Thermostatically controlled pre-weld heater

Details Thermostatically controlled pre-weld heater Thermostatically controlled pre-weld heater

1978-01-19

1979-08-21

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With current connection and/or disconnection means

219510, 219530, 219535, H05B 102

Patent

active

041654579

ABSTRACT:
A thermostatically controlled pre-weld heater is described in which a temperature sensor is mounted, intermediate the legs of a pre-weld heater, in a position to sense accurately, and then thereby to control, the temperature of the workpiece so as to accurately control the temperature of the area to be welded by opening and closing the circuit to the electrical current supplied to the heater coil in the legs of the pre-weld heater.

REFERENCES:
patent: 2575150 (1951-11-01), Wellman
patent: 2668898 (1954-02-01), Husaczka et al.
patent: 3032861 (1962-05-01), Foster
patent: 3045098 (1962-07-01), Norton
patent: 3134008 (1964-05-01), Finn
patent: 3187161 (1965-06-01), Finn
patent: 3207887 (1965-09-01), Drugmand et al.
patent: 3305668 (1967-02-01), Smith
patent: 3384195 (1968-05-01), Jepson et al.
patent: 3404256 (1968-10-01), Finn
patent: 3730262 (1973-05-01), Drugmond

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