Roy P Crawford

Title: Roy P Crawford: Innovator in Crystal Growth and Hydrodynamic Systems

Introduction

Roy P Crawford is a notable inventor based in Saratoga, CA (US), recognized for his contributions to the fields of crystal growth and hydrodynamic systems. With a total of four patents to his name, Crawford has made significant advancements that enhance the efficiency and precision of various industrial processes.

Latest Patents

Crawford's latest patents include a "Crucible weight measurement system for controlling feedstock introduction in Czochralski crystal growth." This innovative weighing system is designed for a continuous Czochralski process, accurately measuring the weight of the crucible and melt during crystal growth. It effectively controls the introduction of feedstock to maintain a constant weight. The system is capable of measuring the crucible's weight while it rotates and is resistant to vibrations from the melt surface and variable torques on the crucible shaft. Additionally, it measures the weight of the crucible and its contents to regulate the amount of feedstock recharged after an ingot is withdrawn.

Another significant patent is the "Hydrodynamic pump," which features an integrated bearing and pump assembly. This assembly positions a hydrodynamic pump coaxially with a hydrodynamic bearing, providing pressurized fluid for use within the device. The hydrodynamic pump includes a secondary hydrodynamic bearing optimized for high flow pumping applications, ensuring efficient fluid flow when the bearing assembly is rotated.

Career Highlights

Throughout his career, Roy P Crawford has worked with prominent companies, including International Business Machines Corporation (IBM) and Solaicx, Inc. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Crawford has collaborated with notable individuals in his field, including Robert B Watrous and Paul A Gilovich. These partnerships have likely fostered a creative environment that has led to the development of his patents.

Conclusion

Roy P Crawford's contributions to the fields of crystal growth and hydrodynamic systems demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology and improving industrial processes.