Roger Chanal

Title: Roger Chanal: Innovator in Mining Safety Technology

Introduction

Roger Chanal is a notable inventor based in Saint Etienne, France. He has made significant contributions to the field of mining safety technology, holding two patents that enhance the functionality and safety of mining equipment. His work reflects a commitment to innovation and safety in the mining industry.

Latest Patents

Chanal's latest patents include a hydraulic slide control safety valve for a mine support jack. This safety valve is designed to relieve pressure in a mine support jack, featuring a washer and check valve positioned in a counterbore on the front surface of a resilient gasket member. A leg extends from the rear surface of the gasket, supporting the check valve in a position that seals the outlet port. The rear chamber is filled with pressurized gas, forming a gas cushion, while the end of the leg seals an inflation orifice. Another significant patent is the mining cylinder hydraulic slide valve, which is specifically designed for mining prop cylinders. This durable slide valve can be easily checked and adjusted, with an inlet pressure line separated from an outlet line by a diaphragm pressed against its seat by a spring. A thrust washer ensures that the diaphragm remains flat, even under pressure.

Career Highlights

Chanal's career is marked by his dedication to improving mining safety through innovative designs. His work at Bennes Marrel has allowed him to apply his inventive skills to practical applications in the mining industry.

Collaborations

Chanal collaborates with his coworker, Daniel Cotte, to further enhance the development of mining safety technologies.

Conclusion

Roger Chanal's contributions to mining safety through his innovative patents demonstrate his expertise and commitment to the industry. His work continues to influence the safety standards in mining operations.