Patent attributes
A drinking vessel sleeve includes a sleeve side wall sheet having a first side wall sheet end and a second side wall sheet end and being coiled into a tubular sleeve configuration having a sleeve circumference so that the first side wall sheet end is radially spaced inwardly from the second side wall sheet end, and including an adjustment lever structure pivotally interconnecting the first and second side wall sheet ends and extending radially inwardly from the first side wall sheet end to define a lever tab portion; so that pivoting the lever tab portion toward the first side wall sheet end increases the sleeve circumference to receive a larger diameter vessel, and pivoting the lever structure toward the second side wall causes the second side wall end to overlap the first side wall end to decrease the sleeve circumference to receive a smaller diameter vessel.
