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 heater having a housing including a bottom wall with a peripheral wall extending upwardly and outwardly away therefrom. A cavity is bounded and defined by the bottom and peripheral walls and a temperature control mechanism is disposed within the cavity. A footrest is engaged with the peripheral wall and closes off access to the cavity. The footrest is inclined at an angle relative to the bottom wall and slopes upwardly from a front region of the housing toward the back region thereof. The footrest includes a grid with a plurality of slats disposed thereon. The grid defines a plurality of apertures therein and the slats are spaced a distance apart from each other. When the temperature control mechanism is activated, air within the cavity is heated or cooled and is driven by a fan out of the aligned apertures and gaps. The slats are warmed or cooled by the driven air. The fan may be activated independently of the temperature control mechanism.

Abstract: A vehicular floor mat constructed of a plurality of hollow tubes, at least two spaced-apart through holes along a length of the hollow tubes for receiving at least two threaded rods, a plurality of tubular spacers positioned inbetween two adjacent hollow rods for maintaining a predetermined distance between the hollow tubes, and a nut engaging the ends of the threaded rods to hold the hollow tubes together forming a floor mat.

Abstract: A portable foot warming device for use with a vehicle. The device includes a rubberized, heat transferring and electrically insulating pad having a specified three dimensional shape with a specified length, width and thickness. An electrically conductive and resistant heat generating coil is embedded within the pad and extends therethrough in a desired configuration. A circuit unit is attached to the pad and supplies the heat generating coil. A cord extends from a voltage input to the circuit unit and in order to power the unit.

Abstract: A portable foot warming device for use with a vehicle. The device includes a rubberized, heat transferring and electrically insulating pad having a specified three dimensional shape with a specified length, width and thickness. An electrically conductive and resistant heat generating coil is embedded within the pad and extends therethrough in a desired configuration. A circuit unit is attached to the pad and supplies the heat generating coil. A cord extends from a voltage input to the circuit unit and in order to power the unit.

Abstract: A foot warmer having a water-proof, flexible rubberized layer to protect the user from electrical shock, for installation on a surface such as a running board of a snowmobile, snow removal, excavation or other motorized outdoor equipment. A foot warmer having a flexible heat element for providing heat when actuated, electrical leads from the motor for providing electrical actuation of the heat element, a rubberized layer on the heating element protecting the heating element from environmental conditions, an aluminum foil layer, positioned on the opposite side of the heat element reflecting heat produced by the heat element toward the first longitudinal side of the heating element, an insulating layer, positioned to abut the aluminum foil layer, for insulating the heat element from environmental conditions and an adhesive layer for attaching the assembled heating element to a surface.

Abstract: The invention concerns heaters, particularly for sports benches and more especially for the benches on which substitute players of the team sit during games. In the preferred form, a self-contained heater such as a combustion operated construction heater with blower produces the heat behind the bench, and the heat is conducted through a conduit into the space beneath the bench, and then through a T-conduit in either direction to points from which it is distributed. The space beneath the bench confines the heat on the front, back, sides and bottom. Heat is distributed through openings in the top of the bench toward the back, and also through openings in the front of the bench, which may be at the top of the front of the bench and at the bottom of the bench. In a less preferred embodiment, heaters may be in spaces continuous with the bench.