Beds – With heating or cooling – And means to force air
Reexamination Certificate
2011-05-10
2011-05-10
Trettel, Michael (Department: 3673)
Beds
With heating or cooling
And means to force air
C005S714000, C005S421000, C005S941000
Reexamination Certificate
active
07937789
ABSTRACT:
A cushion heated convectively using a positive temperature coefficient of resistance type resistive heating includes a mattress pad, seat or the like with a bottom surface secured around its perimeter to an air permeable top surface, forming a plenum and containing tubular spacer material or other air flow structure therein. The plenum is connected to a power unit housing a blower, a heating module and a controller unit. The heating module includes a PTC type heating element. A remote control is provided, and a foldable antenna attachable to the convective unit facilitates wireless communication with the controller unit. The user resting atop the cushion controls the blower and heating module to deliver air of a desired temperature and quantity to the cushion and through the top surface.
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Kelleher William
Lauson Robert J.
Lauson & Tarver LLP
Trettel Michael
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