Electric resistance heating devices – Heating devices – Convection space heater
Patent
1990-01-31
1991-09-10
Reynolds, Bruce A.
Electric resistance heating devices
Heating devices
Convection space heater
392347, 392353, 392370, 165 53, F24H 300
Patent
active
050477862
ABSTRACT:
Electric heating apparatus having at least one electrical heating resistor (24) arranged in a body (1) of sheet metal provided with an air inlet in its lower part and an air outlet in its upper part. The body (1) is formed by a double-walled hollow element in the form of a trough (2, 3) provided with end walls (14, 15) and at least one opening (12) for the entry of air and defining a first space (20) for the admission of air. The electrical resistor (24) is mounted on the concave part of the double-walled element in the form of a trough (2, 3) on the exterior of the latter. A perforated panel (30) is arranged on the concave wall and defines with the latter a second space (33) for the heating of the air by convection and for the direct radiation of the heat by the resistor through the perforations in the perforated panel. At least one opening (35, 36) is made in the hollow element (2, 3) in order to put the first and second spaces (20, 33) in communication, and at least one passage (31c) for the discharge of hot air is provided between the hollow element (2, 3) and a lateral edge of the perforated panel (30).
REFERENCES:
patent: 1688168 (1928-10-01), Whittaker
patent: 2552837 (1949-04-01), Blazer
patent: 3051816 (1959-04-01), Knoll et al.
patent: 3510940 (1970-05-01), Orr
Airelec Industries
Jeffery John A.
Reynolds Bruce A.
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