Company Filing History:
Years Active: 1987-2004
Title: The Innovative Contributions of John D Hull
Introduction
John D Hull is a notable inventor based in Lincoln, NE (US), recognized for his significant contributions to the field of sampling technology. With a total of nine patents to his name, Hull has developed innovative solutions that enhance the efficiency and safety of sampling volatile liquids.
Latest Patents
Among his latest inventions is a sampler designed to sample hot liquids containing volatile materials. This device cools the liquid in a refrigerator and pumps it through a syringe needle into a container until the container overflows. The needle is then removed slowly, allowing the container to close automatically as the needle is withdrawn. This design ensures that liquid flows upward continuously as the needle is extracted through an opening. The cap for the container features a closure with a valve opening that is sized to narrowly receive the syringe needle in a perpendicular valve member opening. The valve member includes a flat member on one end, which is adapted to be gripped by a cam follower for the coordinated opening and closing of the valve in relation to the movement of the syringe needle.
Career Highlights
Throughout his career, John D Hull has worked with several prominent companies, including Isco, Inc. and Dutton-Lainson Company. His experience in these organizations has contributed to his expertise in developing innovative sampling technologies.
Collaborations
Hull has collaborated with notable individuals in his field, including Paul George Wright and Lowell Robert Nickolaus. These partnerships have likely played a role in the advancement of his inventions and the sharing of ideas.
Conclusion
John D Hull's contributions to the field of sampling technology demonstrate his innovative spirit and dedication to improving safety and efficiency in handling volatile materials. His patents reflect a commitment to advancing technology in practical and impactful ways.