Company Filing History:
Years Active: 1992
Title: Norbert J Hester: Innovator in Electrical Capacitance Measurement
Introduction
Norbert J Hester is a notable inventor based in Cincinnati, OH, recognized for his contributions to the field of electrical capacitance measurement. He holds two patents that showcase his innovative approach to measuring clearance gaps in turbine engines.
Latest Patents
Hester's latest patents include the development of an electrical capacitance clearanceometer. This device is designed to measure the clearance gap between blade tips on a rotor wheel and its confining casing under operating conditions. The clearanceometer employs a capacitive probe that is inserted into the turbine casing, allowing for precise measurements of the distance between the probe electrode and the passing blade tip surface. The system utilizes a voltage-controlled variable frequency oscillator to modulate the oscillator signal based on changes in electrical capacitance, providing an accurate electrical signal proportional to the clearance gap.
Another significant patent by Hester is an adapted clearanceometer system that measures the distance between a housing and a moving member within it. This system features a high-temperature probe containing an electrical inductor and a capacitor electrode, which is positioned adjacent to the moving member. The design includes a cooling air passage to maintain optimal operating conditions for the probe and its components.
Career Highlights
Norbert J Hester has made significant strides in his career, particularly through his work at General Electric Company. His innovative designs and patents have contributed to advancements in turbine engine technology, enhancing the efficiency and reliability of these critical systems.
Collaborations
Hester has collaborated with notable coworkers, including Charles E Hornbeck and Joseph C Young, who have also contributed to the field of electrical engineering and innovation.
Conclusion
Norbert J Hester's work in developing electrical capacitance measurement technologies has made a lasting impact on the industry. His patents reflect a commitment to innovation and excellence in engineering.