David N Alftine

Title: Innovations by David N. Alftine

Introduction

David N. Alftine is an accomplished inventor based in Bettendorf, Iowa. He has made significant contributions to the field of oxygen enrichment systems, holding three patents to his name. His work primarily focuses on enhancing the efficiency and effectiveness of oxygen concentrators, particularly for aircraft use.

Latest Patents

One of Alftine's latest patents is an oxygen concentrator with a pressure booster. This innovative device utilizes a booster compressor to increase the pressure of the product gas, allowing for a greater volume of gas to be stored in a plenum. The design features two moving pistons that are rigidly linked, along with a series of check valves to control gas flow. The system includes an oxygen sensor that monitors the concentration of oxygen in the product gas, ensuring that it meets the required levels for crew use at various altitudes.

Another notable patent is the molecular sieve oxygen monitor. This monitoring system is designed to determine the concentration of oxygen in the product gas of an oxygen-enriching system. It incorporates a differential pressure regulator to maintain a preset pressure level and solenoid valves to manage the pressurization and venting of the monitoring system. The molecular sieve material adsorbs oxygen from the product gas, and the system is equipped with a pressure transducer that converts pressure readings into an electrical analog for comparison and analysis.

Career Highlights

David N. Alftine has made a significant impact in his field through his work at Litton Systems, Inc. His innovative designs and patents have contributed to advancements in oxygen delivery systems, particularly in aviation. His expertise in this area has positioned him as a key figure in the development of reliable oxygen concentrators.

Collaborations

Throughout his career, Alftine has collaborated with notable colleagues, including Richard W. Hradek and William P. Myers. These partnerships have fostered a collaborative environment that has led to the successful development of advanced technologies in oxygen enrichment.

Conclusion

David N. Alftine's contributions to the field of oxygen enrichment systems are noteworthy. His innovative patents and collaborative efforts have significantly advanced the technology used in aircraft oxygen delivery systems. His work continues to influence the industry and improve safety for aviation crews.