This inventor holds 6 USPTO granted patents. Top assignees: The Secretary of State for Defence in Her Britannic Majesty's Government, The Secretary of State for Defense in Her Britannic Majesty's Government, Other. Active years: 1979-1988.
Location History:
- Camberley, GB (1979 - 1987)
- Frimley, GB (1987)
- Frimley, Camberley Surrey, GB (1988)
Company Filing History:
4 out of 703 
1 out of 25 
1 out of 834,350 Years Active: 1979-1988
Title: The Innovative Contributions of James E Restall
Introduction
James E Restall is a notable inventor based in Camberley, GB. He has made significant contributions to the field of materials science, particularly in the development of protective coatings and cleaning processes for metallic articles. With a total of 6 patents to his name, Restall's work has had a considerable impact on various industries.
Latest Patents
Restall's latest patents include innovative methods for creating metallic protective coatings. One of his notable inventions involves a substrate, such as a single crystal gas turbine blade, which is given a protective coating through composite electrodeposition. This method utilizes a metal matrix containing particles of CrAlY, where the matrix can be composed of Ni, Co, or Fe. The particle size is crucial, with a preference for 75% by weight being between 3.9 and 10.5 micrometers. The coating undergoes heat treatment to facilitate interdiffusion between the matrix constituents and the particles.
Another significant patent focuses on a halide-based process for cleaning metal articles. This method effectively removes surface oxidation and corrosion contamination, particularly from cracked superalloy turbine components. The process employs a pulsed pressure cycle, which is established through alternate evacuation and replenishment. Operating at 150 torr or less, the cycle utilizes CHF3 hydrogen and inert gas as the atmosphere, with the evacuation phase ideally reaching 20 torr or less. This innovative cleaning process is also applicable for etching to detect near-surface flaws.
Career Highlights
Throughout his career, Restall has worked with esteemed organizations, including the Secretary of State for Defence in Her Britannic Majesty's Government. His expertise in materials science and engineering has allowed him to contribute to critical projects that enhance the performance and reliability of various components.
Collaborations
Restall has collaborated with notable individuals in his field, including Cecil Hayman and John Foster. These partnerships have fostered innovation and the exchange of ideas, further advancing the technologies he has developed.
Conclusion
James E Restall's contributions to the field of materials science through his patents and innovative methods have significantly impacted industries reliant on advanced metallic components. His work continues to inspire future innovations in protective coatings and cleaning processes.