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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/013405
Kind Code:
A vacuum-sealed case according to an embodiment of the present invention comprises: a container body, the upper surface of which is open, and which has a containing space formed therein; an upper cover installed on the upper surface of the container body in an attachable/detachable manner; and a component containing portion which is arranged between the upper cover and the container body, and which contains an air suction device for forming a vacuum with regard to the containing space and a power supply portion for applying a voltage to the air suction device. The air suction device comprises: an electromagnet contained in at least one space portion provided in the component containing portion and installed on one side wall of the space portion; a moving wall portion which is arranged perpendicularly to the bottom surface of the space portion, which has a permanent magnet, and which is configured to move between a first position near the one side wall and a second position near the other side wall of the space portion; and an elastic body, both ends of which are coupled to the one side wall and to the moving wall portion, respectively, so as to provide the moving wall portion with power such that the same returns to the first position. The space between the moving wall portion and the other side wall is a sealed space. When the voltage is applied to the electromagnet, the moving wall portion approaches the electromagnet by means of magnetism and moves to the first position. Air flows from the containing space into the sealed space through an intake opening formed through the other side wall such that the sealed space and the containing space communicate with each other.

Application Number:
Publication Date:
January 17, 2019
Filing Date:
November 28, 2017
Export Citation:
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International Classes:
B65D81/20; B65D21/08; F04B35/04; F04B37/14
Foreign References:
Attorney, Agent or Firm:
RYU, Sungwon et al. (KR)
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