Keith N Krier

Title: Innovations of Keith N Krier

Introduction

Keith N Krier is a notable inventor based in Tonka Bay, Minnesota. He has made significant contributions to the field of electrically driven floor maintenance apparatus. With a total of six patents to his name, Krier's work showcases his dedication to improving efficiency and functionality in cleaning technology.

Latest Patents

One of Krier's latest patents is the "Multi-speed drive with forward/reverse lockout." This invention enhances electrically driven floor maintenance apparatus by allowing for variable speed control of the driving motors. The design includes two speed ranges, which can be switched between series for low speed and parallel for high speed. Additionally, it features intermediate speeds achieved through resistors placed in series with the motors. The invention also incorporates time delay circuitry to ensure safe acceleration and mechanisms to prevent driving in the opposite direction until the vehicle has slowed down. Another significant patent is the "Scrubber with hydraulic squeegee lift." This scrubbing device is equipped with a hydraulic pump that drives wheels and allows for the hydraulic raising and lowering of the squeegee. A sensing device monitors hydraulic fluid flow, enabling automatic adjustments based on the scrubber's movement direction.

Career Highlights

Krier is currently employed at Tennant Company, where he continues to innovate in the field of cleaning technology. His work has contributed to the development of advanced cleaning solutions that enhance operational efficiency and user safety.

Collaborations

Throughout his career, Krier has collaborated with notable colleagues, including Neil F Brown and Steven J Waldhauser. These partnerships have fostered a creative environment that encourages the development of innovative solutions.

Conclusion

Keith N Krier's contributions to the field of cleaning technology through his patents reflect his commitment to innovation and improvement. His work continues to influence the industry, making cleaning processes more efficient and effective.