Wilhelmina E E Johnston

Title: Wilhelmina E E Johnston: Innovator in Air Vent Technology

Introduction

Wilhelmina E E Johnston is a notable inventor based in Boca Raton, FL (US). She has made significant contributions to the field of air vent technology, particularly with her innovative designs that enhance the efficiency of air admittance systems.

Latest Patents

Johnston holds a patent for an air vent valve, specifically an air admittance valve assembly. This invention allows ambient air to vent into a system while effectively preventing the escape of gases. The design features a housing with first and second passageways in fluid communication through a valve seat. A flat, generally thin, flexible, and preferably resilient free-floating sealing membrane is positioned atop the valve seat, ensuring sealing engagement by gravity only. This innovative mechanism allows ambient air in the second passageway to flow freely into the first passageway and the system at system air pressure that is less than atmospheric pressure, while simultaneously preventing air within the system from escaping through the valve assembly.

Career Highlights

Throughout her career, Johnston has demonstrated a commitment to innovation and problem-solving in her field. Her work has led to advancements that improve the functionality and reliability of air vent systems.

Collaborations

Johnston collaborates with Ian F Johnston, who is also involved in her innovative projects. Their partnership has contributed to the development and refinement of her patented technologies.

Conclusion

Wilhelmina E E Johnston is a pioneering inventor whose work in air vent technology has made a significant impact. Her innovative air admittance valve assembly exemplifies her dedication to enhancing system efficiency and safety.