Closure for a syringe collection and disposal container

A closure device for permanently closing an opening defined in a syringe collection and disposal container comprising:

• a wheel-shaped cover member having a cut-out portion through which the opening can be accessed and a solid portion sized to completely cover the container opening, said cover member having an inboard side and an outboard side and being connected along its axis of rotation to the container adjacent the container opening in a manner permitting said cover member to be rotated from a first position wherein the opening is accessible through said cut-out portion to a second position wherein the opening is completely covered by said solid portion and said wheel is locked against further rotation,
• a boss formed on the inboard side of said cover member,
• an aperture defined in the container, said boss engaging in said aperture in said second position and preventing rotation of said cover member in any direction, and
• at least one bracket element formed on the container and overlying said aperture, said bracket engaging said outboard side of said cover member to thereby substantially prevent outboard movement of said cover member when said cover member is in said second position, said bracket applying an inboard directed bias to said cover member and boss which forces said boss into engagement with said aperture when in said second position, said cover member thereby being locked in said second position to permanently close the container.