This inventor holds 4 USPTO granted patents, plus 1 CIPO patent. Top assignees: Combustion Engineering, Inc., Constar Plastics Inc., Reynolds Metals Company. Active years: 1987-1994.
Company Filing History:
1 out of 1,102 
1 out of 8 
1 out of 432 Years Active: 1987-1994
Title: Innovations by James W. Larsen
Introduction
James W. Larsen is a notable inventor based in Douglasville, GA (US). He has made significant contributions to the field of engineering, particularly in the development of systems for analyzing stress in materials and inspecting surfaces. With a total of 4 patents to his name, Larsen's work showcases his innovative approach to solving complex problems in manufacturing and quality control.
Latest Patents
One of Larsen's latest patents is the "Bottle Stress Analysis System." This system utilizes polarized light to determine stress levels in transparent plastic bottles. It features a rotation assembly that allows for the rotation of the bottle, while a polarized light source assembly is inserted into the bottle cavity to direct plane polarized light through the bottle wall. An analyzer assembly positioned outside the bottle measures the intensity of light passing through the wall. This setup enables the measurement of changes in polarization, facilitating the determination of stress at various points along the bottle wall. The system can produce a stress profile, allowing for the rejection of bottles with abnormal internal stress that may fail under pressure.
Another significant patent is the "Modular Surface Inspection Method and Apparatus Using Optical Fibers." This apparatus is designed for inspecting the surface of moving objects. It includes a modular sensing head assembly with multiple sensing head modules, each containing several sensing stations. These stations generate a line of light across the object's surface and utilize optical detectors to detect scattered light. The signal processing electronics convert the received light into analog signals, which are then digitized and analyzed to identify any surface defects.
Career Highlights
Throughout his career, James W. Larsen has worked with prominent companies such as Constar Plastics Inc. and Reynolds Metals Company. His experience in these organizations has contributed to his expertise in developing innovative solutions for material analysis and inspection.
Collaborations
Larsen has collaborated with notable individuals in his field, including Carl M. Verber and Nile F. Hartman. These collaborations have likely enriched his work and expanded the impact of his inventions.
Conclusion
James W. Larsen's contributions to innovation in material stress analysis and surface inspection demonstrate his commitment to advancing technology in manufacturing. His patents reflect a deep understanding of engineering principles and a dedication to improving product quality and safety.