Electric heating – Metal heating – Of cylinders
Patent
1978-02-13
1980-04-08
Reynolds, Bruce A.
Electric heating
Metal heating
Of cylinders
307310, H05B 906
Patent
active
041974425
ABSTRACT:
A temperature supervising system comprising a temperature sensor which is designed to sense the temperature of the supervised component and to supply a signal representing the temperature, which signal is compared with a reference signal to produce an alarm or to interrupt the connection of the component to a supply source when the difference between the signal indicating the temperature and the reference signal exceeds a given value, for example zero. The reference signal is generated by a function generator which supplies a signal varying with time, which signal, in a period immediately after the instant the component is connected to its current source, increases according to any desired function, for example stepwise or linearly, from a low initial value to a higher output value.
REFERENCES:
patent: 3662140 (1972-05-01), Jones et al.
patent: 3670134 (1972-06-01), Bucksbaum
patent: 3820068 (1974-06-01), McMillin
patent: 4109129 (1978-08-01), Satoh et al.
Carlsson Kurt H.
Lindstrom Bengt T. L.
Briody Thomas A.
Franzblau Bernard
George Keith E.
Reynolds Bruce A.
Streeter William J.
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