Glass manufacturing – Processes – Self-supporting particle making
Patent
1974-04-15
1977-04-12
Lindsay, Jr., Robert L.
Glass manufacturing
Processes
Self-supporting particle making
65 22, 65141, 65142, 264 15, 264 43, 264 54, 425 4C, C03B 1910, C03B 1908
Patent
active
040172902
ABSTRACT:
A method and apparatus for making uniform pellets for laser driven fusion reactors which comprises selection of a quantity of glass frit which has been accurately classified as to size within a few micrometers and contains an occluded material, such as urea, which gasifies and expands when heated. The sized particles are introduced into an apparatus which includes a heated vertical tube with temperatures ranging from 800.degree. C to 1300.degree. C. The particles are heated during the drop through the tube to molten condition wherein the occluded material gasifies to form hollow microspheres which stabilize in shape and plunge into a collecting liquid at the bottom of the tube. The apparatus includes the vertical heat resistant tube, heaters for the various zones of the tube and means for introducing the frit and collecting the formed microspheres.
REFERENCES:
patent: 2676892 (1954-04-01), McLaughlin
patent: 3171714 (1965-03-01), Jones et al.
patent: 3350213 (1967-10-01), Peyches
patent: 3365315 (1968-01-01), Beck et al.
Budrick Ronald G.
King Frank T.
Martin Alfred J.
Nolen, Jr. Robert L.
Solomon David E.
KMS Fusion, Inc.
Lindsay, Jr. Robert L.
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