Location History:
- Muntin Lupa, PH (1991)
- Santa Rosa, CA (US) (1993)
- Metro Manila, PH (1993)
Company Filing History:
Years Active: 1991-1993
Title: The Innovative Contributions of David Holligan
Introduction
David Holligan is a notable inventor based in Muntin Lupa, Philippines. He has made significant contributions to the field of engineering, particularly in the development of fluid-resistant technologies. With a total of 3 patents to his name, Holligan's work reflects a commitment to innovation and practical solutions in industrial applications.
Latest Patents
One of Holligan's latest inventions is the brittle lined pipe connector. This innovative design features one or more rigid sealing segments attached to pipe end sections, creating a fluid-resistant joint. The assembly is lined in such a way that a segment surface forms the primary sealing interface of lined pipe sections, eliminating the need for a conventional removable liner edge seal. The unique lining process and configuration ensure a sealable bond between the liner and the fluid-resistant sealing segment, as well as the non-fluid-resistant pipe. This method not only minimizes liner stress but also effectively covers the non-fluid-resistant material of the pipe. In an alternative embodiment, the sealing segments engage at mating threaded surfaces, providing a single primary sealing and engagement interface. Additionally, redundant liner end sealing can be achieved through a sandwiched deformable material, enhancing the reliability of sealing harsh fluids. Another embodiment allows portions of the rigid sealing segments to be slidably mounted relative to each other, with the primary seal interface being temperature actuated.
Career Highlights
David Holligan is currently employed at the Union Oil Company of California, where he continues to apply his expertise in engineering and innovation. His work at the company has allowed him to develop practical solutions that address industry challenges.
Collaborations
Holligan has collaborated with notable colleagues, including William C. Allen and Stephen D. Pye. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
David Holligan's contributions to the field of engineering through his innovative patents demonstrate his dedication to improving industrial technologies. His work, particularly in the development of the brittle lined pipe connector, showcases the potential for practical solutions in fluid resistance.