Blanket assembly and selectively adjustable apparatus for providing heated or cooled air thereto
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United States of America Patent
Stats
-
Oct 18, 1988
Grant Date -
N/A
app pub date -
Apr 23, 1987
filing date -
Apr 23, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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