Tamper-Evident Closing Element And Receiving Structure

A combination of a closing element (28) and a receiving structure (24) which together in an initially assembled orientation prevent, but can be subsequently operated to permit, communication through the receiving structure (24), comprising:

• said receiving structure (24) that includes
• (A) at least one laterally projecting shear member (40);
• and
• (B) a spout (30) defining an access passage (32);
• and
• said closing element (28) having
• (A) an open end into which said receiving structure spout (30) extends to accommodate relative rotation between said closing element (28) and said receiving structure (24);
• (B) an aperture (74) for initially receiving said shear member (40) when said closing element (28) and receiving structure (24) are in said initially assembled orientation;
• and
• (C) at least one frangible bridge (78) extending across a portion of said aperture (74) for being severed by said shear member (40) during relative rotation between said closing element (28) and receiving structure (24).