Robert J Lepofsky

Title: The Innovative Contributions of Robert J Lepofsky

Introduction

Robert J Lepofsky is a notable inventor based in Wellesley, MA, with a remarkable portfolio of 10 patents. His work primarily focuses on advancements in vacuum technology, showcasing his expertise and innovative spirit in the field.

Latest Patents

One of Lepofsky's latest patents is an electronically controlled vacuum pump. This vacuum system is designed as an integral assembly that includes a vacuum pump with a drive motor, a purge valve, a roughing valve, and an electronic control module. The system features both a cryogenic vacuum pump and a turbomolecular vacuum pump. The control module is equipped with a programmed processor that manages the motor and valves, allowing for user programmability to establish specific control sequences. Notably, the electronic control module is removable and connects to other devices through a common connector assembly. In the turbomolecular pump system, the proper introduction of a purge gas is monitored by detecting the current load on the pump drive or foreline pressure. The system is designed to test the purge gas status by closing and then opening the purge valve while monitoring drive current or pressure. After a power failure, the controller ensures the normal operation of the turbomolecular pump, provided the pump speed remains above a threshold value. If not, the vent valve opens, requiring a start-up sequence. During shutdown, power to the pump drive motor is cut off, and the vent valve is opened before closing the roughing valve.

Career Highlights

Throughout his career, Lepofsky has made significant contributions to the field of vacuum technology. He has worked with prominent companies such as Helix Technology Corporation and Brooks Automation GmbH, where he has applied his innovative ideas and technical skills to develop advanced vacuum systems.

Collaborations

Lepofsky has collaborated with notable professionals in his field, including Peter W Gaudet and Alan L Weeks. These collaborations have further enriched his work and contributed to the development of innovative technologies.

Conclusion

Robert J Lepofsky's contributions to vacuum technology through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative spirit continues to drive advancements in this essential field.