Donald E Friedman

Title: Inventor Spotlight: Donald E. Friedman from Creve Coeur, MO

Introduction

Donald E. Friedman is a notable inventor specializing in fluidic systems, particularly within the refrigeration industry. Based in Creve Coeur, Missouri, he has made significant contributions to the field with two patents that showcase his innovative spirit and technical expertise.

Latest Patents

Friedman's latest patents include the "Fluidic Time Delay System" and the "Suction Pressure Control System."

The **Fluidic Time Delay System** is designed to operate a series of pressure-sensitive control switches, enabling sequential operations at varying pressure settings. This innovative system effectively manages multiple parallel compressors and condenser fans, helping to maintain specific evaporator suction pressures and regulate condenser cooling in refrigeration systems. It features a fluid flow restrictor and unidirectional flow control mechanisms that operate in a bypass configuration, optimizing fluid pressure management.

The **Suction Pressure Control System** further enhances refrigeration efficiency by using multiple parallel compressors that operate cyclically. This system effectively maintains predetermined evaporator suction pressures by employing pressure-responsive switch means. The inclusion of restrictor means and unidirectional flow control allows for precise control of refrigerant fluid flow, optimizing system performance and responding dynamically to pressure fluctuations.

Career Highlights

Throughout his career, Donald E. Friedman has been associated with reputable companies such as Pet Incorporated and Hussmann Refrigerator Company. His experiences in these organizations helped him hone his skills in refrigeration technologies and fluidic systems, contributing to his successful patent developments.

Collaborations

Friedman's work often involved collaboration with teams at the companies he worked for, allowing him to innovate based on real-world industry needs. His contributions to Pet Incorporated and Hussmann Refrigerator Company underline his commitment to advancing refrigeration technology and improving energy efficiency in the industry.

Conclusion

Donald E. Friedman stands out as an influential inventor in the field of refrigeration systems. His innovative patents, such as the Fluidic Time Delay System and Suction Pressure Control System, showcase his dedication to creating efficient solutions in the industry. As the demand for improved refrigeration technologies continues to rise, inventors like Friedman play a crucial role in shaping the future of this essential field.