Company Filing History:
Years Active: 1983-1996
Title: Innovations and Contributions of Richard D Hance
Introduction
Richard D Hance is an accomplished inventor based in Elburn, Illinois. He holds three patents that showcase his expertise in electrical engineering and medical technology. His innovative work has made significant contributions to the fields of harmonic current reduction and ultrasound therapy.
Latest Patents
One of Hance's latest patents is a method and apparatus for reducing harmonic currents. This invention improves the harmonic content of AC line and neutral line currents in polyphase AC source distribution networks. The apparatus employs a polyphase Zig-Zag transformer connected between the AC source distribution network and a load. Additionally, it includes a mechanism for increasing the source neutral impedance of the AC source distribution network, which can consist of a choke installed in the neutral line.
Another notable patent is an ultrasound therapy device. This device features a hand-held transducer connected to a base unit with a front display and control panel. The control circuit within the base unit is microprocessor-based, allowing operators to select various output modes, intensities, and durations. The device also monitors transducer current, voltage, and phase angle for servo control, coupling detection, and fault protection from an efficient power amplifier.
Career Highlights
Throughout his career, Richard D Hance has worked with notable organizations such as Dynawave Corporation and Universities Research Association, Inc. His experience in these companies has contributed to his development as an inventor and innovator in his field.
Collaborations
Hance has collaborated with several professionals, including Edward J Barsotti and Leon H Beverly. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
Richard D Hance's contributions to innovation, particularly in harmonic current reduction and ultrasound therapy, highlight his significant impact on technology. His patents reflect a commitment to improving electrical systems and medical devices, showcasing his expertise and dedication to advancing these fields.