mass percentage: active component 20-25%; synergistic component 1-30%; carrier 45-79% . The present invention further provides a preparation method of a high-dispersion, high-load and high-activity low-temperature methane reforming nickel-based catalyst and its use in low-temperature methane reforming reactions. The invention provides a high-dispersion, high-load, high-activity low-temperature methane reforming nickel-based catalyst and its application, which is suitable for high-pressure and low-temperature methane-carbon dioxide reforming reaction at a reaction temperature of 400-800°C, high-pressure and low-temperature methane-steam reforming, high-pressure and low-temperature reforming Methane reforming processes such as methane-carbon dioxide-steam mixed reforming have high catalytic activity and stability.

The modular heated cover is disclosed with a first pliable outer layer and a second pliable outer layer, wherein the outer layers provide durable protection in an outdoor environment, an electrical heating element between the first and the second outer layers, the electrical heating element configured to convert electrical energy to heat energy, and a thermal insulation layer positioned above the active electrical heating element. Beneficially, such a device provides radiant heat, weather isolation, temperature insulation, and solar heat absorption efficiently and cost effectively. The modular heated cover quickly and efficiently removes ice, snow, and frost from surfaces, and penetrates soil and other material to thaw the material to a suitable depth. A plurality of modular heated covers can be connected on a single 120 Volt circuit protected by a 20 Amp breaker.

A valve-driving system which is applied to an internal combustion engine having a plurality of cylinders for driving an intake or exhaust valve provided in each cylinder, including a plurality of valve-driving apparatuses provided for driving valves of different cylinders of the internal combustion engine, wherein each valve-driving apparatus includes an electrical motor as a driving source for generating rotation motion; and a power transmission mechanism for converting the rotation motion of the electric motor into opening and closing motion of the valve to be driven and for transmitting the opening and closing motion to the valve through a cam or a link.