Heated floor mat for elevated surfaces and associated method

Details Heated floor mat for elevated surfaces and associated method Heated floor mat for elevated surfaces and associated method

2007-10-18

2011-12-13

Paik, Sang (Department: 3742)

Electric heating

Heating devices

With heater-unit housing, casing, or support means

C182S178100

Reexamination Certificate

active

08076619

ABSTRACT:
A heated stair mat includes a plurality of coextensively shaped mats configured in a staggered arrangement along a plurality of vertical and horizontal walls of the existing steps such that odd ones of the mats cover top surfaces of the existing steps while even ones of the mats cover front surfaces of the existing steps. Each of such mats is provided with a plurality of laterally spanning grooves juxtaposed between the heating elements and formed on top surfaces of the mats respectively. Such grooves have axially opposed open end portions for directing fluids and debris away from the top surface of the mats. The device further includes a plurality of heating elements, a mechanism for rotatably connecting the odd and even mats to each other, and a plurality of ring-shaped couplings.

REFERENCES:
patent: 2745942 (1956-05-01), Cohen
patent: 5062174 (1991-11-01), DaSalvo
patent: 5550350 (1996-08-01), Barnes
patent: 5854470 (1998-12-01), Silva
patent: 6180929 (2001-01-01), Pearce

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