Abstract: A system for axial coupling a first member with a second member is provided. The first member comprises a polygonal locking neck telescopingly receiving a polygonal portion of the second member. An inside wall of the locking neck comprises at least one arresting member and an angular locking member, configured for selectively arresting the angular arresting member and retaining the second member at a locked position. An inside face of the polygonal portion of the second member comprises a flat face portion and an arresting portion extending at a reflex angle with respect to the flat face portion, and a plurality of locking teeth disposed along the arresting portion, each configured for engaging with the at least one arresting member. The flat face portion is partitioned from the arresting portion by an axially extending angular arresting member configured for arresting by the locking member.

Abstract: A container comprises a cover member and a receptacle member axially displaceable therewithin for selective axial arresting therewith. A polygonal locking neck of the cover member telescopingly receives a polygonal portion of the receptacle member. A circumcircle of the polygonal portion is smaller than an inscribed circle of the polygonal locking neck. The polygonal portion of the receptacle member can be reciprocated about a longitudinal axis between a locked position at which an arresting member is engaged with locking teeth of the receptacle member, and an unlocked position at which the at least one arresting member is disengaged from the locking teeth of the receptacle member. Twisting of the cover member and the receptacle member at opposite senses results in disengaging the locking teeth of the receptacle member from the at least one arresting member of the cover member, into the unlocked position.

Abstract: Provided is a fastening assembly and a container system containing the same. The fastening assembly includes a cylindrical neck member, including a series of convolutions axially extending around at least a portion of the external surface of the neck member and forming an interrupted helical thread of incomplete formation; a collar member configured for screw fastening with the neck member, including at least one rib configured for thread-engagement with the helical thread, the at least one rib forming a portion of an internal thread.

Abstract: Provided is a fastening assembly and a container system containing the same. The fastening assembly includes a cylindrical neck member, including a series of convolutions axially extending around at least a portion of the external surface of the neck member and forming an interrupted helical thread of incomplete formation; a collar member configured for screw fastening with the neck member, including at least one rib configured for thread-engagement with the helical thread, the at least one rib forming a portion of an internal thread.