Patent ID: 8083086

Claim:
Closure arrangement for containers of the type comprising at least one lateral wall ( 11 ) ending in an upper edge ( 12 ) and an annular upper wall ( 13 ) having an outer edge ( 13 a ) hermetically affixed to the lateral wall ( 11 ) and an inner edge ( 13 b ) defining an upper opening ( 14 ) to be closed by a lid ( 20 ), characterized in that the lid ( 20 ) comprises a middle wall ( 21 ) carrying a peripheral wall ( 22 ) externally provided with a first and second circumferential groove ( 23 , 24 ) and externally incorporating an annular flange ( 25 ), in which is inferiorly incorporated at least one pending circumferential projection ( 26 ), the annular upper wall ( 13 ) being provided with at least one circumferential recess ( 16 ), said lid ( 20 ) being assembled in a first closing position, after the filling of the product, in which the inner edge ( 13 b ) of the annular upper wall ( 13 ) is fitted in the first circumferential groove ( 23 ) of the lid ( 20 ), axially retaining the latter and defining therein a first sealing region and in which the pending circumferential projection ( 26 ) of the lid ( 20 ) is fitted, by interference, in the circumferential recess ( 16 ) of the annular upper wall ( 13 ), defining therein a second sealing region, said lid ( 20 ) being mounted in a second closing position, after a first opening, in which the inner edge ( 13 b ) of the annular upper wall ( 13 ) is fitted in the second circumferential groove ( 24 ) of the lid ( 20 ), axially retaining the latter and defining therein a third sealing region in which the pending circumferential projection ( 26 ) is held elevated and unfitted in relation to the circumferential recess ( 16 ) of the annular upper wall ( 13 ).