Location History:
- Hartford, CT (US) (1993)
- Glastonbury, CT (US) (1993)
- Stuart, FL (US) (1997)
Company Filing History:
Years Active: 1993-1997
Title: The Innovative Contributions of Donald E. Johnson
Introduction
Donald E. Johnson is a notable inventor based in Hartford, CT (US). He has made significant contributions to the field of engineering, particularly in the development of advanced technologies. With a total of 3 patents to his name, Johnson's work reflects a commitment to innovation and problem-solving.
Latest Patents
One of Johnson's latest patents is for a rocket nozzle designed for a rocket engine. This diverging rocket engine nozzle features a system that allows ambient gases to flow from the outside to the inside of the nozzle's chamber. The design includes a plurality of coolant conduits adjacent to the inside surface of the nozzle, which are spaced apart to create multiple vent openings extending from the inside to the outside of the nozzle's chamber. A series of valves control gas flow through these vent passages, particularly when the pressure outside the nozzle exceeds that adjacent to its inner surface. This innovative cooling system not only enhances performance but also protects the valves at their attachment points.
Another significant invention by Johnson is the flarable retainer. This retainer is designed to secure a first element to a second element, particularly in highly stressed environments such as the rotating components of a turbomachine. The retainer features a deformable portion on one end, an internally threaded portion, and a shoulder on the opposite end to prevent rotation during assembly. The deformable portion extends through cooperating retainer apertures in the two elements and is flared in place to create a clinching force, effectively securing the two components together.
Career Highlights
Donald E. Johnson is currently employed at United Technologies Corporation, where he continues to apply his expertise in engineering and innovation. His work at this esteemed company has allowed him to contribute to various projects that push the boundaries of technology.
Collaborations
Throughout his career, Johnson has collaborated with several talented individuals, including Richard J. Bergmann and Rafael A. Bustamante. These partnerships have fostered an environment of creativity and innovation, leading to the development of groundbreaking technologies.
Conclusion
Donald E. Johnson's contributions to engineering and technology are marked by his innovative patents and collaborative spirit. His work continues to influence the field, showcasing the importance of creativity and problem-solving in engineering.