This inventor holds 6 USPTO granted patents. Top assignees: Midland Manufacturing Limited, Delaware Capital Formation, Inc.. Active years: 1984-2001.
Company Filing History:
5 out of 23 
1 out of 659 Years Active: 1984-2001
Title: Ralph G Portis: Innovator in Tank Valve Technology
Introduction
Ralph G Portis is a notable inventor based in Highland Park, IL (US). He holds a total of 6 patents that showcase his contributions to innovative technologies, particularly in the field of tank valve systems. His work has significantly impacted the design and functionality of liquid handling systems.
Latest Patents
One of Portis's latest patents is for "Handles for bottom outlet valve assembly." This invention features a bottom outlet valve for a tank car, which includes a nozzle projecting from the bottom and a locking member. The outlet cap is designed to cover the opening and can move between open and closed positions, ensuring a liquid-tight seal when closed. The design incorporates a moveable handle that engages with the locking member, allowing for secure operation.
Another significant patent is the "Switch level control for tank ullage determining system." This invention includes a liquid level sensor with coaxial inner and outer tubes that extend into the tank. The switch assembly operates in response to a float that moves along the outer tube, providing accurate liquid level readings. The design allows for manual adjustment while preventing inadvertent movement, enhancing the reliability of the system.
Career Highlights
Throughout his career, Ralph G Portis has worked with several companies, including Midland Manufacturing Limited and Delaware Capital Formation, Inc. His experience in these organizations has contributed to his expertise in developing innovative solutions for tank systems.
Collaborations
Portis has collaborated with notable individuals in the field, including Robert H Dean and Gaston C Barmore, Jr. These partnerships have likely fostered a creative environment that has led to the development of his patented technologies.
Conclusion
Ralph G Portis is a distinguished inventor whose work in tank valve technology has made a significant impact on the industry. His innovative patents reflect his commitment to enhancing liquid handling systems, showcasing his expertise and dedication to invention.