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David V. Rigney and Peter W. Schilke received US Patent No. 3,879,831 on April 29, 1975, filed July 25, 1973. It was assigned to United Aircraft Corp.
The patent's abstract:
A homogeneous and porous abradable seal material structure comprising principally gamma , gamma '' and/or Beta phases for use in elevated temperature operating apparatus consisting essentially of, by weight, 60-80% Ni, 2-12% Cr, 1-10% Co, 4-20% Al, up to 3% of a refractory metal selected from the group consisting of yttrium, hafnium and lanthanum and 3-15% inert powder material selected from the group consisting of diatomaceous earth (D.E.), boron nitride, silicon glass, mica, vermiculite asbestos, molybdenum disulfide, graphite, cobalt oxide, cerium oxide and zinc oxide.
- Author
- David V. Rigney; Peter W. Schilke
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 3,879,831
- Date
- April 29, 1975
- Library no.
- ACL Doc 23228 · asbestosclaims.law/library/23228
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 407 KB
Where it was listed
- Asbestos, September 1975, in its patents department (the year's issues)
Cite this document
David V. Rigney, Peter W. Schilke. “Nickle base high temperature abradable material (US Patent 3,879,831, 1975).” April 29, 1975. US Patent No. 3,879,831. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 23228. https://asbestosclaims.law/library/23228.
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