Roger Noël

Title: Innovations by Roger Noël in Rock Drilling Technology

Introduction

Roger Noël is a notable inventor based in Bron, France. He has made significant contributions to the field of rock drilling technology, holding a total of 2 patents. His innovative approaches have enhanced the efficiency and effectiveness of rock drilling operations.

Latest Patents

One of Roger Noël's latest patents is an arrangement for controlling rock drilling. This invention involves a method for controlling rock drilling and a rock drilling arrangement that includes at least one feed channel of a feed actuator equipped with a restrictor. This restrictor causes a pressure drop when the penetration rate increases, leading to an increase in flow through the restrictor. The system is designed to detect pressure differences and increases in penetration rate by sensing the pressure before and after the restrictor. Additionally, when the feed rate increases, a hydraulic system is arranged to decrease percussion pressure.

Another significant patent by Noël is related to a monitoring valve, rock drilling apparatus, and a method for controlling at least two hydraulic actuators connected to such a monitoring valve and rock drilling apparatus. This invention describes a method for controlling at least two hydraulic actuators, where the monitoring valve is connected to the input channel of a first actuator through a sensing channel. It controls a load-sense circuit of a second actuator, with the pressure of the load-sense circuit set by a spring element and biased by a control element of the monitoring valve using differential pressure sensing.

Career Highlights

Roger Noël has had a distinguished career, working with prominent companies in the mining and construction sectors. He has been associated with Sandvik Tamrock Oy and Sandvik Mining and Construction Oy, where he has applied his expertise in rock drilling technology.

Collaborations

Due to space constraints, the collaborations section will be omitted.

Conclusion

Roger Noël's contributions to rock drilling technology through his innovative patents demonstrate his expertise and commitment to advancing the field. His work continues to influence the industry positively.