Company Filing History:
4 out of 224 
3 out of 448 
1 out of 1 Years Active: 1977-2004
Title: Nathaniel E Hager, III: Innovator in Concrete and Polymer Cure Measurement
Introduction
Nathaniel E Hager, III is a notable inventor based in Lancaster, PA (US). He has made significant contributions to the field of materials science, particularly in the measurement of cure status for concrete and polymers. With a total of 9 patents to his name, Hager's work has advanced the understanding and technology surrounding these materials.
Latest Patents
Hager's latest patents include innovative methods and apparatuses for measuring the cure status of thermosetting materials. One of his key inventions is a method and apparatus for the measurement of concrete cure status. This invention utilizes time domain reflectometry to determine the cure state of thermosetting concrete. A miniature capacitor is constructed at the end of a coaxial transmission line, which is immersed in the curing concrete. The concrete acts as the dielectric of the capacitor, and step function voltage pulses are fed to the transmission line. The reflected signal from the line is monitored, and the amplitude at several points of the reflected pulses indicates the degree of cure, which is then interpreted and displayed by a computer.
Another significant patent is the method and apparatus for in-situ measurement of polymer cure status. Similar to his concrete measurement invention, this apparatus uses time domain reflectometry to assess the cure state of thermosetting polymers. A miniature capacitor is also constructed at the end of a coaxial transmission line immersed in the curing polymer. The reflected signals are analyzed to determine the degree of cure and viscosity, providing valuable data for material processing.
Career Highlights
Throughout his career, Hager has worked with prominent companies such as Armstrong Cork Company and Armstrong World Industries, Inc. His experience in these organizations has contributed to his expertise in materials science and innovation.
Collaborations
Hager has collaborated with notable coworkers, including Roman C Domszy and John R Garrick. Their combined efforts have furthered advancements in the field of material measurement and technology.
Conclusion
Nathaniel E Hager, III is a distinguished inventor whose work in measuring the cure status of concrete and polymers has made a lasting impact on the industry. His innovative patents and collaborations highlight his commitment to advancing materials science.