Patent ID: 8453866

Claim:
A package, comprising: a container having a neck with an external helical thread formation; and a closure for the container, the closure having a top and bottom and a radius and comprising: a plastic closure cap including a top wall portion, and an annular skirt portion depending from said top wall portion, said skirt portion including a helical, closure thread formation defining a closure thread helix, and having a thread start at an end of said closure thread formation space furthest from said top wall portion, said closure thread formation being configured for cooperating threaded engagement with the external helical thread formation on said container, said closure including at least one rotation-inhibiting projection on the inside surface of said skirt portion configured vertically asymmetrically of said closure thread formation, said rotation-inhibiting projection having a radial thickness that increases over a vertical extent of the projection toward the top of said closure so that said projection predominantly engages an upper surface of said container external helical thread formation during removal of said closure from said container.