This inventor holds 2 USPTO granted patents. Top assignees: Eskridge Engineering, Inc., Eskridge, Inc.. Active years: 1998-2002.
Company Filing History:
Years Active: 1998-2002
Title: The Innovative Contributions of Darrell Lee Durham
Introduction
Darrell Lee Durham is a notable inventor based in Lee's Summit, Missouri. He has made significant contributions to the field of engineering, particularly in the development of advanced mechanical systems. With a total of 2 patents, Durham's work showcases his expertise and innovative spirit.
Latest Patents
One of Durham's latest patents is the "Power-shiftable compound planetary transmission." This device and method allow for shifting the operating speed of a machine while under load. The machine includes a casing, an input and output shaft. The device features a clutch mechanism, a primary carrier, a cluster gear, a ring gear, and both a first and second gear. The clutch mechanism is operably associated with the input shaft, while the primary carrier is coupled to rotate the output shaft. The cluster gear is rotatably coupled to the primary carrier, and the first gear is mounted within the casing, with the second gear mounted on the first gear. The first and second gears mesh with the cluster gear, which rotates around them when one gear is engaged, thus rotating the output shaft at the corresponding operating speed.
Another significant patent by Durham is the "Retaining assembly for roller bearings." This invention involves a ring assembly designed to retain a roller bearing and shaft. A split ring fits into a groove in the shaft and is surrounded by a lock ring to secure it in place. The split ring features a beveled surface that the lock ring acts against, forcing the split ring into the groove as the lock ring is pressed onto it. An inclined surface on the split ring interacts with a ramp surface bounding the groove, applying a preload thrust to the bearing as it moves into the groove.
Career Highlights
Throughout his career, Darrell Lee Durham has worked with several companies, including Eskridge, Inc. and Eskridge Engineering, Inc. His experience in these organizations has contributed to his development as an inventor and engineer.
Collaborations
Durham has collaborated with notable coworkers such as Mark Anthony Johnson and David Wayne O'Reilly. Their teamwork has likely fostered an environment of innovation and creativity.
Conclusion
Darrell Lee Durham's contributions to engineering through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence the field and inspire future inventors.