Location History:
- Hollister, CA (US) (1977 - 1979)
- Phoenix, AZ (US) (1994)
Company Filing History:
5 out of 8 
2 out of 10 
1 out of 832,843 Years Active: 1977-1994
Title: The Innovations of Donald N Thatcher: A Pioneer in Propellant Technology
Introduction
Donald N Thatcher, based in Hollister, California, is a distinguished inventor known for his significant contributions to the field of propellant technology. With a remarkable portfolio of seven patents, Thatcher has made pivotal advancements that enhance the efficiency and applications of combustion products in various industries.
Latest Patents
Among his latest patents, one notable invention is focused on active binder propellants incorporating burning rate catalysts. This innovation introduces new propellant compositions characterized by the addition of specific simple salts and double salts, both metallic and non-metallic, with the common anion B.sub.10 H.sub.10.sup.-2. These components function as burn rate catalysts rather than fuels when integrated with nitrocellulose-based propellants. Furthermore, Thatcher's unique methodology includes coprecipitating the simple salts with an oxidizer, resulting in a third class of burn rate enhancers that significantly improve the performance of the propellants.
Another of his groundbreaking patents describes a class of high burning rate propellants, which are particularly useful for gun or rocket applications, gas generators, or specialized scenarios requiring exceedingly high burning rates. This invention involves replacing the conventional oxidizers typically utilized in various propellants with coprecipitated salts of decahydrodecaboric acid and specific oxidizing agents. The resultant propellants utilize this coprecipitate as the major component of the solids loading and may also incorporate certain simple decahydrodecaborate salts to further enhance the burning rates.
Career Highlights
Donald N Thatcher's career involves significant tenure at Teledyne McCormick Selph, an operating division of Teledyne Industries. His work has been pivotal in furthering the understanding and development of advanced propellant technology, thereby impacting military, aerospace, and other related fields.
Collaborations
Throughout his professional journey, Thatcher has collaborated with notable colleagues, including Terrence P Goddard and Charles G Garrison. These partnerships have contributed to a dynamic exchange of ideas and innovations that bolster the field of propellant research and development.
Conclusion
In conclusion, Donald N Thatcher stands out as an influential figure in the realm of propellant innovation. His extensive patent portfolio and collaborative efforts underscore his commitment to advancing technology in combustion and propulsion systems. As the landscape of propellant technology continues to evolve, Thatcher's contributions will undoubtedly play a crucial role in shaping its future.