Electric heating – Heating devices – Combined with diverse-type art device
Patent
1981-03-12
1982-02-23
Reynolds, B. A.
Electric heating
Heating devices
Combined with diverse-type art device
346151, 307118, 219501, 219497, 219388, 361 6, 323237, H05B 102
Patent
active
043170188
ABSTRACT:
In a control circuit to prevent the overheating of a conductively backed recording medium, a closed loop control circuit is provided wherein heat is provided to the heating electrodes of the circuit by one subcircuit under the control of a speed responsive control subcircuit. A feedback loop to a summing junction in the latter subcircuits is monitored to determine a deviation from virtual zero at that junction. A deviation from such virtual zero at that junction is used to control a shutdown safety circuit.
REFERENCES:
patent: 3584291 (1971-06-01), Budniak
patent: 3588445 (1971-06-01), Hopkins
patent: 4267434 (1981-05-01), Simpson
Denny Richard W.
Diddens Paul A.
Burton Lockwood D.
Halista Mitchell J.
Honeywell Inc.
Paschall M. H.
Reynolds B. A.
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