Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 12, 2019
Patent Application Number
15604806
Date Filed
May 25, 2017
Patent Citations Received
Patent Primary Examiner
Patent abstract
An airtight structure includes a first plate, a second plate, a wick structure mounted between the first plate and the second plate. A middle portion of the second plate forms a cup portion. The cup portion and the first plate together define a cavity. The wick structure is received in the cavity. A portion of the first plate extends upwardly to form a first extending portion. The first extending portion is a hollow cylinder. A portion adjacent to an end of the second plate forms a through hole corresponding to the first extending portion. The first extending portion extends through the through hole, an inner surface of the through hole contacts the first extending portion.
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