Harry J Fitzgerald

Title: The Innovative Contributions of Harry J Fitzgerald

Introduction

Harry J Fitzgerald is a notable inventor based in Pittsburgh, PA, who has made significant contributions to the field of mining technology. With a total of two patents to his name, Fitzgerald has developed innovative methods and apparatuses that enhance the efficiency and safety of mining operations.

Latest Patents

Fitzgerald's latest patents include a "Mining method and apparatus," which discloses a method of single-entry mining of coal and analogous minerals. This method allows for nearly 100% extraction of the coal or other minerals in a seam. The operations are conducted under hydraulic steel roof supports adjacent to the mine face, while non-yielding cast-in-situ pillars of quick-setting concrete support the roof farther back. Additionally, he has patented an "Excavation roof support and method of installing the same." This invention involves a system for supporting overburden using a longitudinally slit prop casing made of light sheet material, such as cardboard or metal, which is filled with a hardenable slurry to form a supportive column.

Career Highlights

Throughout his career, Fitzgerald has worked with various companies, including Bochumer Eisenhutte Heintzmann & Company. His work has focused on improving mining techniques and ensuring the safety of mining operations.

Collaborations

Fitzgerald has collaborated with notable individuals in the industry, including Manfred Koppers and Karlheinz Bohnes. These collaborations have contributed to the development of his innovative mining solutions.

Conclusion

Harry J Fitzgerald's contributions to mining technology through his patents demonstrate his commitment to innovation and safety in the industry. His work continues to influence mining practices and improve extraction methods.