Location History:
- Phoenix, AZ (US) (1984)
- Scottsdale, AZ (US) (1986 - 1996)
- Delmar, NY (US) (1999)
- Virginia Beach, VA (US) (2000 - 2001)
- Roachdale, IN (US) (2008)
- Greencastle, IN (US) (2002 - 2010)
Company Filing History:
5 out of 10 
3 out of 3 
2 out of 33 Years Active: 1984-2010
Title: The Innovative Contributions of Earl D. Smith
Introduction
Earl D. Smith is a notable inventor based in Scottsdale, AZ, with a remarkable portfolio of 18 patents. His work primarily focuses on developing advanced suspension systems for low-floor vehicles, which enhance accessibility and functionality in transportation.
Latest Patents
Among his latest patents, Earl D. Smith has designed a low profile chassis and suspension system specifically for road vehicles. This innovative chassis supports various payload sections, such as those found in delivery trucks, ambulances, or shuttle buses. The design features a largely planar frame with a top surface positioned beneath the rotational axes of the rear wheels. The compact wheel suspension system is designed to be close to the road surface, ensuring stability and efficiency. In some embodiments, each wheel is suspended by a pair of pivotal support arms, with one arm positioned above the other. A spring mechanism is incorporated to maintain the separation of one arm from the frame, enhancing the overall performance of the suspension system.
Another significant patent involves a trailing arm-type wheel support that supports a stub axle in a cantilevered manner. This design also includes a spring that urges the wheel support away from the frame, with critical components located beneath the rotational axis of the wheel. Additionally, the frame may feature a recessed pocket to facilitate wheelchair access, demonstrating Smith's commitment to inclusivity in vehicle design.
Career Highlights
Earl D. Smith has made significant contributions to the field of vehicle design through his innovative patents. His work has been instrumental in improving the functionality and accessibility of transportation systems, particularly for low-floor vehicles.
Collaborations
Throughout his career, Earl has collaborated with notable individuals such as Josef P. deFazekas and Herbert E. Cooper, further enhancing the impact of his inventions.
Conclusion
Earl D. Smith's innovative contributions to vehicle suspension systems have paved the way for more accessible and efficient transportation solutions. His dedication to improving vehicle design continues to influence the industry positively.