Title:
CHECK VALVE FOR VACUUM PACKAGING
Document Type and Number:
WIPO Patent Application WO/2010/056046
Kind Code:
A2
Abstract:
The present invention relates to a check valve disposed on a vacuum packaging pack for discharging air from the inside of the pack to the outside, thereby creating a vacuum state and allowing complete sealing by blocking intake of outside air. More particularly, the check valve comprises a base, an exhaust valve coupled to the inside of the base, and a cap coupled to the external upper portion of the base. A pack for vacuum packaging is inserted and fixed at a joint located between the base and the cap. The check valve of the present invention is easy to assemble due to its simple configuration and reduces manufacturing costs due to the reduced number of parts. The check valve of the present invention is advantageous in that even after a pack equipped with the check valve is vacuumed and preserved over a long period of time, the exhaust valve stays in place, thus maintaining the vacuum and blocking the intake of outside air.
Inventors:
CHO HEE-SUNG (KR)
Application Number:
PCT/KR2009/006633
Publication Date:
May 20, 2010
Filing Date:
November 12, 2009
Export Citation:
Assignee:
S TECH CO LTD (KR)
CHO HEE-SUNG (KR)
CHO HEE-SUNG (KR)
International Classes:
B65D30/24; F16K15/16
Foreign References:
| JP2006273370A | 2006-10-12 | |||
| US20080118190A1 | 2008-05-22 | |||
| US20050036718A1 | 2005-02-17 | |||
| US20070014492A1 | 2007-01-18 |
Attorney, Agent or Firm:
JO, JOO YOUNG (KR)
조주영 (KR)
조주영 (KR)
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