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Daniel L. Juhl received US Patent No. 3,591,447 on July 6, 1971, filed January 31, 1967. It was assigned to Raybestos Manhattan Inc.
The patent's abstract:
A LOW DENSITY CORK-FILLED ASBESTOS FELT COMPOSED OF FIRST AND SECOND WEBS OF DRY CARDED SPINNINNG GRADE ASBESTOS FIBERS, BETWEEN WHICH THERE IS AN INTERMEDIATE DISCONTINUOUS LAYER OF GRANULATED CORK PARTICLES WHICH, PRIOR TO BEING COMBINED WITH THE WEBS OF ASBESTOS FIBERS, ARE COATED WITH FROM 1 TO 10 PERCENT OF A THERMOSETTING RESIN. IN THE FELT, FIBERS IN THE OPPOSING SURFACES OF THE FIRST AND THE SECOND WEBS EXTEND THROUGH THE INTERSTICES IN THE DISCONTINUOUS LAYER OF GRANULATED CORK PARTICLES AND ARE ENTANGLED WITH FIBERS FROM THE OPPOSING WEB. THE CORKFILLED ASBESTOS FELT CONTAINS FROM 20 TO 50 PERCENT, BY WEIGHT, OF A THERMOSETTING RESIN. A PROCESS FOR PREPARING THE CORK-FILLED ASBESTOS FELT IS ALSO DESCRIBED.
- Author
- Daniel L. Juhl
- Published by
- US Patent Office
- Series
- US Patent No. 3,591,447
- Date
- July 6, 1971
- Library no.
- ACL Doc 22876 · asbestosclaims.law/library/22876
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, November 1971, in its patents department (the year's issues)
Cited on this site
Cite this document
Daniel L. Juhl. “Low density cork-asbestos felt and process of producing the same (US Patent 3,591,447, 1971).” July 6, 1971. US Patent No. 3,591,447. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22876. https://asbestosclaims.law/library/22876.
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