Patrick F Dunn

Title: The Innovative Contributions of Patrick F Dunn

Introduction

Patrick F Dunn is a notable inventor based in Downers Grove, IL (US). He has made significant contributions to the field of aerosol sampling and measurement technologies. With a total of 2 patents, his work has advanced the understanding and characterization of aerosols in various applications.

Latest Patents

One of his latest patents is titled "Apparatus for sampling and characterizing aerosols." This invention involves a chamber designed to sample aerosols across a wide particle size range at relatively low velocities. The chamber features multiple vertically stacked particle collection stages, each equipped with a separator plate and a channel guide that creates a labyrinthine flow path. This innovative design allows for efficient aerosol collection and characterization.

Another significant patent by Patrick F Dunn is "Apparatus for measuring the local void fraction in a flowing liquid." This invention utilizes an impedance-variation probe placed in the liquid to measure the local void fraction containing gas. By applying a controlled voltage or current to the probe and measuring the resulting current or voltage, the apparatus provides a clean signal for accurate void fraction measurement. The integration of the signal over time also allows for the visualization of bubble size and distribution on an oscilloscope display.

Career Highlights

Patrick F Dunn has dedicated his career to advancing technologies that enhance aerosol measurement and characterization. His work has been recognized for its practical applications in various industries, contributing to improved processes and safety measures.

Collaborations

Throughout his career, Patrick has collaborated with esteemed colleagues such as Joseph E Herceg and Robert H Klocksieben. These partnerships have fostered innovation and have led to the development of groundbreaking technologies in their respective fields.

Conclusion

In summary, Patrick F Dunn is a distinguished inventor whose contributions to aerosol sampling and measurement technologies have made a lasting impact. His innovative patents reflect his commitment to advancing scientific understanding and practical applications in this important area.