Gas-barrier synthetic resin vessel, device for producing the...

Details Gas-barrier synthetic resin vessel, device for producing the... Gas-barrier synthetic resin vessel, device for producing the...

2005-02-15

2005-02-15

Tolan, Ed (Department: 3725)

Metal deforming

With 'coating' of work

C072S038000, C072S047000, C072S715000, C413S018000, C427S237000, C427S249700

Reexamination Certificate

active

06854309

ABSTRACT:
A gas barrier synthetic resin container10has an opening portion12defined by a flange12A, a body portion14having the opening portion12, and a bottom portion16for closing the end of the body portion14. The container10is a wide mouth container having the minimum inside diameter Dmin of the opening portion12larger than the maximum inside diameter Dmax of the body portion. Alternatively, the container10may be a wide mouth container having the minimum inside diameter Dmin of the opening portion12smaller than the maximum inside diameter Dmax of the body portion, the difference between the diameters being equal to or less than 20 mm. A diamond-like carbon film18is formed on an outer wall of the body portion14and bottom portion16of the container10. After the container10has been filled with contents, a metal cover20and the flange12A are double-seamed onto the container to provide improved gas barrier properties to the entire container.

REFERENCES:
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patent: 6503579 (2003-01-01), Murakami et al.
patent: 6589619 (2003-07-01), Nagashima
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patent: 2001-158976 (2001-06-01), None

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