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Howard Gleason Donovan received US Patent No. 3,701,484 on October 31, 1972, filed November 20, 1970. It was assigned to Johns Manville.
The patent's abstract:
A size reduction method and apparatus are provided in which a pair of coaxially aligned opposing nozzles impel liquid streams toward one another between a pair of panels that form a narrow zone that extends radially outwardly from the axis of the nozzles. A plurality of posts protrude into the narrow zone. These posts increase the size reduction capability of the apparatus and are particularly effective in opening (reducing the diameter of) fibers, such as asbestos, and reducing the particle size of particulate materials such as clay, pigments and the like.
- Author
- Howard Gleason Donovan
- Published by
- US Patent Office
- Series
- US Patent No. 3,701,484
- Date
- October 31, 1972
- Library no.
- ACL Doc 21672 · asbestosclaims.law/library/21672
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, April 1973, in its patents department (the year's issues)
Cite this document
Howard Gleason Donovan. “Apparatus and process for suspending solids (US Patent 3,701,484, 1972).” October 31, 1972. US Patent No. 3,701,484. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21672. https://asbestosclaims.law/library/21672.
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