Location History:
- Hogansville, GA (US) (1991)
- Hartland, MI (US) (1991 - 1993)
Company Filing History:
4 out of 136 
1 out of 68 
1 out of 832,761 Years Active: 1991-1993
Title: The Innovative Contributions of James W. Powell
Introduction
James W. Powell is a notable inventor based in Hartland, MI (US), recognized for his significant contributions to environmental control systems. With a total of six patents to his name, Powell has demonstrated a commitment to advancing technology in this field.
Latest Patents
Among his latest innovations, Powell has developed two distinct environmental control systems. The first system features a refrigeration loop that includes a two-stage centrifugal compressor, a condenser, and an evaporator. This design incorporates a motor for rotating the compressor and control means that respond to evaporator load, establishing the compressor's rotation rate. Additionally, it includes a controllable expansion valve and a bypass valve, allowing for variable communication of refrigerant to optimize performance.
The second environmental control system also utilizes a refrigeration loop but is equipped with a variable speed compressor. This system includes a condenser, evaporator, and a variable speed evaporator fan. It features temperature setpoint apparatus and various sensors to monitor air temperature, allowing for precise control of both the evaporator fan and compressor speeds based on desired conditions.
Career Highlights
Throughout his career, James W. Powell has worked with reputable companies such as Nartron Corporation and Williams International. His experience in these organizations has contributed to his expertise in developing innovative environmental control technologies.
Collaborations
Powell has collaborated with notable coworkers, including Mark G. Voss and John F. Hurley, who have likely contributed to his innovative projects and patent developments.
Conclusion
James W. Powell's work in environmental control systems showcases his inventive spirit and dedication to improving technology. His patents reflect a deep understanding of refrigeration systems and their applications, making him a significant figure in the field of innovation.