Location History:
- St. Clair Shores, MI (US) (1979)
- Crabtree, MI (US) (1984)
Company Filing History:
Years Active: 1979-1984
Title: Innovations by James D. Crabtree
Introduction
James D. Crabtree is a notable inventor based in St. Clair Shores, Michigan. He has made significant contributions to the field of vehicle technology, particularly in the design of suspension systems and hatches for armored vehicles. With a total of three patents to his name, Crabtree's work reflects a commitment to enhancing vehicle functionality and safety.
Latest Patents
One of Crabtree's latest patents is a suspension system for wheeled vehicles. This innovative system is particularly adapted for extended travel suspension systems in armored wheeled vehicles. It features a design where each front and rear wheel assembly is mounted on a trailing arm suspension. The front suspension includes an axle housing supported by a bell crank assembly, which allows for effective shock absorption through a combination of coil springs and rubber bumpers. Another significant patent is for a hatch designed for armored vehicles. This hatch includes an integral viewing block that moves with the hatch as it opens and closes. The design allows for guided movement on a sloping surface, ensuring that the hatch can be opened and closed smoothly while providing visibility from the hatch opening.
Career Highlights
Crabtree's career has been marked by his work at Cadillac Gage Company, where he has applied his inventive skills to develop advanced vehicle technologies. His patents demonstrate a deep understanding of mechanical engineering and a focus on practical applications that enhance the performance of armored vehicles.
Collaborations
Throughout his career, Crabtree has collaborated with notable coworkers such as Theodore A. Jackson and Irving Appelblatt. These partnerships have likely contributed to the innovative designs and successful patent applications that Crabtree has achieved.
Conclusion
James D. Crabtree's contributions to vehicle technology through his patents reflect his expertise and innovative spirit. His work continues to influence the design and functionality of armored vehicles, showcasing the importance of engineering in enhancing safety and performance.