Company Filing History:
6 out of 96 
2 out of 32 
1 out of 1 Years Active: 1977-1988
Title: James M Toth: Innovator in Eddy Current Flaw Inspection
Introduction
James M Toth is a notable inventor based in Lyndhurst, OH (US), recognized for his contributions to the field of eddy current flaw inspection. With a total of 9 patents to his name, Toth has made significant advancements in the methods and apparatuses used for inspecting workpiece materials, particularly in the steel industry.
Latest Patents
Toth's latest patents include innovative technologies such as the "Electronically Scanned Eddy Current Flaw Inspection," which describes a method and apparatus for performing eddy current flaw inspection on workpiece materials like steel bar stock. This invention features a drive mechanism that propels a workpiece longitudinally along a designated path. An array of electromagnetic transmitter coils is strategically placed around the workpiece path, and an electromagnetic source energizes these coils under the control of multiplexing circuitry. This setup allows for the sequential actuation of the coils, inducing eddy currents in the workpiece at various locations around its circumference. The detected variations in eddy current are then utilized to produce flaw-indicating signals.
Another significant patent is the "Eddy Current Flaw Detector Having Rotatable Field Defining Sleeve," which outlines a method and apparatus for scanning cylindrical workpieces for flaws. This invention includes a rotatably supported cylindrical metallic sleeve surrounding the workpiece path. Two differentially wound energization coils are positioned near apertures in the sleeve, which are energized with a high-frequency signal to induce eddy currents in the workpiece. The apertures enhance the signals from the coils, indicating the presence of flaws in the workpiece.
Career Highlights
Throughout his career, Toth has worked with prominent companies such as Republic Steel Corporation and LTV Steel Company, Inc. His experience in these organizations has contributed to his expertise in the field of flaw detection and inspection technologies.
Collaborations
Some of Toth's notable coworkers include Richard F Abramczyk and Richard M Harris, who have collaborated with him on various projects throughout his career.
Conclusion
James M Toth's innovative work in eddy current flaw inspection has significantly impacted the industry, showcasing his dedication to advancing inspection technologies. His contributions continue to influence the methods used for ensuring the integrity of workpiece materials.