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Laverne S. Birks and Mohammad Fatemi received US Patent No. 3,963,439 on June 15, 1976, filed September 5, 1975. It was assigned to United States Department of the Navy.
The patent's abstract:
A method of forming parallel aligned chrysotile asbestos fibers on a thin bstrate for use in a system for identifying the chrysotile asbestos in air pollution samples. The system comprises a collimated x-ray beam which is incident on the parallel aligned asbestos fibers. Diffracted x-rays are detected by an adjustable proportional counter set at the diffraction line position for the (002) plane. Background intensity may be detected by a second adjustable counter set above the axis at the same angle 2θ, or the sample may be rotated 90° and the one detector used to detect diffracted and background x-rays.
- Author
- Laverne S. Birks; Mohammad Fatemi
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 3,963,439
- Date
- June 15, 1976
- Library no.
- ACL Doc 23225 · asbestosclaims.law/library/23225
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 6 pages · 458 KB
Where it was listed
- Asbestos, September 1977, in its patents department (the year's issues)
Cited on this site
Cite this document
Laverne S. Birks, Mohammad Fatemi. “Multielectrode apparatus and techniques to prepare aligned asbestos fibers on a thin substrate (US Patent 3,963,439, 1976).” June 15, 1976. US Patent No. 3,963,439. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 23225. https://asbestosclaims.law/library/23225.
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