Abstract: A tamper-evident closure for sealing a package cooperates with a separately applied indicator ring, which is torn apart during the opening of the package, so that a portion of the indicator ring drops clear of the closure to indicate that the closure has been turned at least partially off of the package. The indicator ring has a lower mounting portion and an upper ratchet and indicating portion which is connected to the lower mounting portion of the ring by a series of frangible connectors which are ruptured as the cap is removed.

Abstract: A safety closure system includes a cap removably mounted on the neck of a container and prevented from undesired opening by means of a locking ring mounted on the container neck and which locking ring has means such as tooth engaged with complementary locking means such as notches on the cap. The cap and locking ring also contain positioning means to orient the ring with respect to the cap so as to assure proper engagement of the ring locking means with the cap locking means. During assembly the ring is loosely mounted on the neck and mounting of the cap mounts the ring in place.

Abstract: A safety closure device for use in dispensing flowable material from containers. A base member is attachable to the container, and has an upstanding neck through which extends a dispensing bore. A closure cap is mounted on the neck and is rotatably and axially movable thereon. Movement is accomplished by means of a pair of tabs which are shielded by the base member except when rotated into alignment with a pair of recessed portions in the base member. Only when the tabs are rotatably aligned with the recessed portions can the closure cap be axially moved to uncover a dispensing opening. In a more complex embodiment of the invention, a second rotation of the closure cap is necessary after the axial movement is accomplished in order to uncover the dispensing opening.

Abstract: A safety closure system includes a cap removably mounted on the neck of a container and prevented from undesired opening by means of a locking ring mounted on the container neck and which locking ring has means such as a tooth engaged with complementary locking means such as notches on the cap. The cap and locking ring also contain positioning means to orient the ring with respect to the cap so as to assure proper engagement of the ring locking means with the cap locking means.