Solder reflow heater bar assembly

Details Solder reflow heater bar assembly Solder reflow heater bar assembly

1985-05-07

1987-03-31

Ramsey, Kenneth J.

Electric heating

Heating devices

Tool or instrument

219241, 219494, 219 85D, B23K 304

Patent

active

046545077

ABSTRACT:
Heater bar assembly for a reflow solder machine comprises first and second fingers (50, 52) carrying U-shaped heater bar (54) which is pivotable on main member 22. A spring urges the heater bar assembly to the centered position. First and second thermocouples (82, 84) are secured to the heater bar (54) and are connected through a transfer switch (104) by which their electrical connections can be alternated. One controls the power supply and the other cuts off the power supply if temperature exceeds the selected temperature.

REFERENCES:
patent: 3991297 (1976-11-01), Ammann
patent: 3995135 (1976-11-01), Osipov et al.
patent: 4192992 (1980-03-01), Stevens et al.
patent: 4237369 (1980-12-01), Jones
patent: 4320285 (1982-03-01), Koether

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