D Paul Russell

Title: D Paul Russell: Innovator in Submersible Motor Technology

Introduction

D Paul Russell is a notable inventor based in Kingston, NH (US), recognized for his innovative contributions to submersible motor technology. With a focus on enhancing the efficiency and reliability of electric motor-driven pumps, Russell has made significant strides in this specialized field.

Latest Patents

Russell holds a patent for a submersible motor with shaft seals. This invention features a motor chamber and a pump chamber that are separated by a seal chamber. The design incorporates inboard and outboard shaft seals that are immersed in an oil buffer fluid, which helps to restrict the flow of liquid between the chambers. An integral or externally mounted pre-pressurized buffer fluid reservoir maintains positive fluid pressure in the seal chamber, preventing the ingress of pumped media through the outboard seal. The unique impeller design circulates fluid within the seal chamber, allowing for continuous run dry operation when paired with an integrally cooled motor design. Additionally, a cartridge shaft sleeve subassembly facilitates maintenance by incorporating a bearing configured between the inboard and outboard seals.

Career Highlights

Russell is associated with Lawrence Pumps Inc., where he applies his expertise in developing advanced pumping solutions. His work has contributed to the company's reputation for innovation in the field of submersible motors.

Collaborations

Throughout his career, Russell has collaborated with talented individuals such as Dale B Andrews and Michael C Witzgall. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

D Paul Russell's contributions to submersible motor technology exemplify his commitment to innovation and engineering excellence. His patent for a submersible motor with shaft seals showcases his ability to solve complex challenges in the industry.