Carl Eugene Kroger

Title: **Carl Eugene Kroger: Innovator in Amorphous Metal Technology**

Introduction

Carl Eugene Kroger, a prolific inventor based in Aynor, SC, has made significant strides in the field of amorphous metal technology. With a total of seven patents to his name, Kroger's work focuses on creating innovative inductive devices that offer improved efficiency for various applications.

Latest Patents

Kroger's latest inventions include two notable patents:

1. **Bulk Amorphous Metal Inductive Device**: This device features a magnetic core constructed with low-loss bulk ferromagnetic amorphous metal components. It forms an efficient magnetic circuit with air gaps, presenting a versatile solution for customized magnetic applications. The design includes multiple electrical windings and is ideal for use as transformers or inductors in power conditioning circuits. It operates effectively at switching frequencies ranging from 1 kHz to over 200 kHz, achieving impressive core losses of no more than 12 W/kg at 5 kHz and 0.3 T induction levels. This characteristic significantly enhances its utility for modern electronic applications.

2. **Selective Etching Process for Cutting Amorphous Metal Shapes**: This process allows for the precise cutting of amorphous metal shapes from strip feedstock. By utilizing a chemically resistant material and a pattern-mating technique, the method selectively etches desired shapes. The resulting components can be laminated to produce high-efficiency electric motors and inductive devices. The innovative approach ensures that the assembled components outperform traditional silicon-steel alternatives in terms of core loss and performance at varying frequencies.

Career Highlights

Carl Eugene Kroger's career is marked by his innovative contributions at Metglas, Inc., a leader in the production of amorphous and nanocrystalline metal products. His patents embody a commitment to enhancing efficiency in electrical applications, revolutionizing the way inductive devices are designed and utilized.

Collaborations

Throughout his career, Kroger has collaborated with notable colleagues, including Nicholas J. DeCristofaro and Scott M. Lindquist. Together, they have worked on pushing the boundaries of amorphous metal technology, sharing insights and expertise to foster a culture of innovation within their field.

Conclusion

Carl Eugene Kroger stands out as a significant inventor in the realm of amorphous metal technology, with a portfolio that reflects his dedication to improving efficiency in electrical devices. His innovative patents continue to influence the development of advanced electronic applications, ensuring that his contributions leave a lasting impact on the industry.