John P Dunn

Title: Innovations by John P Dunn: Contributions to Particle Separation Technology

Introduction: John P Dunn, an accomplished inventor based in Hammondsport, NY, has made significant strides in the field of particle separation technology through his innovative designs. With a total of 11 patents to his name, Dunn's work has advanced the efficiency and effectiveness of gas cyclone systems and electrostatic separation techniques.

Latest Patents: Among Dunn's latest patents are the Field Effect Auxiliary Gas Cyclone (FEAGC) and methods for its application. This innovation enhances the collection of particles from a gas stream and separates dissimilar particles by providing an inductive field that can attract or repel particles. The FEAGC utilizes an auxiliary gas system to support independent internal controls for variables such as particle velocity and concentration. It features three adjustable operating variables: an auxiliary high-pressure air input orifice to increase product velocity while reducing the solids-to-gas ratio, an electric field that influences charged particles, and an auxiliary air venturi for controlling delta pressure and temperature within the vortex. This sophisticated system effectively separates particles averaging less than 5 microns in diameter.

Additionally, Dunn's electrostatic sieving apparatus presents a novel design featuring a circular solid electrode with sawtooth contours. This design enhances the oscillatory movement of particles, facilitating the separation of finer materials from coarser ones. The particles are subjected to an electric field that propels them outward, ensuring that finer particles are sifted through while coarser particles are guided to a collection area.

Career Highlights: Throughout his career, John P Dunn has held prominent positions at several innovative companies, including North American Philips Corporation and Advanced Electrostatic Technologies, Inc. His experience in these organizations underscores his dedication to advancing technology and improving separation systems.

Collaborations: Dunn has collaborated with notable peers in his field, such as Kent L Collins and Kathleen P Bernard. These partnerships have contributed to the development of his inventions, exemplifying the importance of collaboration in technological advancements.

Conclusion: John P Dunn's contributions to particle separation technology reflect a deep understanding of physics and engineering principles. Through his patents and innovations, he has played a crucial role in advancing the industry, paving the way for more efficient and effective systems in gas cyclone technology and electrostatic separation. His work continues to inspire future inventors and engineers in the field.