Roger E Hollis

Title: The Innovative Contributions of Roger E. Hollis

Introduction

Roger E. Hollis is a notable inventor based in Watertown, NY (US), recognized for his significant contributions to the field of electric motor technology. With a total of three patents to his name, Hollis has developed innovative solutions that enhance the functionality and safety of vacuum motors.

Latest Patents

Hollis's latest patents include the "Motor for Rotating Brush," which features an electric motor construction specifically designed for integration into rotating final drive members. This motor includes a hollow armature assembly that is rotatably supported around a permanent magnet stator. The armature assembly is crafted using printed circuit techniques, incorporating flat conductors on a flexible dielectric sheet that is rolled into a tube. Additionally, a soft magnetic tube surrounds the winding, providing structural support, heat dissipation, and a flux return path for the permanent magnet stator's poles. This innovative motor is ideally integrated into the cleaning brush of a vacuum sweeper unit.

Another significant patent is the "Double Insulated Vacuum Motor Assembly," designed for use in wet/dry utility cleaners. This assembly features strategic elements that are shielded or made from electrically insulating materials to prevent hazardous electrical currents between the fan chamber and the motor. It also prevents fluid migration into the motor. A unique fan mounting arrangement allows for the use of a conventional motor shaft and a metal fan while ensuring safety against electrification. The design includes mounting arrangements and an insulating shroud that effectively prevent the migration of pressurized fluids into the motor.

Career Highlights

Hollis is currently associated with The Scott & Fetzer Company, where he continues to innovate and contribute to advancements in motor technology. His work has significantly impacted the design and safety of vacuum motors, making them more efficient and reliable.

Collaborations

Throughout his career, Hollis has collaborated with notable colleagues, including John R. Dorner and Jon F. Wiltse. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.

Conclusion

Roger E. Hollis exemplifies the spirit of innovation through his patents and contributions to electric motor technology. His work not only enhances the functionality of vacuum motors but also prioritizes safety and efficiency. His legacy in the field continues to inspire future advancements in motor design.