Company Filing History:
3 out of 3 
1 out of 9 
1 out of 832,966 Years Active: 1992-2001
Title: The Innovative Contributions of Joseph C. Runkle
Introduction
Joseph C. Runkle is an accomplished inventor based in Manchester-by-the-Sea, Massachusetts. With a total of five patents to his name, Runkle has made significant contributions to the field of engineering, particularly in railway technology and materials science.
Latest Patents
Runkle's latest inventions showcase his innovative spirit and technical expertise. One of his notable patents is the "Dual Alloy Railroad Wheel," which involves the creation of a railroad wheel formed from at least two metallic alloys. This design features a body formed from a first alloy and a rim made from a second alloy, initially in powder form. The process involves casting the wheel body with a circumferential channel, which is then enveloped with sheet metal to form a cavity. By heating the second alloy powder in the cavity under heat and pressure, Runkle successfully metallurgically welds the alloys, resulting in a composite railroad wheel that enhances performance and durability.
Another significant patent is the "Method of Producing a Silicon/Aluminum Sputtering Target." This method involves creating a target formed from a powder base of 80% to 95% silicon and 5% to 20% aluminum. The mixture is placed in a containment unit, heated under vacuum, and sealed. Runkle's technique applies significant pressure while heating the mixture, resulting in a target where a portion is formed from liquid phase silicon-aluminum, thus optimizing its properties for various applications.
Career Highlights
Throughout his career, Joseph C. Runkle has been associated with notable companies, including Ultraclad Corporation, where he likely contributed to advancements in materials and manufacturing processes. His dedication to innovation in engineering has solidified his reputation as a skilled inventor.
Collaborations
In his journey of innovation, Runkle has collaborated with distinguished professionals, including Timothy D. Howard. Such collaborations have allowed Runkle to enhance his inventions and push the boundaries of technology.
Conclusion
Joseph C. Runkle's inventive work exemplifies the spirit of innovation that drives progress in engineering and technology. With his contributions, particularly in the design of dual alloy materials and sputtering targets, he has established a legacy of excellence that continues to inspire future generations of inventors.