Location History:
- Centerville, OH (US) (1978 - 1987)
- Dayton, OH (US) (1988 - 2000)
Company Filing History:
14 out of 30,943 
1 out of 17 Years Active: 1978-2000
Title: The Innovative Mind of Donald E. Graham
Introduction
Donald E. Graham, an inventive spirit based in Centerville, OH, has made significant contributions to the field of engineering through his innovative designs and solutions. With a total of 15 patents to his name, Graham's work stands at the intersection of functionality and practicality, aimed at enhancing operational efficiency and comfort in various applications.
Latest Patents
Among his latest patents is the "Locomotive Cab Heating System," which features a sophisticated configuration of heating units controlled by a microcontroller. This system incorporates a high-temperature shutdown thermostat and utilizes a program stored in the microcontroller's memory to manage heating units based on real-time temperature readings. The invention ensures that the air temperature within the locomotive cab remains optimal for comfort, irrespective of fan speed and air flow rate. This innovative solution is designed for easy and cost-effective retrofitting into existing heating systems.
Another notable invention is the "Load-Based Control of an AC Motor," which introduces an AC motor control mechanism based on iterative load computations. This method allows for accurate determination of motor load from the start of operation and continues adjusting parameters according to changes in load throughout the motor's running phase. The innovative approach not only enhances motor efficiency but also ensures optimal performance based on real-time load conditions.
Career Highlights
Donald E. Graham has held prominent positions in several organizations, including GM Global Technology Operations LLC and Dayton-Phoenix Group, Inc. His roles in these companies have allowed him to apply his expertise in developing innovative technological solutions, further establishing his reputation as a skilled inventor and engineer.
Collaborations
Throughout his career, Graham has collaborated with notable colleagues, including Jeff Allan Foust and Harry C. Buchanan, Jr. These partnerships have encouraged knowledge sharing and innovation, solidifying Graham's influence in the engineering community.
Conclusion
Donald E. Graham's dedication to innovation and practical engineering solutions has led to the development of impactful patents that enhance both comfort and efficiency. As an accomplished inventor based in Centerville, OH, his contributions to locomotive technology and motor control mechanisms reflect his commitment to improving operational standards. As he continues to innovate, the engineering field eagerly anticipates his future contributions.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.