Abstract: A closing and opening device for a bottle with an opening sealed by a membrane comprises a cap adapted to engage the opening of the bottle for closing the same, a cutting device for cutting the membrane of the bottle connected to the cap, and a device to allow rotation of the cap less than 360 degrees relative to the opening of the bottle while the cutting device is in engagement with the membrane, so that the membrane is cut less than 360 degrees to prevent the membrane being cut from detaching from the bottle.

Abstract: A tamper indicating cover seals the closure end of a capped container. The cover is secured to the container by means of a safety band secured within an annular indent in the container. The safety band has visual indicia different from the remainder of the cover so that when a pull tab on the safety band is pulled, the indicia-containing safety band is removed. As the safety band is removed, the remainder of the plastic cover is torn as a result of a helical tear line which may be a stress pattern or a thread embedded in or disposed underneath the plastic cover. The cover is secured to the container by heat fusing or other means between the safety band and the indent of the container.

Abstract: A tamper indicating cover seals the closure end of a capped container. The cover is secured to the container by means of a safety band secured within an annular indent in the container. The safety band has visual indicia different from the remainder of the cover so that when a pull tab on the safety band is pulled, the indicia-containing safety band is removed. As the safety band is removed, the remainder of the plastic cover is torn as a result of a helical tear line which may be a stress pattern or a thread embedded in or disposed underneath the plastic cover. The cover is secured to the container by heat fusing or other means between the safety band and the indent of the container.

Abstract: An improvement in a closure system for containers in which a cap member sealed at its base to an annular flange about the neck of the container is removeable by a cutting ring. The cap includes an upwardly projecting brim at the base separated from the side wall of the cap to provide an annular groove. The groove has at least one tapered recess. The cutting ring which can be positioned around the side wall of the cap has at least one depending tab with an inwardly directed sharpened projection. Normally, the tab rests in the recess of the groove. Upon rotation of the cutting ring, the tab is forced inwardly causing the sharpened projection to sever the side wall of the closure.

Abstract: A seal for the closure of packages includes a tear string or tab dimensioned or located and secured thereon so as to selectively open desired sections of the seal.

Abstract: A security closure for a container, comprises a capsule, and a stopper including a tearstrip having a free end which in use passes through an opening in the capsule, the opening having a width greater than its height. The capsule has two lines of weakness which are aligned with the longitudinal edges of the tearstrip.

Abstract: A tamper-proof, one-piece device for securement to a receptacle for a fluent substance, the device including a membrane to seal the contents of the receptacle prior to initial use but which is rupturable through the medium of a piercing point to enable pouring of the contents. The membrane-puncturing element serves as a stopper to inhibit leakage and evaporation during periods of non-use.