Patent ID: 8544902

Claim:
An engagement lock for a container having a pair of locking rings, each of the locking rings having an aperture, said engagement lock comprising: a first member comprising a rod-shaped elongate body defining first and second ends, and defining an axis in the longitudinal direction of said rod-shaped elongate body, said first end constituting an insertion end defining a surface and a first transverse dimension, and said second end comprising a head defining a second transverse dimension larger than said first transverse dimension of said insertion end; a second member unconnected to said first member and having a cavity defining a third transverse dimension allowing said insertion end to snap-fit interlock with said second member when said insertion end of said first member is introduced through the apertures of said locking rings and into said cavity, said second member defining a fourth transverse dimension; wherein said second transverse dimension of said head of said first member, and said fourth transverse dimension of said second member are larger than the apertures of said locking rings, and wherein said first transverse dimension of said insertion end is smaller than the apertures of said locking rings; said insertion end being provided on said surface with a first number of first anti-rotational elements extending longitudinally along said surface; and said cavity of said second member being provided with a second number of second anti-rotational elements configured for engaging and locking with said first anti-rotational elements when said insertion end is inserted into said cavity so as to inhibit rotation of said first member relative to said second member.