Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1987-02-06
1988-05-10
Bartis, Anthony
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
98 403, 981212, 165 99, 219366, 219370, 219371, 219373, 415125, 416100, 417361, F24H 304, H05B 100, F04D 2510, F24F 1316
Patent
active
047437375
ABSTRACT:
An electric fan heater includes a stationary housing and a louver blade assembly having a plurality of oscillating louver blades located forwardly in the housing for providing multidirectional hot air flow from the heater. The heater also includes a drive system for the louver blade assembly with the drive system comprising lightweight plastic drive gears and a small rubber drive belt located rearwardly in the housing as well as a lightweight plastic connecting shaft extending forwardly from the drive gears to the louver blade assembly. The electric heating element for providing hot air from the heater is positioned between the louver blade assembly and the plastic drive gears. The gears and connecting shaft are located in the housing laterally outwardly from the heating element to avoid direct exposure to the heat therefrom. A common motor is used to operate both the heater and the fan blade which is positioned to move the hot air forwardly from the heating element out past the louver blades and away from the drive gears and to draw cooling air to the drive gears, connecting shaft and rubber drive belt which is further protected by a heat shield between the heating element and the drive belt.
REFERENCES:
patent: 697448 (1902-04-01), Coleman
patent: 2018535 (1935-10-01), Rober
patent: 2036597 (1936-04-01), Meyrowitz
patent: 2037250 (1936-04-01), MacDonald
patent: 2124716 (1938-07-01), Sperry
patent: 2768782 (1956-10-01), Tateishi
patent: 3147367 (1964-09-01), Magnusson
patent: 3173478 (1965-03-01), Maycen
patent: 3380372 (1968-04-01), Perry
patent: 4084491 (1978-04-01), Spotts et al.
patent: 4217816 (1980-08-01), Manginelli
patent: 4309595 (1982-01-01), Long et al.
patent: 4437394 (1984-03-01), Tateishi
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