Company Filing History:
Years Active: 1977-1984
Title: The Innovative Contributions of Davey J Chance
Introduction
Davey J Chance is a notable inventor based in Concord, NC (US), recognized for his significant contributions to the field of electrical discharge machining. With a total of 18 patents to his name, Chance has developed innovative solutions that enhance machining processes and improve operational efficiency.
Latest Patents
Among his latest patents is the "Cut-off protection system for electrical discharge machining apparatus." This programmable system is designed to control machining current magnitude and reduce it in a step function as gap voltage falls, indicating a gap short circuit condition. The system computes and stores a set of off-time numbers in an off-time counter, which are recomputed each time a new on or off time is entered in the pulse generator. The original off-time serves as the normal cutting parameter, and as the gap voltage drops, the off-time increases until it reaches many times its normal duration.
Another significant patent is the "Servo feed system for electrical discharge machining apparatus." This servo circuit monitors gap conditions on up to four working leads simultaneously. It responds to high voltage operating conditions by reducing the sensed gap voltage to an appropriate level. An analog stage is employed to extract valuable information from the several gap leads, while an FET-type amplifier provides high input impedance to the circuit. Additionally, an absolute value circuit rectifies the gap signal back to a positive level, regardless of polarity.
Career Highlights
Davey J Chance is currently employed at Colt Industries Operating Corporation, where he continues to innovate and develop advanced machining technologies. His work has significantly impacted the efficiency and safety of electrical discharge machining processes.
Collaborations
Chance has collaborated with notable colleagues, including Oliver A Bell, Jr and Randall C Gilleland, contributing to a dynamic and innovative work environment.
Conclusion
Davey J Chance's contributions to electrical discharge machining through his patents and collaborative efforts highlight his role as a leading inventor in the field. His innovative solutions continue to shape the future of machining technology.