William E Feathers

Title: William E. Feathers and His Liquid-Separation Apparatus

Introduction

William E. Feathers is an inventor associated with Cochranville, Pennsylvania, and E. I. du Pont de Nemours and Company. His patent work addresses equipment for mixing and separating liquids in multistage processes.

Latest Patents

Feathers is credited with 1 patent, titled “Apparatus for Mixing Liquids Used in Countercurrent Multiphase Liquid Separation.” The invention describes a reusable apparatus for multistage countercurrent liquid separation, including applications that progressively separate target microorganisms from background organisms and materials.

The apparatus uses at least one chamber with a sealing, piston-like sliding bottom whose movement can be controlled and limited by stops. Internal mixing is preferably provided by a magnetic stainless-steel ball that can be reciprocated from outside the chamber. The design aims to support precise transfer, homogeneous mixing, air exclusion, and isolation from the ambient atmosphere, while operating without valves and at low cost. The patent also describes multiple ways to actuate the apparatus.

Career Highlights

Feathers’s documented patent contribution focuses on practical equipment for controlled liquid handling and separation. The design combines a movable chamber bottom with an internal mixing mechanism to support staged processing.

Collaborations

Feathers’s listed coworkers include Alexander D. Kopatsis and Brian A. Deane. His company affiliation is E. I. du Pont de Nemours and Company.

Conclusion

William E. Feathers’s patent presents a reusable, valve-free apparatus designed to improve mixing and control in multistage countercurrent liquid separation.