Company Filing History:
Years Active: 1977-1982
Title: Innovations by Charles W. Lewis in Safety Glass Technology
Introduction
Charles W. Lewis is a notable inventor based in Pittsburgh, PA, recognized for his contributions to the field of safety glass technology. With a total of 5 patents, Lewis has made significant advancements that enhance the safety and durability of laminated glass products.
Latest Patents
One of his latest patents involves the fabrication of laminated safety glass without the use of an autoclave. This innovative process allows for the lamination of large glass sheets using a plasticized interlayer material. The method involves applying excess liquid plasticizer to the surfaces of the interlayer material, which softens the surfaces for better adhesion to glass sheets. The assembly is then subjected to controlled temperature and pressure conditions to effectively remove excess plasticizer, ensuring a strong bond between the glass sheets.
Another significant patent by Lewis focuses on a laminated windshield with an improved inner layer. This safety glass is created by laminating a ply of glass with a saturated polyvinyl acetal film that incorporates a photoinitiator. The film is then exposed to ultraviolet light, activating the photoinitiator and initiating crosslinking of the polymer. This process enhances the mechanical and optical properties of the film while improving its solvent-abrasion resistance.
Career Highlights
Charles W. Lewis has made a remarkable impact in the field of safety glass through his innovative patents. His work at PPG Industries, Inc. has positioned him as a leader in developing advanced glass technologies that prioritize safety and performance.
Collaborations
Throughout his career, Lewis has collaborated with talented individuals such as Joseph P. Cherenko and Earl E. Parker. These partnerships have contributed to the successful development of his patented technologies.
Conclusion
Charles W. Lewis continues to be a driving force in the innovation of safety glass technology. His patents reflect a commitment to enhancing the safety and functionality of glass products, making significant contributions to the industry.