Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 30, 2022
Patent Application Number
16841017
Date Filed
April 6, 2020
Patent Citations
Patent Primary Examiner
The present invention discloses a locking device for replacing a liner in a thermos. The locking device locks and positions a liner stably by a high-pressure assembling force resulted from an elastic effect, after replacing and assembling the liner in a drinking container. A tightening ring with an elastic force is utilized primarily. The tightening ring is clamped between a mineral liner and a barrel by filling, forming a strong elastic reaction force to press and lock the elements, through a spinning action of a connecting ring.
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