Robert F Johnston

Title: The Innovations of Robert F Johnston

Introduction

Robert F Johnston is a notable inventor based in Wildwood, IL (US), recognized for his contributions to technology with a total of five patents. His work primarily focuses on advancements in calibration systems and web drive mechanisms, showcasing his innovative spirit and technical expertise.

Latest Patents

One of Johnston's latest patents is for an "Automatic Calibration for D.C. Transducers." This invention describes a method and system for automatically calibrating a D.C. transducer within a film retrieval system. The system amplifies the output of a transducer, such as a light sensor, and compares it to predetermined upper and lower limits. If the output exceeds these limits, the amplification is adjusted to maintain the output within the desired range.

Another significant patent is the "Reversible Ribbon Drive," which presents a web drive system designed to automatically reverse the direction of travel of a web when it reaches its end. This system utilizes a reversible electric motor to power either the supply or take-up spindles, allowing for efficient operation. The planetary gear system ensures that power is directed to the appropriate spindle based on the web's position, enhancing the functionality of the drive system.

Career Highlights

Throughout his career, Robert F Johnston has worked with various companies, including the Bell & Howell Company. His experience in these organizations has contributed to his development as an inventor and has allowed him to refine his innovative ideas.

Collaborations

Johnston has collaborated with notable individuals in his field, including Kenneth L Hendrickson and John R Flint. These partnerships have likely influenced his work and contributed to the success of his inventions.

Conclusion

Robert F Johnston's contributions to the field of technology through his patents demonstrate his innovative capabilities and commitment to advancing engineering solutions. His work continues to impact various industries, showcasing the importance of creativity and technical skill in invention.