Company Filing History:
28 out of 74 
14 out of 50 
7 out of 16 
Years Active: 1994-2018
Areas of Expertise:
Title: **Innovative Contributions of John G. Oldsen in Mining Technology**
Introduction
John G. Oldsen, based in Butler, PA, is a prolific inventor with a remarkable portfolio of 49 patents. His innovative work primarily focuses on enhancing safety and efficiency in mining operations. Oldsen's inventions have significantly contributed to the development of advanced support structures used in coal mines, demonstrating his commitment to improving industry standards.
Latest Patents
Among his latest inventions, two stand out for their ingenuity and practicality. The first is the "Fiberglass Roof and Rib Plate," designed as a bearing plate with a nut and bolt arrangement for rib or roof support specifically tailored for coal mines. This innovative solution is particularly beneficial where the extracted coal has a specific gravity in the range of 1.5 to 1.9, ideally 1.7. The bearing plate features an outer reinforced area with endless rib members, along with an inner reinforced area containing multiple legs that secure a bolthole at the center, ensuring stability and safety in mining environments.
Another significant invention is the "Yieldable Prop with Yieldable Insert." This mine prop consists of two pipes, one sliding within the other, designed with a yield member that responds to predetermined loads. When under pressure, the yield member gives way before the pipes, providing critical safety measures for miners by preventing unexpected failures during operation.
Career Highlights
John G. Oldsen has made substantial contributions to the mining industry through his tenure with well-known companies such as Jennmar Corporation and FCI Holdings Delaware, Inc. His expertise and innovative mindset have driven advancements in mining support technologies, ensuring safer working conditions.
Collaborations
Oldsen has collaborated with notable professionals in the field, including John C. Stankus and Frank Calandra, Jr. These partnerships have further enhanced his ability to innovate and improve mining technology, showcasing the importance of teamwork in achieving remarkable advancements.
Conclusion
John G. Oldsen's extensive patents and innovative solutions have undoubtedly left a lasting impact on the mining industry. His dedication to advancing mining technology continues to promote safety and efficiency, inspiring future generations of inventors and industry professionals. Through his work, Oldsen exemplifies the spirit of innovation that drives progress in engineering and technology.