Patent ID: 7757872

Claim:
A removable cap assembly, comprising: a cap having a curved side wall having an inner surface and an outer surface, a top portion extending from said curved side wall, a boss extending perpendicularly from said top portion, a circumferential rib extending perpendicularly from said top of said boss, said boss and rib defining an opening in said cap, said opening having a width and a height; a stopper dimensioned to seal said opening, said stopper having a hole therein configured to allow a fluid to flow there through, said stopper being maintained in said cap by said boss, said stopper including a sealing surface flange and a cylindrical wall portion, said sealing surface flange dimensioned to receive the bottom edge of said boss; a sealing ring, said sealing ring formed separately from said stopper and configured to fit against an inside surface of said top portion of said cap; a stopper lock, said stopper lock configured to press against said stopper, sealing surface flange and said sealing ring, sealing them against the inside of said cap, said stopper lock, configured to lock in place against said boss of said cap; and an appliance member adapted to be positioned within said hole of said stopper and extending through said opening; and wherein said boss further comprises stopper clips spaced from said top portion of said cap, and wherein said stopper lock further comprises locking notches, said locking notches corresponding to said stopper clips so as to lock said stopper lock against said boss of said cap with said stopper and said sealing ring therebetween.