This inventor holds 5 USPTO granted patents. Top assignees: Thiokol Corporation, Alliant Techsystems Inc., Cordant Technologies Inc.. Active years: 1996-2011.
Company Filing History:
3 out of 383 
1 out of 492 
1 out of 49 Years Active: 1996-2011
Title: Ralph S Tappan: Innovator in Rocket Propulsion Technology
Introduction
Ralph S Tappan is a notable inventor based in Brigham City, UT (US). He has made significant contributions to the field of rocket propulsion, holding a total of 5 patents. His innovative designs have advanced the technology used in solid propellant rocket motors and flares.
Latest Patents
One of Tappan's latest patents is for a precision controlled variable thrust solid propellant rocket motor. This invention allows for the operation of a multiple-stage solid rocket motor in a way that controls its mass discharge profile. The design includes mechanisms for igniting one stage while the first continues to burn, enhancing performance and efficiency. Another significant patent is for a plume enhancement nozzle designed to achieve flare rotation. This aerodynamically stable flare features a housing with an illuminant and multiple nozzles strategically positioned to stabilize the flare during combustion.
Career Highlights
Throughout his career, Ralph S Tappan has worked with prominent companies in the aerospace industry, including Thiokol Corporation and Alliant Techsystems Inc. His work has been instrumental in developing advanced technologies that are critical for modern rocketry.
Collaborations
Tappan has collaborated with several talented individuals in his field, including David W Endicott and Ross W Guymon. These partnerships have contributed to the successful development of his innovative projects.
Conclusion
Ralph S Tappan's contributions to rocket propulsion technology through his patents and collaborations highlight his importance as an inventor. His work continues to influence advancements in aerospace engineering and solid propellant systems.