Patent ID: 6564970
Filing Date: 2003-05-20
Classification: B05C

Abstract:
A disposable self-opener apparatus for opening a tubular bag cartridge and squeezing a pasty composition therefrom, comprising:a conical tube shoulder having an orifice with said conical tube shoulder being made via a plastic molding procedure; a screw cap associated with one end of a tube portion of said conical tube shoulder; a self-opener device screwable with said screw cap for joining said self-opener device with said one end of said tube portion of said conical tube shoulder, said self-opener device having gable-shaped pairs of cutting edges on an inner side with peaks of said gable-shaped pairs of cutting edges pointing in a direction of screwing; and, a retainer basket for receiving a metal clip of a tubular bag cartridge to be opened is centrally located on the inner side of said self-opener device, so that the metal clip does not enter a nozzle attached to the orifice of the conical tube shoulder for dispensing a pasty composition, thereby preventing the metal clip from obstructing a flow of the pasty composition through the nozzle.