John S Barnhart

Title: Innovations by John S. Barnhart in High-Volume Commercial Cooking

Introduction

John S. Barnhart is an accomplished inventor based in Champaign, IL, known for his contributions to high-volume commercial cooking technology. With a total of 2 patents, Barnhart has developed innovative solutions that enhance the efficiency and effectiveness of cooking appliances.

Latest Patents

Barnhart's latest patents include a heat exchanger designed for a gas-fired apparatus used in high-volume commercial cooking. This invention features double-sided griddles, each equipped with a lower platen that has a horizontal top cooking surface and an upper platen with a bottom cooking surface. The upper platen is designed to move into a horizontal position, pressing down on the food until it reaches a predetermined level above the lower platen. Once the food is cooked, the upper platen is lifted away. The apparatus circulates heated oil through a first heat exchanger that transfers heat to the lower platen and a second heat exchanger that does the same for the upper platen. Each heat exchanger consists of three contiguous flat metal layers, with a spiral-like passage for the oil to ensure uniform heating.

Another notable patent by Barnhart is a gas-fired, double-sided griddle apparatus that also focuses on high-volume cooking. This invention includes a positioning mechanism that allows the upper platen to press down on the food, maintaining a constant pressure in the oil circulating apparatus through a weight-controlled valve. The design ensures that the oil transfers heat effectively to both the upper and lower platens, optimizing the cooking process.

Career Highlights

Barnhart is associated with the Gas Research Institute, where he has contributed significantly to the development of innovative cooking technologies. His work has focused on improving the efficiency of gas-fired cooking appliances, making them more effective for commercial use.

Collaborations

Throughout his career, Barnhart has collaborated with notable colleagues, including Paul E. George, II and Donald E. Fritzsche. These partnerships have fostered a creative environment that has led to the development of groundbreaking cooking technologies.

Conclusion

John S. Barnhart's innovative patents in high-volume commercial cooking demonstrate his commitment to enhancing cooking efficiency and effectiveness. His work continues to influence the industry, paving the way for future advancements in cooking technology.