Charles A Sjogren

Title: Inventor Spotlight: Charles A. Sjogren

Introduction

Charles A. Sjogren is an innovative inventor based in Houston, TX. With a commendable portfolio that includes two patents, Sjogren has made significant contributions to advancements in explosive technology. His work, particularly in the field of shaped charges and perforating apparatuses, exemplifies his expertise and ingenuity.

Latest Patents

Sjogren's most recent patents showcase innovative designs aimed at improving the efficiency and safety of explosive devices.

1. **Shaped Charge Capsule**: This patent describes a unique shaped charge capsule featuring an open-ended casing designed to house an explosive. The casing includes a shoulder that receives a cap to close it securely. Notably, a ring is positioned radially inside the rim of the casing, which can be crimped to ensure the cap remains attached. This inventive feature allows the ring to melt above a predetermined temperature, releasing the cap safely. Alternatively, the cap may be secured using an adhesive that decomposes when the temperature threshold is reached.

2. **Perforating Apparatus**: In this invention, shaped charges are designed for installation in a typical end-loaded carrier, enhanced by a domed annular retainer member made of a thin, rigid material. The apparatus includes a smaller diameter, externally-tapered sleeve that fits over the retainer member once the shaped charge is installed. When a port plug, with an internally-tapered recess, is forced over the sleeve, it compresses the retainer sleeve laterally. This innovative mechanism secures the shaped charge in place while minimizing the risk of inward or axial deflection.

Career Highlights

Charles A. Sjogren operates at Schlumberger Technology Corporation, where his role focuses on the development of advanced explosive applications. His tenure at this leading technology company has allowed him to drive innovations that enhance operational efficiency and safety in the field.

Collaborations

Over the years, Sjogren has collaborated with talented colleagues such as Daniel C. Markel and Karen M. Spenley. Together, they contribute to the ongoing progression of technology within the industry, reinforcing the importance of teamwork in driving innovation.

Conclusion

Charles A. Sjogren's commitment to innovation and his contributions through his patents reflect a deep understanding of explosive technologies. As he continues to explore new avenues for development, his work at Schlumberger Technology Corporation positions him as a valuable asset in the field of invention and technology advancement.