Electrical resistors – With base extending along resistance element – Resistance element coated on base
Patent
1990-12-31
1993-03-09
Lateef, Marvin M.
Electrical resistors
With base extending along resistance element
Resistance element coated on base
338195, 338295, 338 7, 338322, 338325, 338327, 338330, 338333, 337405, H01C 1012
Patent
active
051929406
ABSTRACT:
A flat resistance for a blower control unit of an automobile air conditioner, and a blower control unit using the same. The flat resistance includes: a porcelain enameled metallic substrate including a flat head portion, having an edge and one surface, and parallel terminal supporting portions projecting outwardly from the edge of the head; a resistance circuit printed on the one surface of the head portion, the resistance circuit including a plurality of resistances electrically connected in series; a temperature fuse, interposed in the resistance circuit, for being tripped to break the resistance circuit when the porcelain enameled metallic substrate becomes overheated; and terminals, printed on both the head portion and the terminal supporting portions, each terminal being connected to one end of a corresponding one of the resistances.
REFERENCES:
patent: 3978443 (1976-08-01), Dennis et al.
patent: 4201970 (1980-05-01), Onyshkevych
patent: 4501956 (1985-02-01), Bergersen et al.
patent: 4533896 (1985-08-01), Belopolsky
29th Electronic Components Conference, Cherry Hill, May 14-16, 1979, IEEE, New York pp. 121-125; Stein et al.: "Thick Film Materials on Porcelain Enameled Steel Substrates" pp. 122-123.
Hirabayashi Hisanaga
Itoh Masanori
Okuyama Hitoshi
Suzuki Takao
Uruga Ken-ichi
Calsonic Corp.
Fujikura Ltd.
Kohwa Mfg. Co.
Lateef Marvin M.
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