David A Keller

Title: David A. Keller: Innovator in Optical Fiber Technology

Introduction

David A. Keller is a notable inventor based in Vaureal Cergy, France. He has made significant contributions to the field of optical fiber technology, holding a total of four patents. His innovative methods and designs have advanced the capabilities of optical fiber cables, enhancing their performance and durability.

Latest Patents

Keller's latest patents include a method of covering a ribbon of optical fibers with a resin and an apparatus for the same purpose. The resin used is polymerizable under UV radiation, forming a protective covering that surrounds and holds the fibers securely. The method involves a pre-polymerization step where the coated fibers pass through a UV irradiating chamber. This chamber utilizes a power level that is less than one fourth of the total power required for complete polymerization, just enough to initiate the process. Following this, a finishing step subjects the pre-polymerized ribbon to higher UV radiation power, completing the polymerization process. Another significant patent involves an optical fiber cable featuring truncated triangular profile tubes. This design includes a central strength member surrounded by multiple optical fiber-containing tubes, which are arranged to form a central channel. The unique shape of these tubes enhances the cable's resistance to compression and improves the strain window compared to previous designs.

Career Highlights

Throughout his career, David A. Keller has worked with prominent companies in the telecommunications industry, including Alcatel Cable and Alcatel NA Cable Systems, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical fiber technology.

Collaborations

Keller has collaborated with notable professionals in his field, including Michael L. Adams and Jorgen Pangborn. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.

Conclusion

David A. Keller's work in optical fiber technology exemplifies innovation and dedication to improving telecommunications infrastructure. His patents reflect a commitment to enhancing the performance and reliability of optical fiber cables, making a lasting impact in the industry.