Phillip H Paul

Title: Phillip H. Paul: Inventor in Droplet-Based Printing

Introduction

Phillip H. Paul is an inventor based in San Francisco, California. His patent work addresses droplet-based printing and the controlled ejection of liquid feedstock from a gas-pressurized printhead.

Latest Patents

Paul is associated with 1 patent: “Systems and Methods for Improved Liquid Droplet Ejection from a Gas Pressurized Printhead via Arbitrary Pressure and Vacuum Pulsed Waveforms.” The invention describes a controller and printhead system with an internal cavity that holds liquid feedstock and a nozzle through which material is ejected. A valve system responds to controller signals by applying vacuum, venting the cavity to atmosphere, or pressurizing it. These operations create a tailored pressure waveform that can eject a droplet or a material jet that breaks into droplets.

Career Highlights

The patent highlights an approach to controlling liquid ejection by adjusting pressure waveforms to suit the feedstock material. This control can support the formation of droplets directly or through a jet that separates into droplets.

Collaborations

Paul’s coworker, Nicholas Noel Watkins, is associated with the work. The available information identifies Watkins as a collaborator but does not specify his role in developing the patented system.

Conclusion

Phillip H. Paul’s patent focuses on precise droplet generation through controlled pressure and vacuum pulses, contributing an inventive approach to liquid-based printing.