A personal extremity warming apparatus having a band, a pocket attached to the band, and an opening adapted to receive a heating element, the pocket having a front panel and rear panel the front panel adapted to attach to said rear panel along all but one of a plurality of front and rear panel sides. In an embodiment of the invention, the personal extremity warming apparatus has a band, a rear panel fixedly attached to the band along a first long side, a first short side, and a second short side, and the rear panel further having a second long side of the rear panel forming an opening adapted for receiving a heating element.

There is described an apparatus for heating or cooling a material to be heated or to be cooled. The apparatus includes: a first compartment for containing the material to be heated or to be cooled; and a second compartment containing a phase change material, wherein the phase change material is either for generating heat to heat the first compartment or absorbing heat to cool the first compartment when undergoing a phase change. There are further described various different activating arrangements for activating a change of phase of the phase change material.

An object of the present invention is to provide a water absorbent resin powder for a heat-generating element composition, which suppresses the generation of the aggregates derived from the water absorbent resin and the adhesion of the water absorbent resin in the production of a heat-generating element composition. A present inventive water absorbent resin powder for a heat-generating element composition includes polyacrylic acid (salt)-based water absorbent resin powder which have a bulk specific gravity (specified by JIS K3362) of 0.630 g/cm.sup.3 or less, fluid retention capacity without load (CRC) for a 0.9% by weight aqueous solution of sodium chloride (specified by ERT441.01-2) of 32.0 g/g or less, a weight-average particle diameter (specified by sieve classification) of 250 ?m or more, and an amount of a residual glycidyl-based crosslinking agent of 10 ppm or less.

An object of the present invention is to provide a water absorbent resin powder for a heat-generating element composition, which suppresses the generation of the aggregates derived from the water absorbent resin and the adhesion of the water absorbent resin in the production of a heat-generating element composition. A present inventive water absorbent resin powder for a heat-generating element composition includes polyacrylic acid (salt)-based water absorbent resin powder which have a bulk specific gravity (specified by JIS K3362) of 0.630 g/cm.sup.3 or less, fluid retention capacity without load (CRC) for a 0.9% by weight aqueous solution of sodium chloride (specified by ERT441.01-2) of 32.0 g/g or less, a weight-average particle diameter (specified by sieve classification) of 250 ?m or more, and an amount of a residual glycidyl-based crosslinking agent of 10 ppm or less.

Provided is a thermotherapy device, which includes a first housing (10), a second housing (20) disposed under the first housing (10), a transfer plate (30), at both sides of which transfer rollers (31) are provided, and a pair of guide rails (40) that is provided to the second housing (20) and on which the respective transfer rollers (31) of the transfer plate (30) are placed. The pair of guide rails (40) are integrally molded when the second housing (20) is injection-molded. Thus, since the guide rails on which the transfer rollers of the transfer plate travel are integrally molded when the second housing is injection-molded, inefficiency caused by mounting separate rails as in the related art is removed, and thereby assemblability, productivity, and economic efficiency of the thermotherapy device can be improved.

It is an object of the present invention to provide a chemical body warmer that achieves a sufficient heating effect even in a low-temperature environment at about 10? C. or less. A chemical body warmer including a flat housing including one or a plurality of cells each containing an exothermic composition that generates heat upon contact with air, wherein a total area of the cell or the plurality of cells in a plan view of the housing is 200 cm.sup.2 or more, and the chemical body warmer is used by being placed under a blanket.

An intestinal activity regulation device includes a regulator that performs a regulation process of regulating intestinal activity of a target person based on the state of the intestinal activity detected by a detector that detects the state of the intestinal activity of the target person.

A thermal management system and a method of heating a water-surface load or sub-water load. The system includes an electrochemical power source which generates electrical power and heat as a byproduct or coproduct. The electrolyte contained in the electrochemical power source is configured to transport the heat that is generated by the electrochemical power source to at least one water-surface load or sub-water load.

A thermal management system and a method of heating a water-surface load or sub-water load. The system includes an electrochemical power source which generates electrical power and heat as a byproduct or coproduct. The electrolyte contained in the electrochemical power source is configured to transport the heat that is generated by the electrochemical power source to at least one water-surface load or sub-water load.

A self-contained heated wax treatment apparatus can include an outer shell and a rack disposed inside the outer shell. The rack can include a receptacle holder and at least one heater holder. A receptacle can be connected to the rack. A heater can be connected to the heater holder of the rack. Activation of the heater causes heat to flow to the receptacle.