Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1989-09-08
1992-04-14
Paschall, Mark H.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219483, 219486, 219211, 219508, 2 69, A05B 102
Patent
active
051050676
ABSTRACT:
A microcomputer-based, closed-loop electronic temperature control system and method for an electrically heated cold weather garment having a plurality of independently heated zones. In one preferred embodiment the system comprises a potentiometer for selecting the desired temperature at which a plurality of areas of the garment are to be maintained, a thermistor for determining a reference temperature of the interior areas of the garment, and a plurality of conductive heating wires operable to heat each area of the garment independently. The system further includes a plurality of solid-state semiconductor power devices for controllably allowing current flow through each heating wire and, a plurality of current sensing circuits for sensing the current flow through each heating wire. The microcomputer receives information from the potentiometer, the thermistor and the current sensing circuits, and determines therefrom the level of heating required for each zone. The microcomputer then generates and applies a plurality of pulse width modulated output signals to the solid-state switches to thereby control the amount of heat produced by each heating wire, thus controlling the temperature of each zone.
REFERENCES:
patent: 3363087 (1968-01-01), Buxbaum et al.
patent: 3783240 (1974-01-01), Drummond, Jr.
patent: 3789190 (1974-01-01), Orosy et al.
patent: 4042803 (1977-08-01), Bickford
patent: 4087675 (1978-05-01), Sansonetti
patent: 4113391 (1978-09-01), Minowa
patent: 4132262 (1979-01-01), Wibell
patent: 4251718 (1981-02-01), Cole
patent: 4274145 (1981-06-01), Hendricks et al.
patent: 4277670 (1981-07-01), Mori et al.
patent: 4359626 (1982-11-01), Potter
patent: 4404460 (1983-09-01), Kerr
patent: 4485296 (1984-11-01), Ueda et al.
patent: 4523084 (1985-06-01), Tamura et al.
patent: 4549074 (1985-10-01), Matsuo
patent: 4657572 (1987-04-01), Desai et al.
patent: 4723068 (1988-02-01), Kasuda
patent: 4798936 (1989-01-01), Johnson, Sr.
patent: 4858576 (1989-08-01), Jeffries et al.
patent: 4920252 (1990-04-01), Yoshino
Aghai-Tabriz Kamyab
Batcheller Barry D.
Brekkestran Kevin L.
Nguyen Nghia N.
Environwear, Inc.
Paschall Mark H.
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