Abstract: A sealable edged aperture is produced in a can top by a generally triangular shaped cutting element which severs a flap-like portion from the can top. The cutting element also includes a wedging structure for folding a portion of the severed flap into abutting relationship with the underside of the can top to provide a discrete seal edge on the aperture. The cutting element is carried on a lever arm which is pivotally attached to a manually grippable element positioned adjacent the can sidewall. A bridging element is also provided at the pivot point to support the opener in the can.

Abstract: Closures having a generally triangular shape corresponding to tab opening cans include a seal plug with depending sealing lips and an internal cavity which facilitates installation and provides a sealing force. A resilient spring member may also be imbedded in the closure about the cavity to increase the sealing. The closures are resealable and may be reusable. A pouring or drinking spout and protective lip structure is also disclosed. The closures are opened by means of handles which define the cavity. The handles may include a structure for locking the handle on the rim of the can during dispensing. The closures are suited for use on a wide variety of can aperture sizes.