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William K. Donaldson, Werner Wilke and Hans Fetzer received US Patent No. 3,608,294 on September 28, 1971, filed June 9, 1969.
The patent's abstract:
AN APPARATUS FOR PRODUCING ASBESTOS YARN FROM AN AQUEOUS DISPERSION OF ASBESTOS FIBERS COMPRISES SUPPLY MEANS FOR THE DISPERSION WITH A DISPENSING DEVICE FOR SHAPING THE DISPERSION INTO A TRAVELLING FILM STRIP ONTO THE SURFACE OF A MOVABLE CARRIER STRUCTURE. AS THE SURFACE TRAVELS PAST THE OUTLET OF THE DISPENSING DEVICE, IT ENTRAINS THE DISPERSION. APPLICATOR MEANS ARE PROVIDED FOR COVERING THE SURFACE OF THE CARRIER STRUCTURE WITH COAGULATING AGENT SO THAT THE ENTRAINED DISPERSION COAGULATES TO A FILM STRIP MATERIAL WHILE IN CONTACT WITH THE CARRIER SURFACE. THE STRIP, AFTER SEPARATION FROM THE CARRIER SURFACE REACHES A POT-SPINNING DEVICE OR OTHER TWISTING MEANS WHICH IS LOCATED DOWNSTREAM OF THE CARRIER SURFACE AND TWISTS THE COAGULATED FILM STRIP TO YARN.
- Author
- William K. Donaldson; Werner Wilke; Hans Fetzer
- Published by
- US Patent Office
- Series
- US Patent No. 3,608,294
- Date
- September 28, 1971
- Library no.
- ACL Doc 21716 · asbestosclaims.law/library/21716
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, January 1972, in its patents department (the year's issues)
Cited on this site
Cite this document
William K. Donaldson, Werner Wilke, Hans Fetzer. “Apparatus for producing coherent bodies from asbestos dispersions (US Patent 3,608,294, 1971).” September 28, 1971. US Patent No. 3,608,294. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21716. https://asbestosclaims.law/library/21716.
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