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Asbestos pipeline felt (US Patent 3,607,515, 1971)

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Walter L. Pennie received US Patent No. 3,607,515 on September 21, 1971, filed July 18, 1967.

The patent's abstract:

An improved corrosion and stress resistant coating-wrap system for pipelines is made by coating the contacting surface of asbestos felt with a thin coating layer of either coal tar compounds having softening points in the range of about 120* F.250* F. or natural and synthetic rubber-based coating compounds. Subsequent application of this coated felt to the hot enamel coating on a pipeline results in a void free felt-enamel interface.

Author
Walter L. Pennie
Published by
US Patent Office
Series
US Patent No. 3,607,515
Date
September 21, 1971
Library no.
ACL Doc 21811 · asbestosclaims.law/library/21811
Rights
US government work, in the public domain.

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Where it was listed

Cite this document

Walter L. Pennie. “Asbestos pipeline felt (US Patent 3,607,515, 1971).” September 21, 1971. US Patent No. 3,607,515. US Patent Office. AsbestosClaims.Law Library, ACL Doc 21811. https://asbestosclaims.law/library/21811.

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