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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2013/137564
Kind Code:
Disclosed is a vacuum apparatus that is not complicated in construction, does not require two receptacle bodies, and is improved in vacuum efficiency. The vacuum apparatus includes a cylinder member provided with a guide shaft disposed in the central area of the inner space thereof, and a piston module including a separating and opening/closing unit and a hollow rod unit with a guide bore in the inside thereof extending downward from the central area of the separating and opening/closing unit. The piston module is fitted in the inside of the cylinder member to separate the inner space of the cylinder member into an upper first space and a lower second space, and provided with a first O-ring to open/close the first space and the second space in relation to each other while being moved vertically according to a moving direction in relation to the cylinder member.

PARK, Jun Young (606-Ho, 14, Guseojungang-ro 15beon-gil,,Geumjeong-gu, Busan 609-803, KR)
Application Number:
Publication Date:
September 19, 2013
Filing Date:
February 15, 2013
Export Citation:
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BORU INTERNATIONAL CO., LTD. (3F, 36 Manhyeon-ro, Suji-gu,,Yongin-si, Gyeonggi-do 448-821, KR)
International Classes:
B65D81/20; F04B33/00; F04B37/16
Foreign References:
Attorney, Agent or Firm:
PARK, HeeJin (4F Miele Haus Building, 607-10 Yeoksam-dong,,Gangnam-gu, Seoul 135-080, KR)
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