Joseph P Coad

Title: Joseph P Coad: Innovator in Coating Technologies

Introduction

Joseph P Coad is a notable inventor based in Uffington, GB. He has made significant contributions to the field of coating technologies, holding a total of 3 patents. His work primarily focuses on advancements in sputter ion plating, which has applications in various industries.

Latest Patents

Coad's latest patents include a novel coating apparatus designed for sputter ion plating. This apparatus features a chamber with a gas inlet and outlet, allowing for continuous gas flow under low pressure. A cathode made of coating material is positioned within the chamber, along with mechanisms to generate a glow discharge. This setup enables the sputtering of cathode material to form a coating on a substrate. The cathode's design includes multiple projections that enhance ion current density, facilitating high currents at low voltages and pressures. This innovation allows for the coating of large substrates at increased rates.

Another significant patent by Coad involves improvements in the coating process itself. This method utilizes a DC glow discharge under soft vacuum conditions, where the substrate and cathode are present. The coating material is released from the cathode through ion bombardment, diffusing to the substrate to form a coating. To control the coating, particularly for alloys containing aluminum, an AC bias is applied to the substrate. This technique allows for ion polishing during the negative cycle and retention of coating material during the positive cycle.

Career Highlights

Joseph P Coad is affiliated with the United Kingdom Atomic Energy Authority, where he has contributed to various research and development projects. His expertise in coating technologies has positioned him as a key figure in advancing the capabilities of sputter ion plating.

Collaborations

Coad has worked alongside notable colleagues such as David S Rickerby and Samuel R Keown. Their collaborative efforts have furthered the development of innovative coating solutions.

Conclusion

Joseph P Coad's contributions to coating technologies through his patents and work at the United Kingdom Atomic Energy Authority highlight his role as an influential inventor in the field. His innovations continue to impact various industries, showcasing the importance of advancements in sputter ion plating.