Company Filing History:
Years Active: 1983
Title: Innovations of John R Duncan in Arc Welding
Introduction
John R Duncan is a notable inventor based in Tarzana, NY (US), recognized for his contributions to the field of welding technology. He holds a patent for a unique method of pulsed direct current arc welding, which has significant applications in various industries.
Latest Patents
Duncan's patent, titled "Pulsed Direct Current Arc Welding," introduces a method that utilizes special pulses of positive direct current to effectively weld work pieces together. This innovative approach is particularly advantageous for fluxless arc welding of aluminum, especially in the production of thin wall aluminum tubing used in heat exchangers for air conditioning systems. The method is designed to dissipate difficult-to-reduce oxides present on the surfaces of the work pieces without the need for flux.
Career Highlights
John R Duncan is associated with Carrier Corporation, a leading company in the HVAC industry. His work at Carrier has allowed him to apply his innovative welding techniques to enhance product quality and efficiency.
Collaborations
Duncan has collaborated with notable colleagues, including Roderick G Rohrberg and Ross A Moyer, who have contributed to his projects and innovations in welding technology.
Conclusion
John R Duncan's advancements in pulsed direct current arc welding represent a significant step forward in welding technology, particularly for aluminum applications. His work continues to influence the industry and improve manufacturing processes.