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Johann Zagorski received US Patent No. 2,809,397 on October 15, 1957, filed September 18, 1953.
The patent's description opens (from the scanned text):
The invention consists now in that to 20% to 60% asbestos wool or Wadding-like asbestos, depending on its quality or its intended use and relating to the weight of the new packing, to 15% soot, advantageously smoke black or retort carbon dust, or up to this percentage superfine ground glass powder or another superfine ground abrasive of almost colloidal fineness or up to this percentage these both are added simultaneously and in a drum the content is subjected, preferably in separated operations, to a rotating or shaking movement or both ...
- Author
- Johann Zagorski
- Published by
- US Patent Office
- Series
- US Patent No. 2,809,397
- Date
- October 15, 1957
- Library no.
- ACL Doc 23028 · asbestosclaims.law/library/23028
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 2 pages · 257 KB
Where it was listed
- Asbestos, November 1957, in its patents department (the year's issues)
Cite this document
Johann Zagorski. “Method for preparing self lubricating, asbestos containing stuffing box packings (US Patent 2,809,397, 1957).” October 15, 1957. US Patent No. 2,809,397. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23028. https://asbestosclaims.law/library/23028.
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