Location History:
- Midland, TX (US) (1991)
- Eden Prairie, MN (US) (1981 - 1996)
Company Filing History:
6 out of 625 
1 out of 832,680 Years Active: 1981-1996
Title: The Innovative Contributions of Robert L. Harrington
Introduction
Robert L. Harrington is a notable inventor based in Eden Prairie, MN (US), recognized for his significant contributions to the field of refrigeration and trailer technology. With a total of 7 patents to his name, Harrington has developed innovative methods that enhance the efficiency and functionality of refrigeration units and trailer jacks.
Latest Patents
Harrington's latest patents include a method for operating a refrigeration unit under predetermined high and low conditions. This method involves controlling refrigerant pressure during elevated ambient temperatures, utilizing a refrigerant compressor driven by a prime mover. The process includes detecting the actual load on the prime mover, sensing ambient temperature, and providing a dynamic load limit based on these factors. Additionally, he has developed a method to prevent excessive on-off cycling of refrigeration units during low ambient temperatures, ensuring optimal performance and energy efficiency.
Another notable invention is a conveniently attached hydraulic trailer jack. This hand-operated hydraulic jack is designed to assist in the attachment of trailers to towing vehicles. It can be rotated to a vertical position and actuated with a hand-operated pump to lift or lower the trailer tongue. Once the trailer is securely attached, the jack can be retracted, allowing for maximum ground clearance.
Career Highlights
Throughout his career, Robert L. Harrington has worked with several companies, including Thermo King Corporation, where he applied his innovative ideas to real-world applications. His work has significantly impacted the efficiency of refrigeration systems and the ease of trailer handling.
Collaborations
Harrington has collaborated with notable coworkers such as Alan D. Gustafson and Lowell B. Naley, contributing to a dynamic environment of innovation and creativity.
Conclusion
Robert L. Harrington's inventive spirit and practical solutions have made a lasting impact in his fields of expertise. His patents reflect a commitment to improving technology and enhancing user experience in refrigeration and trailer systems.
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.