A System and Method for Forming a Moulded Article
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United States of America Patent
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Issued Date -
Nov 9, 2023
app pub date -
Nov 4, 2021
filing date -
Nov 4, 2020
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Abstract
A system and method of producing a moulded article, e.g. a one-piece container, comprises delivering a fibre suspension to a porous mould and removing a suspending liquid (e.g. water) via pores of the porous mould. An inflatable bladder is inserted into the mould in a collapsed state and then inflated to apply pressure to internal walls of the article to remove water content. A wet embryonic form of the container is then transferred to a non-porous mould where an inflatable bladder applies internal pressure to compress the walls and remove further water content. The container is further dried by microwave and/or air drying and may be coated with a protective layer.
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