Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Simultaneously burning – vaporizing – or melting of embedded...
Reexamination Certificate
2007-10-02
2007-10-02
Mayes, Melvin (Department: 1734)
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Simultaneously burning, vaporizing, or melting of embedded...
C264S632000, C264S636000, C264S637000, C159S046000
Reexamination Certificate
active
10509640
ABSTRACT:
The present invention forms screw-like projection at the entrance of ceramic bottle and enables air-tightening with plastic cork, formed with screw-like projection in its body. It guarantees air tightening of ceramic bottle, and does not use imported cork, which decreases the need to import. Moreover, increases productivity by automating the air-tightening process of plastic cork. The present invention can reduce cost of production, at the same time, increasing productivity, and it can be re-used multiple times after the air-tightening.
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