Charles Free is an accomplished inventor based in Hernando, MS (US). He holds a total of seven patents, showcasing his expertise in developing innovative solutions for various applications. His work primarily focuses on advancements in pipe lining technology.

Latest Patents

Among his latest patents is a high-strength, stretchable liner designed for pipes. This liner tube is engineered to line a pipe effectively, utilizing a unique method that incorporates a strength layer and a felt backing layer. The strength layer consists of chopped strands of fiber that are oriented parallel to one another, ensuring durability. The felt backing layer is needle-punched to the strength layer, enhancing the overall integrity of the liner. The joining structure connects the opposite longitudinal edge margins of the liner material, forming a tube shape. This innovative liner is impregnated with a curable polymer, which is positioned in the pipe and cured to create a robust lining. Notably, the liner stretches radially when placed in the pipe, maintaining the strength layer's attachment to the felt backing while ensuring the overlapping edge margins remain intact.

Another significant patent involves a pipe liner and the method of making and installing it. This eversion liner features an impermeable outer portion and inner and outer strength portions, with a middle section that includes at least one felt layer positioned radially between the strength portions. The inner and outer strength portions are crafted from a unitary sheet of strength material, which includes parallel chopped strands of fiber. The design ensures that the longitudinal edge margins of the strength material overlap and are securely joined, preventing any reduction in width during the eversion process.

Career Highlights

Charles Free's career is marked by his dedication to innovation in the field of pipe lining technology. He is currently associated with Ina Acquisition Corporation, where he continues to develop and refine his inventions. His contributions have significantly impacted the industry, providing effective solutions for pipe maintenance and repair.

Collaborations

Throughout his career, Charles has collaborated with notable colleagues, including Yevgeny Eugene Zaltsman and Abu Abraham. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Charles Free is a prominent inventor whose work in pipe lining technology has led to several innovative patents. His contributions continue to shape the industry, demonstrating the importance of creativity and collaboration in engineering advancements.

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