Electric welding apparatus for automatically welding heating coi

Details Electric welding apparatus for automatically welding heating coi Electric welding apparatus for automatically welding heating coi

1989-03-10

1992-07-14

Paschall, Mark H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219535, 219492, 219505, 1562742, 1562739, 285286, H05B 102

Patent

active

051305186

ABSTRACT:
In an electric welding apparatus for automatically welding heating coil fittings substantially of plastic material a scanner (3) for scanning fitting data is connected via a converter to a first input of a controller (8) which via a power station (13) controls, for a welding period, the welding power output. In order to reach an optimal welding factor of the welding the scanner (3) and the converter (4) are provided for scanning naominal welding energy data of said fitting (1). At least a second input (at 12) of the controller (8) is connected to circuits (calculator 11) which generate signals of the actual welding energy from welding power output data as well as from the actual welding period.

REFERENCES:
patent: 4571488 (1986-02-01), Reeves
patent: 4631107 (1986-12-01), Ramsey
patent: 4684789 (1987-08-01), Eggleston
patent: 4705937 (1987-11-01), Marek
patent: 4795877 (1989-01-01), Bridgstock et al.
patent: 4837424 (1989-06-01), Nussbaum et al.

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