Richard A Bemis

Title: Innovations by Richard A. Bemis

Introduction

Richard A. Bemis is a notable inventor based in North Adams, MA (US). He has made significant contributions to the field of aluminum electrolytic capacitors, holding a total of four patents. His work has advanced the technology used in capacitors, which are essential components in various electronic devices.

Latest Patents

One of his latest patents is for the etching of aluminum electrolytic capacitor foil. This innovative process involves subjecting high-cubicity foil to a chemical etching stage using an acidic aqueous solution. The solution contains an acid with anodizing anions, hydrochloric acid, transition metal ions, and aluminum ions. The concentration of anodizing anions is preferably greater than that of chloride ions. Following this, the foil undergoes a second etching step, which can be either chemical or electrochemical. This method results in a high capacitance foil with enhanced bend strength. Another significant patent by Bemis is the AC etching of aluminum capacitor foil. In this process, aluminum capacitor foil is etched in a bath at temperatures ranging from 30 to 45 degrees Celsius. The bath contains hydrochloric acid, phosphoric acid, aluminum chloride, and alkali or alkaline earth metal chloride, while being subjected to alternating current at a frequency of 15 to 36 Hz.

Career Highlights

Richard A. Bemis has dedicated his career to advancing capacitor technology. His work at Sprague Electric Company has positioned him as a key figure in the development of innovative capacitor solutions. His patents reflect a deep understanding of materials and processes that enhance the performance of aluminum electrolytic capacitors.

Collaborations

Throughout his career, Bemis has collaborated with talented individuals such as Clinton E. Hutchins and Derek E. Rougeau. These collaborations have contributed to the successful development of his patented technologies.

Conclusion

Richard A. Bemis is a distinguished inventor whose work has significantly impacted the field of aluminum electrolytic capacitors. His innovative patents and contributions to Sprague Electric Company highlight his expertise and dedication to advancing technology in this area.