Jeffrey U Shaffer

Title: The Innovative Contributions of Jeffrey U. Shaffer

Introduction

Jeffrey U. Shaffer is a notable inventor based in Minneapolis, MN. He has made significant contributions to the field of engineering, particularly in the development of advanced pump systems. With a total of 2 patents to his name, Shaffer's work has had a meaningful impact on the industry.

Latest Patents

One of Shaffer's latest patents is a "Pump changeover algorithm for spray system." This innovative method involves actuating a double-action pump assembly with a reciprocating plunger. The process includes signaling the reciprocating plunger to stop for a changeover period. While the pump is stopping, the first inlet and outlet valves are closed. During this time, the second inlet and outlet valves are opened, ensuring that they begin to mechanically open at least a dwell period after the first valves have entirely closed. Finally, the reciprocating plunger is signaled to begin moving while the second inlet and outlet valves are closing.

Career Highlights

Jeffrey U. Shaffer is currently employed at Graco Minnesota Inc., where he continues to innovate and develop new technologies. His work at Graco has allowed him to apply his expertise in pump systems and contribute to the company's reputation for quality and innovation.

Collaborations

Throughout his career, Shaffer has collaborated with talented individuals such as David L. Fehr and John Russell Ingebrand. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Jeffrey U. Shaffer's contributions to the field of engineering, particularly in pump systems, highlight his innovative spirit and dedication to advancing technology. His patents and collaborations reflect a commitment to excellence in his work.