Method and apparatus for making spiral separators

United States of America Patent

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Issued Date
May 8, 2008
app pub date
Nov 8, 2006
filing date
Nov 8, 2006

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Abstract

An aluminum mold for the interior surfaces of one or more spirals is rotated at a temperature sufficient to melt a weldable plastic such as LLDP or HDP plastic in a predetermined amount sprinkled thereon. Plastic powder not melted is recovered and redeposited until all the plastic powder is melted. The mold or molds are then cooled and the formed spiral is removed.

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Patent Owner(s)

Patent Owner	Address
OUTOTEC OYJ PLC PUBLIC LIMITED COMPANY	RIIHITONTUNTIE 7 E ESPOO FI-02200

International Classification(s)

B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Grey, Thomas J	Jacksonville, FL	10	29

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Method and apparatus for making spiral separators

Number of patents in Portfolio can not be more than 2000

United States of America Patent

11594682

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APP PUB NO	20080105995A1
SERIAL NO	11594682
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11594682

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