Paul T Johnsen is a notable inventor based in Ridgecrest, CA (US). He has made significant contributions to the field of rocket propulsion technology, holding 2 patents that showcase his innovative approach to enhancing rocket performance and safety.

Latest Patents

One of his latest patents is titled "Vapor deposition of a thin polymer film on solid propellant rocket grain." This invention involves applying a thin film of ignition inhibitor uniformly to a rocket propellant grain, which may be large and have a complex shape. The film is applied through the condensation and polymerization of a vaporized monomer, which is prepared by thermally cracking the dimer of paraxylylene or a halogenated paraxylylene derivative. Another significant patent is the "Active spray rocket propellant ignition controller." This invention features an igniter for solid fuel rockets, where hot gases from an initiator are channeled to drive a piston against a reservoir of combustion-modifying fluid, such as ethylene glycol. This mechanism sprays the fluid onto the propellant grain just before ignition, enhancing the ignition process.

Career Highlights

Paul T Johnsen works for the United States as represented by the Secretary of the Navy. His role involves developing advanced technologies that improve the efficiency and safety of rocket propulsion systems. His work has been instrumental in advancing the capabilities of solid fuel rockets.

Collaborations

Throughout his career, Johnsen has collaborated with notable colleagues, including Alfred O Smith and Robert B Dillinger. These collaborations have contributed to the development of innovative solutions in the field of rocket technology.

Conclusion

Paul T Johnsen's contributions to rocket propulsion technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in rocket safety and performance.