Metal working – Method of mechanical manufacture – Electrical device making
Patent
1980-03-07
1982-06-15
Husar, Francis S.
Metal working
Method of mechanical manufacture
Electrical device making
29619, H05B 300
Patent
active
043343503
ABSTRACT:
A method for the heating of a fluid stream flowing in the pores of a body of specially prepared porous reticulated vitreous carbon which does not crack or substantially change in electrical resistance with time when heated to elevated temperature in air is described. The body is composed of electrically conductive rigid, interconnected and multidirectional continuous strands of vitreous carbon forming a rigid porous, three dimensional skeletal structure. The body as an electrical resistance element has current conductive paths between at least two regions; is shaped to provide particular cross-sections along the conductive paths; and has electrical connector means attached at the regions of the body so that current can be distributed through the body. The electrical resistance element is particularly useful as a heating element for air flowing through the pores in electrically powered room space heaters, hair dryers, hand dryers and the like and can also function as a self-cooling resistor. In a like manner, electromagnetic energy is used to heat a body of the porous vitreous carbon so as to heat a fluid stream flowing through the pores.
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Franklin Charles H.
Rice Warren A.
Torbett Christopher J.
Vinton Clarence S.
Arbes Carl J.
Chemotronics International, Inc. Shareholders
Husar Francis S.
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