David A Hultman

Title: **David A. Hultman: Innovator in Rock Strength Evaluation**

Introduction

David A. Hultman, an accomplished inventor based in Cambridge, Minnesota, has made significant strides in the field of rock strength evaluation. He holds a unique patent that reflects his innovative approach to geological assessments.

Latest Patents

Hultman's patent, titled "Portable Rock Strength Evaluation Device," introduces a revolutionary portable frame designed to enhance the assessment of rock samples. This device supports a cutting tool that engages with the rock, ensuring a constant depth cut at a consistent velocity. During this process, the device measures forces acting parallel and perpendicular to the direction of displacement. These measurements enable the determination of key parameters such as cohesion and the internal friction angle, which are critical in characterizing rock strength, providing a true measure of its integrity.

Career Highlights

David Hultman is affiliated with the University of Minnesota, where he applies his expertise to advance research and development in geological engineering. His work primarily focuses on improving techniques for evaluating the strength of rock materials, making significant contributions to both academia and industry.

Collaborations

Hultman's research efforts are often bolstered through collaborations with notable colleagues such as Emmanuel Detournay and Andrew Drescher. Their collective expertise fosters innovation and supports the development of cutting-edge solutions in rock mechanics and engineering.

Conclusion

Through his patent and collaborative efforts, David A. Hultman exemplifies the spirit of innovation in the field of rock strength evaluation. His contributions not only advance scientific knowledge but also enhance practical applications in geology and engineering disciplines.