Company Filing History:
2 out of 188 
1 out of 4,992 
Years Active: 1998-2005
Title: George A Hartman: Innovator in Extensometer and Actuator Technology
Introduction
George A Hartman is a notable inventor based in Waynesville, Ohio. He holds a total of 3 patents that showcase his contributions to the fields of extensometer and actuator technology. His innovative designs address critical issues in measurement and actuation, making significant advancements in these areas.
Latest Patents
One of Hartman's latest patents is the Stable LVDT Extensometer. This new extensometer design overcomes prior art problems such as drift and variations caused by environmental factors like temperature and humidity. The device features two primary body parts that hold specimen contact rods at one end and a displacement measuring sensor at the other. A thin hinge area connects these parts, allowing for restricted relative movement, which is limited to a single rotational degree of freedom.
Another significant invention is the Magnetostrictive Actuator. This actuator comprises an actuator base, a magnetostrictive assembly, an actuator frame, and a flexible disk. The magnetostrictive assembly includes a magnetostrictive element that is mechanically coupled to the actuator base. The flexible disk features a perimetrical disk portion and a bearing surface portion, enhancing the actuator's functionality. This design also incorporates a plurality of cooling fluid bores within the magnetostrictive material portion, ensuring efficient operation.
Career Highlights
Throughout his career, George A Hartman has worked with esteemed organizations such as the University of Dayton and the United States of America as represented by the Secretary of the Air Force. His work in these institutions has contributed to the advancement of technology in measurement and actuation.
Collaborations
Hartman has collaborated with various professionals in his field, including his coworker, James R Sebastian. Their joint efforts have led to innovative solutions and advancements in their respective areas of expertise.
Conclusion
George A Hartman is a distinguished inventor whose work in extensometer and actuator technology has made a lasting impact. His patents reflect his commitment to innovation and problem-solving in engineering.