Patent ID: 7930832

Claim:
A device for unrolling a rim of a container comprising: a first structure with an inside surface a first end and a second end, including a pair of spaced apart cutting blades projecting from the inside surface positioned proximate to the first end of the first structure, and configured and dimensioned for defining a portion of a rim of a container between the cutting blades to be notched, a contact region between an end of each of the cutting blades proximate the first end, and the first end of the first structure, and extending at least a portion of the distance between the cutting blades, and a pulling portion at a back end of the contact region between the cutting blades configured and dimensioned for contacting the underside of the portion of the rim; and a second structure with a first end and a second end attached to or at least partially integral with the first structure, the second structure including concealing walls outside of the spaced as art cutting blades configured, positioned and dimensioned for concealing the cutting blades; wherein the first structure and the second structure are attached or integrated proximate the second end of the first structure and the second end of the second structure, the first structure and the second structure being attached or integrated with a degree of flexibility so as to define a closed position in which the cutting blades are concealed by the concealing walls of the second structure and the contact region of the first structure, and an open position when a rim of a container is inserted between the first structure and the second structure; and wherein the cutting blades are slidably accessible when the device is in the open position by insertion of the device over a rim of a container via a juncture of the first end of the first structure and the first end of the second structure.