Electricity: electrical systems and devices – Miscellaneous
Patent
1990-09-11
1992-12-22
Tolin, Gerald P.
Electricity: electrical systems and devices
Miscellaneous
335202, 361 94, 439366, 439720, H05K 118
Patent
active
051738430
ABSTRACT:
A fan control board and circuit having a central low voltage wiring center as well as a safety interlock for electric heater in which the interlock uses diodes to ensure proper fan operation in the event of miswiring of the heater sequencers. Another feature of the invention is a quick connect for a time delay of the circuit which permits easy insertion and removal thereof for replacement and/or cleaning.
REFERENCES:
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patent: 3171002 (1965-02-01), Kinnear
patent: 4400674 (1983-08-01), Suda
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patent: 4938715 (1990-07-01), Jones
patent: 5007844 (1991-04-01), Mason
Hayden Kenneth L.
Rowlette Mitchell R.
Steffes Gary J.
Baumann Russell E.
Donaldson Richard L.
Grossman Rene E.
Texas Instruments Incorporated
Tolin Gerald P.
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