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For the Inventor, By the Inventor

Muncie, IN, United States of America

Donald W Kelbel

USPTO Granted Patents = 11

Average Co-Inventor Count = 1.2

ph-index = 8

Forward Citations = 183(Granted Patents)


Company Filing History:

goldMedal11 out of 2,680 
 
Borgwarner Inc.
 patents

Years Active: 1976-1981

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11 patents (USPTO):Explore Patents
1. 4269294 - Automatic clutch (1981-05-26),
2. 4228693 - Transmission shift control apparatus (1980-10-21),
3. 4193316 - Transmission shift control mechanism (1980-03-18),
4. 4185723 - Automatic four-wheel drive transfer case (1980-01-29),
5. 4154126 - Compact gear assembly (1979-05-15),
6. 4133219 - Transmission shift control mechanism (1979-01-09),
7. 4116082 - Compact manual transmission for a transversely mounted engine (1978-09-26),
8. 4063470 - Compact planetary gear assembly (1977-12-20),
9. 4047601 - Automatic four-wheel drive transfer case (1977-09-13),
10. 4012968 - Speed-sensitive differential mechanism (1977-03-22),
11. 3935752 - Transmission (1976-02-03),

Title: The Innovative Contributions of Donald W. Kelbel

Introduction

Donald W. Kelbel is a notable inventor based in Muncie, Indiana, recognized for his significant contributions to the field of mechanical engineering. With a total of 11 patents to his name, Kelbel has made advancements that enhance the functionality and efficiency of automotive systems. His work primarily focuses on clutch mechanisms and transmission control, showcasing his expertise in automotive technology.

Latest Patents

Among his latest patents, the "Automatic Clutch" stands out as a remarkable innovation. This clutch is designed to automatically engage a driving member with a driven member upon the application of torque, allowing for seamless transitions between drive and coast modes. It also maintains engagement during shifts between forward and reverse, and disengages automatically when torque is interrupted. Another significant patent is the "Transmission Shift Control Apparatus," which features a main shift rail that is rotatable for crossover selection and axially slidable for gear engagement. This apparatus includes an auxiliary shift rail and a reverse idler gear, ensuring precise control and preventing inadvertent gear engagement.

Career Highlights

Donald W. Kelbel has spent a considerable part of his career at BorgWarner Inc., a leading company in the automotive industry. His role at BorgWarner has allowed him to apply his innovative ideas and contribute to the development of advanced automotive technologies. His patents reflect his commitment to improving vehicle performance and safety.

Collaborations

Throughout his career, Kelbel has collaborated with talented individuals such as John W. Holdeman and Mark J. Fogelberg. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies in the automotive sector.

Conclusion

Donald W. Kelbel's contributions to automotive engineering through his patents and innovations have significantly impacted the industry. His work continues to inspire future advancements in vehicle technology.

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