Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
M. Lynn Dunlap0
Date of Patent
April 2, 2024
0Patent Application Number
175665900
Date Filed
December 30, 2021
0Patent Citations
...
Patent Primary Examiner
CPC Code
Patent abstract
A variable volume evacuable container has a closed bottom, an open top, and a spirally threaded inner wall extending therebetween. A lid configured to threadably engage the inner wall has a top surface, a perimeter, a bottom surface, and a funneling volume within the perimeter and below the bottom surface. A duct is defined through the top and bottom surfaces at the apex of the funneling volume, and a moveable baffle is coupled to the top surface to cover or uncover the duct. The bottom surface slopes continuously upward to the apex so that downward rotation of the lid against contained liquid forces air out of the duct until the liquid fills the funneling volume, allowing the baffle to seal the liquid from air by covering the duct.
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