S D Mack

Title: The Innovative Contributions of S D Mack

Introduction

S D Mack is a notable inventor based in Mira Loma, California. He is recognized for his innovative work in the field of cartridge design, particularly with his patent for a pre-stressed cartridge case. His invention showcases a significant advancement in the strength and reliability of cartridge cases.

Latest Patents

S D Mack holds a patent for a pre-stressed cartridge case. This invention comprises a cylindrical liner wrapped with multiple layers of high tensile fibers or wires. The high tension wrapped windings compress the walls of the cartridge liner, resulting in a pre-stressed cylindrical liner. This design allows the cartridge to achieve an ultimate strength in the circumferential direction that can be nearly ten times greater than that of a typical solid metal cylinder. The patent also includes various modifications, such as using ceramic for the liner and incorporating a steel cup for the explosive.

Career Highlights

S D Mack has made significant contributions to the field of defense technology through his work at General Dynamics Corporation, specifically in the Air Defense Systems Division. His innovative designs have played a crucial role in enhancing the performance and safety of military cartridges.

Collaborations

Throughout his career, S D Mack has collaborated with notable colleagues, including Norman H Andersson and Edward W LaRocca, who is now deceased. These collaborations have contributed to the advancement of technology in their field.

Conclusion

S D Mack's contributions to the field of cartridge design exemplify the importance of innovation in enhancing military technology. His patent for the pre-stressed cartridge case represents a significant advancement that improves the strength and reliability of cartridges.