Tool removable tamper indicating closure

A tamper-indicating closure comprising a disc-shaped top with a cylindrical upper skirt extending downwardly from the top;

• an annular upper locking bead around the inner surface of the upper skirt;
• a cylindrical lower skirt proximate and co-axial with the upper skirt, the upper skirt being disposed between the top and and lower skirt;
• an annular retention bead around the inner surface of the lower skirt;
• breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt;
• and a tool aperture between the upper skirt and the lower skirt adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts.

An assembly comprising

• (A) a closure which comprises a disc-shaped top with an upper skirt extending downwardly from the top;
• an annular upper locking bead around the inner surface of the upper skirt;
• a lower skirt proximate to and in center alignment with the upper skirt, the upper skirt being disposed between the top and lower skirt;
• an annular retention bead around the inner surface of the lower skirt;
• breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt;
• and a tool aperture between the upper skirt and the lower skirt adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts, and
• (B) a container having a cooperating neck portion upon which the closure fits in center alignment, the neck portion having an upper interference surface that interlocks with the upper locking bead to provide a releasable interference to the removal of the closure when the upper and lower skirts are parted, and having a retention interference surface below the upper interference surface that interlocks with the retention bead so as to prevent removal of the closure before the upper and lower skirts are parted.

An assembly comprising

• (A) a closure which comprises a disc-shaped top with a cylindrical upper skirt extending downwardly from the top;
• an annular upper locking bead around the inner surface of the upper skirt, a cylindrical lower skirt proximate and co-axial with the upper skirt;
• the upper skirt being disposed between the top and and lower skirt, an annular retention bead around the inner surface of the lower skirt;
• breakable bridge means between the upper skirt and the lower skirt as the sole connection between the upper and lower skirt, and a tool aperture between the upper skirt and the lower skirt, adapted to accept a tool means for breaking the bridge means so as to part the upper and lower skirts,
• (B) a container having a cooperating cylindrical neck portion upon which the closure fits in co-axial alignment, the neck portion having an upper interference surface that interlocks with the upper locking bead to provide a releasable interference to the removal of the closure when the upper and lower skirts are parted, and having a retention interference surface below the upper interference surface that interlocks with the retention bead so as to prevent removal of the closure before the upper and lower skirts are parted.