Location History:
- Geneva, CH (1981 - 1982)
- Onex, CH (1983)
Company Filing History:
Years Active: 1981-1983
Title: The Innovative Contributions of Charles Frei
Introduction
Charles Frei is a notable inventor based in Geneva, Switzerland. He has made significant contributions to the field of electrical discharge machining. With a total of 3 patents, his work focuses on improving the efficiency and effectiveness of machining processes.
Latest Patents
Frei's latest patents include a process and apparatus for controlling the concentration of solid particles in machining fluids. This innovative method involves supplying machining fluid through a nozzle to the machining zone, where it is then returned to a tank and circulated by a pump. The system features a solid particle proportioning device that regulates the concentration of solid particles based on the average delay of triggering electrical discharges. Another patent addresses the monitoring of electrically conductive solid particles in suspension, utilizing a pair of electrodes to measure the concentration as an inverse function of the delay time required for triggering electrical discharges.
Career Highlights
Charles Frei is associated with Ateliers Des Charmilles S.A., a company known for its advancements in machining technology. His work has contributed to the development of more precise and controlled machining processes, enhancing the capabilities of electrical discharge machining.
Collaborations
Frei collaborates with Jean Pfau, a fellow innovator in the field. Their partnership has fostered advancements in the technology and applications of machining processes.
Conclusion
Charles Frei's innovative patents and contributions to electrical discharge machining highlight his role as a significant inventor in the industry. His work continues to influence the field and improve machining technologies.