Electric heating – Heating devices – With heater-unit housing – casing – or support means
Reexamination Certificate
2005-06-21
2005-06-21
Novosad, Christopher J. (Department: 3671)
Electric heating
Heating devices
With heater-unit housing, casing, or support means
C219S535000, C219S548000
Reexamination Certificate
active
06909074
ABSTRACT:
A portable device for providing a heated surface to melt snow and ice therefrom includes a reservoir having a top surface provided with an opening, a plurality of apertures, and a mechanism for conveniently heating fluid disposed within the reservoir. The heating mechanism is operably connected to the reservoir, a plurality of mats removably attachable to each other along a substantially rectilinear path and a plurality of flexible conduits in fluid communication with the reservoir and the plurality of mats. The heating mechanism includes a plurality of programmable sensors for selectively activating the device when a temperature falls below a desired temperature threshold.
REFERENCES:
patent: 5854470 (1998-12-01), Silva
patent: D406000 (1999-02-01), Hartranft
patent: 5966502 (1999-10-01), Pearce
patent: 5998770 (1999-12-01), Sundby
patent: 6184496 (2001-02-01), Pearce
patent: 6197045 (2001-03-01), Carson
patent: 2001/0053927 (2001-12-01), Bradley
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