Charles J Leonhart

Title: The Innovative Contributions of Charles J. Leonhart

Introduction

Charles J. Leonhart is a notable inventor based in Schaumburg, IL (US). He has made significant contributions to the field of vacuum frame technology, holding a total of 10 patents. His work has advanced the capabilities of equipment used in image reproduction and other related applications.

Latest Patents

Among his latest patents is the "Latchable Vacuum Blanket Frame Assembly." This innovative apparatus features a latching system designed to assist in repressurizing the vacuumized area of the frame. It includes a vacuum blanket support frame that is pivotally mounted along one side of a glass panel, allowing for precise registration of workpieces against the glass panel during the copying process. The design incorporates a hollow rectangular frame with small vacuum ports that evacuate the space between the flexible vacuum blanket and the glass panel when a vacuum is applied. Additionally, large frontal ports facilitate clamping and holding the frame tightly against the glass panel during copy making. The latch members serve a dual purpose, latching the frame in a closed position for exposure and automatically operating the frontal ports to expedite the vacuum release at the end of a copy cycle.

Another significant patent is the "Vacuum Blanket Lifting Apparatus." This device maintains precise registration between an image-forming sheet and a light-sensitive sheet for controlled exposure to light. It features a light-transmitting glass panel and a vacuum blanket assembly that biases the sheets toward the glass panel while ensuring precise alignment. The apparatus includes a novel platen system that allows for the movement of the vacuum blanket and sheets toward the glass panel, ensuring equal sealing pressure along the entire length of the peripheral edge bead. This design enables rapid vacuum drawing between the sheets and the glass panel.

Career Highlights

Charles J. Leonhart has dedicated his career to advancing vacuum frame technology. His innovative designs have improved the efficiency and effectiveness of image reproduction processes. His work at Nuarc Company, Inc. has positioned him as a key figure in the development of these technologies.

Collaborations

Throughout his career, Leonhart has collaborated with notable colleagues, including William R. Walters and G. B. Meacham. These partnerships have contributed to the successful development and implementation of his innovative technologies.

Conclusion

Charles J. Leonhart's contributions to vacuum frame technology have significantly impacted the field of image reproduction. His innovative patents