David Shirley

Title: David Shirley - Innovator in Rotary Drill Bit Technology

Introduction

David Shirley is a notable inventor based in Cheltenham, GB. He has made significant contributions to the field of drilling technology, particularly through his innovative designs for rotary drill bits. With a total of two patents to his name, Shirley's work exemplifies the intersection of engineering and practical application in the drilling industry.

Latest Patents

Shirley's latest patents focus on advancements in rotary drill bits. The first patent describes a method of manufacturing rotary drill bits using a powder metallurgy process. This method involves creating a hollow mold for shaping the bit body, packing it with powdered matrix material, and infiltrating it with a metal alloy in a furnace. The design includes formers made from austenitic stainless steel, which are positioned to form sockets for cutting elements. The second patent outlines a rotary drill bit designed for drilling or coring deep holes. This bit features a shank for connection to a drill string, multiple cutting elements, and a passage for supplying drilling fluid. The innovative design includes resiliently compressible retaining means to securely hold the cutting elements in place.

Career Highlights

David Shirley is currently associated with Nl Petroleum Products Limited, where he continues to develop and refine drilling technologies. His expertise in the field has positioned him as a key player in advancing drilling efficiency and effectiveness.

Collaborations

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Conclusion

David Shirley's contributions to rotary drill bit technology reflect his commitment to innovation and engineering excellence. His patents not only enhance drilling capabilities but also demonstrate the importance of research and development in the industry.