This inventor holds 3 USPTO granted patents. Top assignees: E.i. Dupont De Nemours and Company, Other. Active years: 1976-2017.
Location History:
- Florence, SC (US) (1976)
- Wilmington, NC (US) (1999 - 2017)
Company Filing History:

Years Active: 1976-2017
Title: William Duke Everhart: Innovator in Fluid Systems and Polyester Recovery
Introduction
William Duke Everhart is a notable inventor based in Wilmington, NC (US). He has made significant contributions to the fields of fluid systems and materials recovery, holding a total of 3 patents. His innovative work has the potential to impact various industries, particularly in plumbing and recycling.
Latest Patents
Everhart's latest patents include a sophisticated water system leak detection system. This system is designed to detect leaks in a fluid plumbing system that maintains a predetermined elevated pressure range. It features a normally open supply valve with an actuator that closes the valve in response to electrical power. The system also includes a programmable timer and a pressure switch that ensures the valve closes when system pressure drops below a set point.
Another significant patent involves the recovery of polyester from contaminated polyester waste. This process allows for the extraction of polyethylene terephthalate from waste materials that contain non-polyester components. By dissolving the polyester in specific solvents, the process separates the polyester solution from contaminants, enabling the recovery of valuable materials.
Career Highlights
Throughout his career, Everhart has worked with prominent companies, including E.I. DuPont De Nemours and Company. His experience in these organizations has contributed to his expertise in developing innovative solutions for complex problems.
Collaborations
Everhart has collaborated with notable individuals in his field, including Charles Raymond McKay and Kamel M Makar. These partnerships have likely enhanced his work and contributed to the success of his inventions.
Conclusion
William Duke Everhart is a distinguished inventor whose work in leak detection systems and polyester recovery showcases his innovative spirit. His contributions are valuable to both the plumbing and recycling industries, reflecting his commitment to advancing technology and sustainability.