Company Filing History:
3 out of 1,121 
2 out of 791 
1 out of 214 Years Active: 1995-2016
Title: Edward Douglas Hildreth, Jr: Innovator in HVAC Technology
Introduction
Edward Douglas Hildreth, Jr. is a notable inventor based in Clarksville, TN (US). He has made significant contributions to the field of heating, ventilation, and air conditioning (HVAC) technology. With a total of 6 patents to his name, Hildreth has developed innovative solutions that enhance the efficiency and functionality of refrigerant systems.
Latest Patents
Hildreth's latest patents include a Fixed and Variable Refrigerant Metering System. This refrigerant cooling system features multiple evaporator coils fed by one variable refrigerant metering device and one or more fixed refrigerant metering devices. The design aims to prevent condensed moisture on the coils from being entrained by the supply air, which could increase the humidity in a room or comfort zone. The variable refrigerant metering device delivers refrigerant to the evaporator's lowermost coil at a superheat that is less than that of the higher coils. Additionally, the system can operate at various loads by selectively energizing two or more compressors individually and in combination for different stages of capacity.
Another significant patent is the Actuator for a Fan-Powered Damper. This HVAC damper includes a series of pivotal damper blades that open due to an air pressure differential across opposite sides of the damper. In some embodiments, a fan discharging against the damper blades provides the necessary air pressure to open the damper. The actuator moves a variable position abutment that limits how far the damper blades can pivot in the open direction. This design allows for infinite adjustment over a range of open positions.
Career Highlights
Throughout his career, Hildreth has worked with prominent companies such as American Standard Inc. and Trane International Inc. His experience in these organizations has contributed to his expertise in HVAC technology and innovation.
Collaborations
Hildreth has collaborated with notable individuals in the industry, including Thomas E. Allen and William G. Hansen. These collaborations have likely influenced his work and contributed to the development of his patents.
Conclusion
Edward Douglas Hildreth, Jr. is a distinguished inventor whose work in HVAC technology has led to several innovative patents. His contributions continue to impact the efficiency and effectiveness of refrigerant systems in modern applications.