Snap on pull off tamper indicating flexible cap and neck configuration

Claim 1

A push on, pull off tamper indicating flexible cap and neck configuration for containers having a neck surrounding an opening therein comprising: a plurality of circumferentially and vertically spaced spiral thread configurations on said neck having lead-in points to form multiple means for registering engagement with said flexible cap having registrable spiral thread configurations thereon, a pair of vertically arranged fastening configurations on the exterior of said neck, a continuous groove within said fastening configurations defining vertically spaced identical ratchet portions, said cap comprising a top portion, an annular depending wall on the peripheral edge of said top portion, an outturned annular flange extending from the bottom peripheral edge of said annular depending wall, a tear skirt having continuous vertical ratchet teeth with connecting members formed thereby joined to said annular outturned flange to support the tear skirt, an inturned locking flange intermediately within the continuous vertical ratchet teeth, a frangible line in said tear skirt and a pull tab secured to said tear skirt at one side of said frangible line, said inturned locking flange within the continuous vertical ratchet teeth on the inner surface of the tear skirt arranged to engage within said continuous groove in said fastening configuration, said continuous vertical ratchet teeth arranged to engage said vertically fastening configurations on the neck of the container to prevent rotation of the cap until the tear skirt is removed.