David H Kirkpatrick

Title: The Innovative Contributions of David H. Kirkpatrick

Introduction

David H. Kirkpatrick is a notable inventor based in Rochester, NY, with a significant impact on the field of optical film technology. He holds four patents that showcase his innovative spirit and technical expertise. His work has contributed to advancements in film printing and motion picture projection.

Latest Patents

One of Kirkpatrick's latest patents is for a high-speed, high-resolution continuous optical film printer designed for duplicating motion films. This invention allows for the copying of negative intermediate film onto print film. The design features a common transport shaft that moves both films past an illumination system, which includes a light source and an integrating cylinder. The imaging optical system produces a high-resolution, low-flare image strip on the print film, ensuring that it is parallel to the object strip. Additionally, the optical film printer provides angularly diffuse illumination to suppress scratches and matte effects.

Another significant patent is for a Geneva mechanism and motion picture projector utilizing this mechanism. This driving mechanism allows for the intermittent advancement of film in a motion picture projector with controlled acceleration. The Geneva mechanism consists of a star wheel and a rotating driver, where the drive pin cooperates with the slots in the star wheel to facilitate smooth rotation. This design optimizes the acceleration and deceleration of the star wheel, enhancing the overall performance of the projector.

Career Highlights

Kirkpatrick has had a distinguished career, working with prominent companies such as Eastman Kodak Company and The Gleason Works. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the film industry.

Collaborations

Throughout his career, Kirkpatrick has collaborated with notable individuals, including Jack C. DeMarti, Jr. and David D. Kessler. These partnerships have fostered innovation and have led to the development of advanced technologies in optical film printing and projection.

Conclusion

David H. Kirkpatrick's contributions to the field of optical film technology are significant and impactful. His patents reflect a deep understanding of the mechanics involved in film printing and projection, showcasing his innovative spirit. His work continues to influence the industry and inspire future inventors.