Location History:
- Allegheny County, PA (US) (1987)
- Fairview, TN (US) (1993)
- Pittsburgh, PA (US) (1976 - 2003)
Company Filing History:
20 out of 2,301 
1 out of 25 
1 out of 832,843 Years Active: 1976-2003
Title: The Innovations of Donald M. Cunningham: A Leader in Heating and Cooling Technologies
Introduction: Donald M. Cunningham, based in Pittsburgh, PA, is an accomplished inventor with 21 patents to his name. His work primarily focuses on innovations in heating and cooling technologies, which have significantly impacted the industry. Through his inventive prowess, Cunningham has contributed to advancements that improve the efficiency and functionality of temperature control systems.
Latest Patents: Among Cunningham's latest patents is the "Integral Heating and Cooling Unit." This innovative unit provides precise temperature control of a working fluid, featuring a unique design that allows for independent or tandem heating and cooling. The integral system comprises a casing that defines a plenum and includes a heat exchanger pipe that passes through the plenum. Connected heating elements heat the working fluid, while the heat exchanger cools it through a cooling fluid that flows in heat transfer relation.
Another significant patent is the "Metal Sheath Heating Element and Method of Manufacturing Same." This patent details a metal sheath heating element designed for substantially dry applications. The cylindrical heater incorporates a coiled resistive heater wire contained within a stainless steel sheath. Granular insulating material is used to electrically isolate the heating element while facilitating thermal conduction. This design minimizes the risks of current leakage and oxidation, enhancing the durability and safety of the heating element.
Career Highlights: Throughout his dynamic career, Donald M. Cunningham has worked with reputable companies in the industry, including Emerson Electric Company and Chromalox, Inc. His contributions to these organizations have further advanced his expertise and understanding in the field of heating and cooling technologies.
Collaborations: Cunningham has collaborated with notable professionals, including Mark A. Bartels and T. Randall Markum. These partnerships have played a crucial role in the development and refinement of his patented technologies, fostering a creative environment that enhances innovation.
Conclusion: Donald M. Cunningham stands as a prominent figure in the realm of innovative heating and cooling solutions. His extensive patent portfolio and collaboration with distinguished colleagues underline his commitment to advancing technology in his field. With each invention, Cunningham continues to push the boundaries of what is possible, ensuring a legacy of innovation that will benefit the industry for years to come.