Coating processes – Particles – flakes – or granules coated or encapsulated
Reexamination Certificate
2011-03-29
2011-03-29
Chen, Bret (Department: 1715)
Coating processes
Particles, flakes, or granules coated or encapsulated
C427S213310, C423S657000, C420S900000
Reexamination Certificate
active
07914846
ABSTRACT:
A process for encapsulating a metal hydride within a hollow glass sphere is provided. The process includes providing a hollow glass sphere, the hollow glass sphere having a shell enclosing an inner volume. The hollow glass sphere is placed within an enclosed chamber and the chamber is evacuated such that a negative pressure is present therewithin. The hollow glass sphere within the evacuated enclosed chamber is subjected to an external element such that the shell affords for molecules to diffuse therethrough. In some instances, the external element is heat, infrared light and combinations thereof. Thereafter, a metal hydride is provided in the form of a vapor and the evacuated enclosed chamber with the hollow glass sphere is exposed to metal hydride vapor and molecules of the metal hydride diffuse through the shell into the inner volume. Thereafter, the external element is removed from the hollow glass sphere such that diffusion of molecules through the shell is generally prohibited and the metal hydride within the hollow glass sphere is in a dense state.
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Chen Bret
Gifford Krass Sprinkle Anderson & Citkowski P.C.
Toyota Motor Engineering & Manufacturing North America, Inc
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