Inventor

CHANCE DAVEY J

18 patents

Patents

18 patents

US4320278AMar 16, 1982

Servo feed system for electrical discharge machining apparatus

COLT IND OPERATING CORP9 citations73

US4319114AMar 9, 1982

Current limit system for electrical discharge machining apparatus

COLT IND OPERATING CORP9 citations73

US4306135ADec 15, 1981

Power output module for electrical discharge machining power supply circuit

COLT IND OPERATING CORP7 citations73

US4303957ADec 1, 1981

Gap condition sensing circuit for electrical discharge machining power supply

COLT IND OPERATING CORP11 citations73

US4296302AOct 20, 1981

Adaptive control of gap voltage and power to control servo operation of an electrical discharge machining apparatus

COLT IND OPERATING CORP11 citations73

US4292490ASep 29, 1981

Electrical discharge machining power supply with digitally controlled on and off time and protective system

COLT IND OPERATING CORP16 citations73

US4267423AMay 12, 1981

Protection circuit for electrical discharge machining power supply

COLT IND OPERATING CORP16 citations73

US4258243AMar 24, 1981

Over current protection system for electrical discharge machining apparatus

COLT IND OPERATING CORP7 citations73

US4238660ADec 9, 1980

Multi-lead servo feed system for electrical discharge machining apparatus

COLT IND OPERATING CORP9 citations71

US4152569AMay 1, 1979

Servo feed circuit for electrical discharge machining apparatus

COLT IND OPERATING CORP15 citations71

US4471198ASep 11, 1984

Cut-off protection system for electrical discharge machining apparatus

COLT IND OPERATING CORP2 citations62

US4320279AMar 16, 1982

Programmable pulse generator for electrical discharge machining apparatus

COLT IND OPERATING CORP6 citations62

US4267422AMay 12, 1981

Power supply circuit of the high voltage type for electrical discharge machining apparatus

COLT IND OPERATING CORP2 citations62

US4254320AMar 3, 1981

Power output module for electrical discharge machining power supply circuit

COLT IND OPERATING CORP2 citations62

US4249059AFeb 3, 1981

Gap condition light indicator system for electrical discharge machining apparatus

COLT IND OPERATING CORP3 citations62

US4056702ANov 1, 1977

Electrical discharge machining power circuit

COLT IND OPERATING CORP3 citations62

US4151388AApr 24, 1979

Current control system for electrical discharge machining apparatus

COLT IND OPERATING CORP3 citations60

US4242560ADec 30, 1980

Servo feed system for an electrical discharge machining apparatus

COLT IND OPERATING CORP1 citations50