Tamper-proof closure

Claim 1

A tamper-proof closure which includes: an initially integral closure top and closure lid, said top and said lid being connected by a web, said lid, said top and said web being formed of a flexible resilient material, said web being sufficiently thin so that it can be flexed without breaking in the assembly of such closure, said web being capable of being broken, said top and said lid being separate and apart except as connected by said web prior to the assembly of said closure, said top and said lid being capable of being pivoted about said web to an assembled position in which said lid overlies said top during the assembly of said closure, said lid and said top carrying cooperating bearing means and trunnion means capable of being snapped together during the assembly of said closure, said bearing means and said trunnion means being located remote from said web and serving to mount said lid on said top when said closure is assembled, means for attaching said closure to a container formed on said lid, an opening for use in dispensing material extending through said top, means on said lid for covering said opening when said closure is assembled, said closure being capable of being initially opened by breaking said web and by pivoting said lid with respect to said top through the operation of said coacting bearing and trunnion means, said coacting bearing and trunnion means serving to secure said lid to said top after said closure has been initially opened so that said lid can be rotated between an open position in which said opening is uncovered and a closed position in which said opening is covered.