Title:
Vacuation device
Document Type and Number:
Japanese Patent JP6166774
Kind Code:
B2
Abstract:
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.
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Inventors:
Park, Junyoung
Application Number:
JP2015500351A
Publication Date:
July 19, 2017
Filing Date:
February 15, 2013
Export Citation:
Assignee:
BORU INTERNATIONAL CO., LTD.
International Classes:
F04B33/00; B65B31/04; F04B37/14
Domestic Patent References:
| JP50016363A | ||||
| JP2000300445A | ||||
| JP1150502U |
Foreign References:
| WO2007139332A1 |
Attorney, Agent or Firm:
Masago Onishi
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