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INNSAN CO., LTD
| INNSAN CO., LTD Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20090308539 | FILTER MANUFACTURING APPARATUS WITH WELDING - Provided are a filter manufacturing apparatus for fabricating a lower cap with an open upper portion and a lower cap welding portion therein, an upper cap with an open upper portion and an upper cap welding portion therein, and a non-woven fabric of a filter medium between the lower cap and the upper cap, the apparatus comprising a lower cap heating unit for melting only the lower cap welding portion ( | 12-17-2009 |