초록 ▼

A blanket assembly has an outer layer constructed of a relatively close weave fabric preventing air flow therethrough. Underneath the top layer is a second layer of material edge connected to the top layer and which is constructed of a material permeable to air, such as relatively thin taffeta, for

A blanket assembly has an outer layer constructed of a relatively close weave fabric preventing air flow therethrough. Underneath the top layer is a second layer of material edge connected to the top layer and which is constructed of a material permeable to air, such as relatively thin taffeta, for example. A cavity exists between the two layers which receives pressurized cooled or heated air that passes through the air permeable layer to cool or heat the individual using the blanket assembly. A modified blanket assembly construction includes rigid edge wall members holding the outer and inner layers separated at a predetermined spacing reducing “pinch-off”between the layers restricting air flow within parts of the cavity or chamber. Peltier effect elements are selectively energizable to heat or cool air provided to the blanket assembly cavity.

대표청구항 ▼

Apparatus externally located to a blanket for providing pressurized, temperature modified air to an air impermeable outer layer separated from an air permeable inner layer, comprising: a first heat exchanger with a heat exchanging surface; a first air impeller mounted to pass ambient air through the

Apparatus externally located to a blanket for providing pressurized, temperature modified air to an air impermeable outer layer separated from an air permeable inner layer, comprising: a first heat exchanger with a heat exchanging surface; a first air impeller mounted to pass ambient air through the first heat exchanger; a second heat exchanger with a heat exchanging surface; a second air impeller mounted to pass ambient air through the second heat exchanger; a plurality of Peltier effect semiconductor elements arranged to contact the heat exchanging surfaces of said first and second heat exchangers; and selectively actuatable D.C. power source means for applying D.C. power to said Peltier effect semiconductor elements of a first polarity to raise the temperature of the second heat exchangers and of a second polarity to lower the temperature of the second heat exchanger.