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John F. Orzechowski received US Patent No. 4,126,541 on November 21, 1978, filed April 25, 1977.
The patent's abstract:
Apparatus for the refinement of colloidal asbestos dispersions comprises a horizontally disposed cylindrical tube having a plurality of closely spaced holes around the periphery thereof, a helical screw disposed within the tube, and a flanged jacket concentric with and spaced outwardly from the tube. A slurry of unrefined dispersion is continuously fed into the tube to fill it. Refined slurry is drawn through the holes by a suction pump connected to the jacket while contaminants are retained in the tube and moved by the screw to the outlet end of the tube where they are compacted and removed as sludge through a spring loaded discharge door.
- Author
- John F. Orzechowski
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 4,126,541
- Date
- November 21, 1978
- Library no.
- ACL Doc 21671 · asbestosclaims.law/library/21671
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 382 KB
Where it was listed
- Asbestos, April 1979, in its patents department (the year's issues)
Cite this document
John F. Orzechowski. “Apparatus and method for refining asbestos dispersions (US Patent 4,126,541, 1978).” November 21, 1978. US Patent No. 4,126,541. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 21671. https://asbestosclaims.law/library/21671.
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