Philip John Stephens

Title: The Innovations of Philip John Stephens

Introduction

Philip John Stephens is a notable inventor based in Worthing, GB. He has made significant contributions to the field of vacuum technology, holding a total of 3 patents. His work focuses on improving the efficiency and functionality of vacuum systems, which are essential in various industrial applications.

Latest Patents

One of his latest patents is titled "Evacuating a Chamber." This invention presents a method and apparatus for reducing undesirable noise generated by a vacuum pumping system. The vacuum system operates to reduce the pressure in a chamber to a first pressure value. It detects when the pressure at the vacuum pump system's inlet is about to change to a second higher pressure. In response, the speed of a booster pump in the vacuum pump system is reduced below the rated speed for the pump. When the pressure at the vacuum pump's inlet exceeds the second pressure, the speed of the booster pump is increased back to the rated speed. This innovative approach allows the booster pump to slow down before the pump system is exposed to a rapid increase in inlet pressure.

Another significant patent is related to a pump design. This pump includes a plurality of pumping stages, each comprising a respective plurality of pumping mechanisms driven by one or more drive shafts. These mechanisms pump fluid through the stages from a pump inlet at a high vacuum stage to a pump outlet at a low vacuum stage. The design features a lubrication chamber housing a bearing assembly for supporting the drive shaft for rotational movement. The drive shaft extends from the high vacuum stage to the lubrication chamber through an opening in the head plate of the lubrication chamber. Additionally, it includes an inter-stage purge port and a lubrication chamber purge port, which control the pressure of purge gas in the lubrication chamber.

Career Highlights

Philip John Stephens is currently employed at Edwards Limited, a company renowned for its expertise in vacuum and abatement technologies. His work at Edwards has allowed him to develop and refine his innovative ideas, contributing to the company's reputation as a leader in the industry.

Collaborations

Throughout his career, Philip has collaborated with talented individuals such as Michael Geoffrey Thompson and Ian David Stones. These collaborations have fostered a creative environment that encourages the exchange of ideas and advancements in technology.

Conclusion

Philip John Stephens is a distinguished inventor whose work in vacuum technology has led to significant advancements in the field. His innovative patents