Abstract: A folding can opener and an improved method for opening cans are provided. The can opener includes a handle; a cutter pivotably mounted to the handle; and a locking mechanism for the cutter. The cutter can be locked in an operating position in which a pointed tip of the cutter is adapted to pierce the can. The cutter can also be locked in a storage position in which the pointed tip is folded towards the handle and shielded by the handle. The locking mechanism includes a barrel cam formed on the cutter and having a lug for engaging a seam of the can and pairs of indentations having camming edges. The indentations are adapted for mating engagement with pawls formed on the handle (or separate pins placed between the handle and cutter). The handle is formed in a wish bone shape which permits the pawls to flex to allow engagement and disengagement of the pawls with the indentations.

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: An ash receiver device removably mountable on a used beverage can to provide an ashtray. The ash receiver device includes a central punch portion that is in part extendable into an off center hole normally provided in the can to dispense beverage therefrom, and in being forced downwardly shears or cuts an enlarged central opening in the can top. A frusto conical portion is joined to the punch portion for directing ashes into the punch portion bore, the frusto conical portion being joined to a can mounting and guide portion that aids in properly positioning the punch portion and prevent tipping of the can as a hole is being punched.