Patent ID: 7374053

Claim:
A tamper-indicating dispensing closure, comprising a closure body having a top wall, a first skirt depending from said top wall, a dispensing opening provided in said top wall, and a retention cavity extending radially outwardly from said first skirt, said retention cavity including an inner wall defined by a portion of said first skirt, an outer wall spaced from said inner wall, a first sidewall extending between said inner and outer walls at one end of said retention cavity, and a second sidewall extending between said inner and outer walls at an opposite end of said retention cavity, said closure body including a first retention lug extending into said retention cavity from said first sidewall, and a second retention lug extending into said retention cavity from said second sidewall; and a flip-top lid connected to said closure body for movement between a closed position, in which said flip-top lid covers said dispensing opening, and an opened position, in which said dispensing opening is not covered by said flip-top lid, said flip-top lid including a second skirt having an edge surface which is engageable with said top wall of said closure body when said flip-top lid is in its closed position, a tamper-indicating flange depending from said edge surface such that said tamper-indicating flange is receivable by said retention cavity when said flip-top lid is in its closed position, said tamper-indicating flange including a first retention hook positioned at one end of said flange so as to be engageable with said first retention lug when said flip-top lid is in its closed position, and a second retention hook positioned at an opposite end of said flange so as to be engageable with said second retention lug when said flip-top lid is in its closed position, and at least one frangible member connecting said tamper-indicating flange to said edge surface such that said at least one frangible member fractures when said flip-top lid is initially moved from its closed position to its opened position, whereby said tamper-indicating flange is permanently retained within said retention cavity upon its disconnection from said flip-top lid.