Patent ID: 8317048

Claim:
An closable assembly having a self-actuated closure, comprising (a) a body having a round section thereon; (b) a cover having a round section thereon, said round section of said cover being engageable with said round section of said body, being relatively rotatable with respect to said body when engaging therewith, and having an axial position of approximate maximum engagement therewith, said position of approximate maximum engagement being such that, at said position, the axes of said round sections of said cover and said body are approximately aligned; (c) a closure mechanism comprising a first and a second set of mutually interlocking assemblies, wherein the first said interlocking assembly is part of either said body or said cover, and the second said interlocking assembly part of the other of said body or said cover; (d) said first interlocking assembly comprising at least one first interlock piece protruding in a radial direction with respect to the round section of the cover or body of which it is a part; (e) said second interlocking assembly comprising at least one second interlock piece protruding in a radial direction with respect to the round section of the cover or body of which it is a part; (f) said first and second interlock pieces being respectively positioned on said first interlock assembly and said second interlock assembly such that a radially extending portion of said first interlock piece is engageable with said a radially extending portion of said second interlock piece at about said axial position of approximate maximum engagement, said engagement of said first and second interlock pieces further defining an approximate rotational position of engagement; (g) said cover and said body each further comprising at least one member of at least one pair of mutually attractive or repulsive elements; (h) said mutually attractive or repulsive elements being respectively positioned on said body and said cover so as to cause relative rotation between said body and said cover to rotate first and second interlock pieces into mutual engagement when said body and said cover are brought into proximity of each other; and (i) said mutually attractive or repulsive members being further respectively positioned on said body and said cover so that upon reaching approximately their closest position relative to each other upon said engagement, said cover and said body are relatively positioned angularly at about said approximate rotational position of engagement of said first and second interlock pieces.