Robert L Cramer

Title: The Innovative Contributions of Robert L. Cramer

Introduction

Robert L. Cramer is a notable inventor based in Davenport, IA (US), recognized for his significant contributions to the field of oxygen generation systems. With a total of 10 patents to his name, Cramer has developed innovative technologies that enhance the efficiency and reliability of breathing apparatuses.

Latest Patents

One of Cramer's latest patents is titled "Control means for molecular sieve on-board oxygen generator." This invention features a control device that measures both temperature and pressure of the inlet air in oxygen generating systems. An electronic control unit applies pressure limits to a pressure measurement signal and combines it with a temperature measurement signal to produce a composite analog signal. This signal is then converted to a frequency signal, which is divided by a constant to create a drive signal for controlling the absorb/vent bed cycle valves. The system operates efficiently even at inlet air pressures as low as 5 PSIG, ensuring higher efficiency than previous systems.

Another significant patent is the "Spring-free pressure regulator with structure isolating exhaled air." This gas mixing pressure regulator is designed for closed circuit breathing apparatuses. It includes a first inlet for pressurized air, a pressure-responsive demand valve, and a second inlet for supplying carbon dioxide-free exhaled air. The design ensures that the demand valve is isolated from the mixing chamber to prevent contamination, thereby enhancing reliability and stability.

Career Highlights

Throughout his career, Robert L. Cramer has worked with prominent companies such as The Bendix Corporation and Litton Systems, Inc. His experience in these organizations has contributed to his expertise in developing advanced technologies for breathing apparatuses.

Collaborations

Cramer has collaborated with notable individuals in the field, including James A. Mientus and Jack E. Dunbar. These collaborations have further enriched his work and led to innovative solutions in oxygen generation systems.

Conclusion

Robert L. Cramer's contributions to the field of oxygen generation and breathing apparatus technology are significant. His innovative patents and collaborations reflect his dedication to enhancing the efficiency and reliability of these essential systems.