Deformable pulp paper product, its method of manufacture and method of use
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United States of America Patent
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Mar 7, 1989
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N/A
app pub date -
Jul 17, 1987
filing date -
Jul 17, 1987
priority date (Note) -
Expired
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Abstract
A deformable molded fiber product is formed by a method of felting, pressing and drying the compressed product having a uniformly spaced series of low density ridges on one surface. These ridges provide the molded fiber product with sufficient flexibility so that is may be subjected to a hot swaging like process to change its dimensions. A method of forming detents by hot pressing is also shown. The process is particularly useful in forming combustible nitrocellulose shell casings from a single pulp molding operation.
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