Company Filing History:
3 out of 2,680 
2 out of 338 
1 out of 1,986 
Years Active: 1983-2001
Title: Innovations of Rodney E Barr
Introduction
Rodney E Barr is a notable inventor based in Cary, NC, with a significant contribution to the field of automotive technology. He holds five patents that showcase his innovative approach to engineering and design. His work primarily focuses on enhancing the functionality and efficiency of automotive systems.
Latest Patents
Among his latest inventions is the Electric Shift Control Assembly. This shift control assembly for a power transmission device incorporates an electric drive motor and a gear train that bi-directionally rotates a shift rail. The shift rail features a pair of spaced-apart cam followers, and a shift fork assembly that translates bi-directionally as the shift rail rotates. This design includes a circular plate with an array of apertures and sensors that generate unique signal combinations corresponding to specific angular positions of the shift rail.
Another significant patent is the Alcohol Concentration Sensor for Automotive Fuels. This electronic sensor measures methanol content in gasoline fuels for automotive engines. It utilizes a sensing coil and paired capacitance elements to create an oscillating circuit. Changes in methanol concentration affect the dielectric constant of the sensor, which in turn alters the resonant frequency. A microprocessor circuit responds to these changes, allowing for adjustments in the air/fuel ratio and ignition timing of the engine.
Career Highlights
Rodney has worked with prominent companies such as BorgWarner Inc. and BorgWarner Automotive GmbH. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in automotive technology.
Collaborations
Throughout his career, Rodney has collaborated with talented individuals, including Carl Randall Vogt and Richard K Rader. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Rodney E Barr's contributions to automotive innovation through his patents and collaborations highlight his expertise and commitment to advancing technology in the industry. His work continues to influence the design and functionality of automotive systems, making a lasting impact on the field.