Harold E Stehman

Title: Innovations by Harold E. Stehman: A Pioneer in X-ray Tube Technology

Introduction

Harold E. Stehman, an accomplished inventor based in Hales Corners, Wisconsin, has made significant contributions to the field of X-ray technology. With a focus on enhancing the efficiency and accuracy of X-ray tubes, Stehman holds two patents that embody his innovative spirit and engineering expertise.

Latest Patents

One of Stehman's notable inventions is the "X-ray Tube Anode Voltage Compensator." This system addresses the challenge of voltage variations from power sources by employing a transformer to supply a consistent voltage between the anode and cathode of an X-ray tube. The invention utilizes analog signals to sense the prevailing source voltage and the selected applied voltage, converting these to binary digital codes. These codes serve as addresses for a programmed read-only memory, which dictates the pattern for tap switch settings, ensuring the transformer delivers the desired voltage under varying conditions.

Another significant patent from Stehman is for the "X-Ray Tube Grid Bias Supply." This innovative design features an adjustable focus X-ray tube where the cathode is connected to the negative side of a DC power supply, and the anode is connected to the positive side. A voltage divider linked to the cathode ensures that the derived bias voltage for the focusing electrode remains proportional to the cathode voltage, effectively negating the impact of voltage variations on the focusing capabilities of the X-ray tube.

Career Highlights

Harold E. Stehman has built a reputable career at General Electric Company, where he has utilized his skills and knowledge to advance the field of medical imaging. His work in developing X-ray tube technologies showcases his commitment to innovation within the company and the broader medical community.

Collaborations

Throughout his career, Stehman has collaborated with esteemed coworkers such as Herbert E. Daniels and Brian P. Moran. These partnerships have allowed for the exchange of ideas and technological advancements, further enhancing the quality and efficiency of the innovations produced.

Conclusion

Harold E. Stehman's contributions to X-ray technology represent a significant advancement in the field, particularly in enhancing the functionality and reliability of X-ray tubes. His patents reflect a deep understanding of the technical challenges faced in medical imaging and a dedication to providing solutions that improve patient outcomes. As an inventor, Stehman continues to inspire future innovations in the realm of medical technology.