Method for detaching or separating a sealing film or foil sealingly attached to the rim of the neck of a bottle, or the like, and a screw cap for implementation of said method

Abstract From the Canadian patent

In a method for the at least partial detachment or separation of a sealing film or foil 14 that is sealingly attached to a rim 11 of a neck 3 of a container, vessel bottle 1, or the , like, which rim 11 has a circular sealing surface 12 and the neck 3 has a male thread 4 and a center axis 5 and a screw , cap 7 having a female thread 6 complementary to said male thread 4 is screwed down onto the male thread 4 of the sealed neck 3 whilst the screw cap 7 can be unscrewed at any later point in time, as desired, when the screw cap 7 is unscrewed from the neck 3, said sealing film 14 is at least partially detached from said rim 11 of the neck 3 radially, starting , from the periphery of …