Lockable container spout closure

Claim 1

In a lockable closure for a container spout including a dished inner cap defined by an upright cylindrical side wall and a bottom wall and having a central axis about which it is adapted for rotation to and from closing relationship relative to an open container spout end, an outer cap completely covering said inner cap and cooperating therewith to define a cavity, connecting means securing the outer cap to the inner cap for preventing separation of one from the other but permitting relative rotation therebetween about the central axis, a key-operable lock mounted in the outer cap and including a cylinder projecting into the cavity and having a key-operable barrel located therein and projecting therethrough into the cavity, a stop means formed integrally with the upright cylindrical side wall of the inner cap and located in said cavity, a lock member, means operatively connecting the lock member to the barrel for radial reciprocation, in response to selected rotation of the barrel, between a lock position wherein it rotates clear of the stop means when the outer cap is rotated and an unlock position wherein it engages its stop means and causes the inner cap to be rotated with the outer cap when the latter is rotated, the improvement comprising: a guide member fixed to the outer cap and projecting into the cavity at a distance from the central axis which is less than the distance the stop means is from the central axis; and said lock member having an elongated guide slot therein and positioned with said guide member located in said guide slot, whereby when the lock member is in its unlock position, the guide member will serve to transmit rotation of the outer cap to the inner cap by way of the locking member.