This inventor holds 3 USPTO granted patents. Top assignees: Corning Glass Works, Corhart Refractories Corporation. Active years: 1978-1987.
Company Filing History:
Years Active: 1978-1987
Title: Thomas A. Clishem: Innovator in Refractory Materials
Introduction
Thomas A. Clishem is a notable inventor based in Louisville, KY (US), recognized for his contributions to the field of refractory materials. He holds a total of 3 patents, showcasing his innovative approach to material science and engineering.
Latest Patents
One of Clishem's latest patents is titled "Method of making high density, fusion cast basic metallurgical." This patent discloses a novel method for creating a refractory material by utilizing an electrical arc metal furnace. The process involves charging the furnace with refractory oxide and adjusting voltage, amperage, and electrode spacings to achieve unique 'hum and scum' melt conditions. This technique is particularly effective for melting magnesia chrome materials, resulting in fusion cast refractory products that exhibit superior properties such as higher densities, lower porosities, and enhanced thermal shock resistance compared to traditional methods.
Another significant patent is the "Collapsible core and method of using same." This invention features a thermally collapsible core made of three to five solid carbonaceous segments arranged around a collapse axis. The design allows for the core to accommodate cooling shrinkage of casting without cracking, which is especially beneficial in tap hole blocks for steelmaking furnaces.
Career Highlights
Throughout his career, Thomas A. Clishem has worked with prominent companies such as Corning Glass Works and Corhart Refractories Corporation. His experience in these organizations has contributed to his expertise in the development of advanced refractory materials.
Collaborations
Clishem has collaborated with notable coworkers, including Leonard W. Pokallus and Melvin L. Neville, further enhancing his innovative work in the field.
Conclusion
Thomas A. Clishem's contributions to refractory materials through his patents and career experiences highlight his role as a significant innovator in the industry. His work continues to influence advancements in material science and engineering.