Charles P Royer

Title: Charles P. Royer and His Patent on Steel Weld Toughness

Introduction

Charles P. Royer is an inventor associated with Houston, Texas, and Exxon Production Research Company. His patent work addresses how to assess the heat-affected zone (HAZ) toughness of steel, an important property for evaluating steel used in welded structures.

Latest Patents

Royer is credited with 1 patent: “Method for Determining the Relative HAZ Toughness of Steel.” The method applies at least two thermal cycles to steel for one or more weld heat-input values, then simulates the HAZ that would result from welding under those conditions. The steel is fractured to measure fracture properties, which can be used to determine midpoint transition temperatures. These temperatures are compared with a previously established maximum standard: a value above the standard may indicate low HAZ toughness, while a value below it may indicate high HAZ toughness.

Career Highlights

Royer’s patent reflects work connected to Exxon Production Research Company and focuses on a systematic approach to evaluating steel performance near welds. By simulating welding-related thermal conditions and comparing measured fracture properties against a standard, the method provides a basis for assessing relative HAZ toughness.

Collaborations

Royer’s listed coworkers include Lewis L. Lacy and Douglas P. Fairchild. The available information identifies these professional associations but does not specify their individual roles in the patent.

Conclusion

Charles P. Royer’s patent presents a method for comparing steel’s heat-affected zone toughness through simulated thermal cycles, fracture testing, and midpoint transition temperature analysis.