Clothes dryer apparatus and method

Details Clothes dryer apparatus and method Clothes dryer apparatus and method

2006-02-28

2006-02-28

Paschall, Mark (Department: 3742)

Electric heating

Heating devices

With power supply and voltage or current regulation or...

C219S494000, C219S501000, C219S490000, C034S535000

Reexamination Certificate

active

07005618

ABSTRACT:
An electric clothes dryer heater system including a heater element and a controller operationally coupled to the heater is provided. The controller is configured to provide an AC sine wave to a heater element of an electric clothes dryer, stop providing at a zero crossing of the AC sine wave, monitor the AC sine wave for a subsequent zero crossing and reprovide the AC sine wave to the heater element at the subsequent zero crossing.

REFERENCES:
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patent: 4209915 (1980-07-01), Keuleman et al.
patent: 4226026 (1980-10-01), Deming et al.
patent: 4282422 (1981-08-01), Payne et al.
patent: 4520259 (1985-05-01), Schoenberger
patent: 4649654 (1987-03-01), Hikino et al.
patent: 2002/0096511 (2002-07-01), Tsumanuma et al.
patent: 402118319 (1990-05-01), None

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