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George W. Luhrmann received US Patent No. 2,439,014 on April 6, 1948, filed December 23, 1944.
The patent's description opens (from the scanned text):
This invention relates to a mobile apparatus for preparing fibrous material, such as shredded finely divided particles of asbestos, fiberglas, etc., to be pneumatically conveyed through a flexible conduit and to be discharged, together with a suitable dry agglutinant and an activating agent, from a nozzle or dispersing gun against a target surface to which the asbestos or other fibre is to be adhesively attached, for forming acoustical, heat, or other insulating or absorbent coatings on interior surfaces of walls, ceilings, etc., of buildings, ships or other structures.
- Author
- George W. Luhrmann
- Published by
- US Patent Office
- Series
- US Patent No. 2,439,014
- Date
- April 6, 1948
- Library no.
- ACL Doc 21686 · asbestosclaims.law/library/21686
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 6 pages · 651 KB
Where it was listed
- Asbestos, May 1948, in its patents department (the year's issues)
Cite this document
George W. Luhrmann. “Apparatus for Preparing Finely Divided Fibre Stock for Fluid Conveyance (US Patent 2,439,014, 1948).” April 6, 1948. US Patent No. 2,439,014. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21686. https://asbestosclaims.law/library/21686.
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