Patent ID: 6464112
Filing Date: 2002-10-15
Classification: B05C,B65B,B65D

Abstract:
A cartridge for use with a conventional caulking gun, the cartridge comprising:a substantially rigid cartridge body; the substantially rigid cartridge body comprises a cartridge nozzle end, a cartridge plunger end, and a cartridge nozzle end edge; the cartridge nozzle end edge defines a nozzle end opening; at least one collapsible package; each of the at least one collapsible package comprises a package nozzle end, a package plunger end, a package nozzle end edge, and a package inside space; the package nozzle end edge defines a package opening; at least one package retaining collar; the at least one package retaining collar comprises at least one outside perimeter edge and at least one inside perimeter edge; the at least one inside perimeter edge defines at least one collar passageway; the at least one collapsible package is disposed at least partially within the substantially rigid cartridge body such that the package plunger end is disposed towards the cartridge plunger end and the package opening is disposed towards the nozzle end opening and the nozzle end opening is sufficiently hermetically sealed to allow drawing a vacuum; at least one seal; and the at least one package retaining collar disposed at least partially within the package opening, such that the at least one seal comprises a coupling between the at least one outer perimeter edge and the package nozzle end edge, wherein the package inside space is in fluid communication with the nozzle end opening.