Title:
BOTTLE STOPPER HAVING VACUUM PUMP
Document Type and Number:
WIPO Patent Application WO/2011/118885
Kind Code:
A1
Abstract:
The present invention relates to a bottle stopper having a vacuum pump that can create a vacuum state inside a bottle by discharging the air inside the bottle to the outside. The bottle stopper having the vacuum pump of the present invention comprises: a case having a first discharge port in the lower membrane thereof; a piston, which is coupled to the case in such a manner that a vertical movement is enabled, and which has a second discharge port in the upper membrane thereof; a first opening/closing member, which opens/closes the first discharge port based on the vertical movement of the piston; a second opening/closing member, which opens/closes the second discharge port based on the vertical movement of the piston; an elastic member, which is placed between the case and the piston and provides elasticity to the piston; a first separation preventing member, which is coupled to the upper part of the case and prevents the piston from being separated; a second separation preventing member, which is provided inside the case and prevents the first opening/closing member from being separated; a third separation preventing member, which is coupled to the upper part of the piston and prevents the second opening/closing member from being separated; and a packing member, which is coupled to the lower part of the case and inserted inside the bottle, thereby sealing the bottle airtight and simultaneously communicating the inside of the bottle with the first discharge port.
Inventors:
KIM YONG-KUG (KR)
Application Number:
PCT/KR2010/004784
Publication Date:
September 29, 2011
Filing Date:
July 21, 2010
Export Citation:
Assignee:
KIM YONG-KUG (KR)
International Classes:
B65D47/34; B65D47/32; B65D51/16; B65D81/20
Domestic Patent References:
| WO2008043151A1 | 2008-04-17 |
Foreign References:
| KR20040007284A | 2004-01-24 | |||
| KR200445177Y1 | 2009-07-07 | |||
| KR100920184B1 | 2009-10-06 | |||
| JP2003182755A | 2003-07-03 |
Attorney, Agent or Firm:
CHEONJEE INTERNATIONAL PATENT & LAW FIRM (KR)
특허법인 천지 (KR)
특허법인 천지 (KR)
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Claims: