Title: Cartridge-type dispenser

• Summary
• Claims
• Description
• View all

Abstract: A disposable container comprising a filled, temporarily sealed cartridge for use in a caulking gun-like apparatus for repeated discharge of incremental amounts of the contents thereof of mayonnaise-like consistency. The cartridge includes a generally cylindrical tubular body having an inwardly rolled rim at one end thereof with a generally circular disc disposed within the body and adhesively sealed in abutment with the rim. A plurality of mutually intersecting slits through the disc form a resilient, pressure-responsive valve and orifice in the center portion of the disc. A plug top closure is at least partially disposed in the open opposite end of the tubular body and is provided with a cylindrical sidewall sized to be closely received within the tubular body, at least one circumferential rib on the cylindrical sidewall for tightly and slidingly engaging the tubular body, and a radially outwardly extending closure flange for yieldably abuttingly engaging the annular end face of the tubular body. Alternate forms of generally circular discs as well as a method of assembling such a cartridge are also disclosed.


Do you think this is a good invention? Vote now: