Company Filing History:
1 out of 18 
1 out of 832,891 Years Active: 2003-2012
Title: Christopher J McCallum: Innovator in Rail Car and Tarp Systems
Introduction
Christopher J McCallum is an accomplished inventor based in Yankton, SD (US). He holds 2 patents that showcase his innovative contributions to rail car extension systems and tarp mechanisms. His work reflects a commitment to enhancing functionality and efficiency in transportation and cargo management.
Latest Patents
One of McCallum's notable inventions is the Rail Car Extension System. This system includes a first main rail section, a second main rail section, and a plurality of bow structures. The design allows for effective mounting and extension, improving the usability of rail cars. Another significant patent is the Roll Assist Mechanism for Tarp Systems. This mechanism enhances the operation of tarps used to cover open containers, such as trucks, by utilizing constant force springs to assist in the movement of the roll bar. This innovation simplifies the process of covering and uncovering containers, making it more efficient.
Career Highlights
Throughout his career, McCallum has worked with various companies, including Shur Company. His experience in the industry has allowed him to develop practical solutions that address real-world challenges in transportation and cargo handling.
Collaborations
McCallum has collaborated with notable individuals such as Bradford P Swanson and Derrick K Barr. These partnerships have contributed to the development and refinement of his innovative ideas.
Conclusion
Christopher J McCallum is a significant figure in the field of innovation, particularly in rail car and tarp systems. His patents reflect a dedication to improving transportation efficiency and functionality.