Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2008-01-01
2008-01-01
Lee, Edmund H. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S268000, C264S275000
Reexamination Certificate
active
10466212
ABSTRACT:
A method for creating a seal gasket in the closure cap of a container starting from a cap formed separately, characterised by comprising the following operations: inserting into a cap (1, 10, 100) a first portion (3, 30, 300) of material in the plastic state having barrier properties against O2, CO2, or other gases; inserting a first die (4, 40, 400) to subject said first portion of material to compression in order to form on the base of the cap a first layer (5, 50, 500) of material having barrier properties against said gases; inserting into the cap onto said first layer a second portion (6, 60, 600) of material in the plastic state having hydraulic sealing properties; and inserting a second die (7, 70, 700) to subject said second portion of material to compression in order to form on said first layer a second layer (8, 80, 800) with hydraulic sealing properties.
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Lee Edmund H.
SACMI-Cooperativa Meccanici Imola-Soc. Coop. A.R.L.
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