Patent ID: 7819265

Claim:
A child-resistant package that includes: a container having an open mouth, an angularly spaced array of external projections with notches on undersides of said projections, and a conical internal surface around said mouth, and a closure having a base wall, a first annular wall with angularly spaced internal lugs receivable within said notches, and a second annular wall disposed radially inwardly from said first annular wall and in resilient sealing engagement with said conical internal surface, each of said internal lugs having convex radially inwardly facing surfaces, said convex radially inwardly facing surface of each said lug having a clockwise edge and a counterclockwise edge as viewed from said base wall, said clockwise edge being closer than said counterclockwise edge to an inside surface of said first annular wall, wherein said second annular wall has a substantially cylindrical portion adjacent to said base wall and a conical portion extending from a free end of said substantially cylindrical portion at an angle inwardly from said first wall and away from said base wall, and wherein said closure is of molded plastic construction and said conical portion extends at an angle from said cylindrical portion as molded, wherein during application of said closure to said container neck finish, said second annular wall of said closure slides along said first conical portion of said conical internal surface of said container and onto said second conical portion of said conical internal surface of said container, wherein when said closure is secured to said container neck finish, said second annular wall of said closure sealingly contacts said first conical portion of said conical internal surface of said container, wherein during removal of said closure from said container neck finish, said closure is pushed downwardly over said container neck finish against a spring force of said second annular wall of said closure against said second conical portion of said conical internal surface of said container, wherein said greater angle of said second conical portion facilitates removal of said closure.