Electric heating – Metal heating – Cutting or disintegrating
Patent
1991-04-30
1992-09-15
Evans, Geoffrey S.
Electric heating
Metal heating
Cutting or disintegrating
219 6918, 363124, B23H 102
Patent
active
051479958
ABSTRACT:
A discharging circuit, whereby a triangular discharging current waveform is generated; the ascending section of the triangular discharging current waveform is to be determined by a voltage and an inductance of the circuit, while the variation rate of a descending section of the waveform is to be controlled by an inductance, a peak current and a resistance in the circuit so as to generate a negative and descending current variation rate.
REFERENCES:
patent: 3974357 (1976-08-01), Saito et al.
patent: 4681997 (1987-07-01), Inoue et al.
patent: 4940872 (1990-07-01), Futamura
Chung Ya-Chien
Yang Huann-Jen
Evans Geoffrey S.
Industrial Technology Research Institute
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