초록 ▼

A one-piece dispenser cartridge of the type having an extrusion orifice at one end and open at the other end to receive a movable bottom plug, which is adapted to be displaced inwardly toward said orifice by the plunger of a suitable holder and thus to extrude the contents of the cartridge in select

A one-piece dispenser cartridge of the type having an extrusion orifice at one end and open at the other end to receive a movable bottom plug, which is adapted to be displaced inwardly toward said orifice by the plunger of a suitable holder and thus to extrude the contents of the cartridge in selected quantities, wherein the movable bottom plug is contoured to expel virtually all of the contents and wherein the orifice is sealed with a disc which is pre-scored or pre-cut to form a multi-segmented nozzle when extrusion pressure is exerted thereagainst.

대표청구항 ▼

In a dispensing cartridge assembly that includes a hollow, generally cylindrical cartridge body for holding the product to be discharged, and a plunger unit axially slidably received within the body, the improvement wherein said body includes a first axial length section of substantially uniform ins

In a dispensing cartridge assembly that includes a hollow, generally cylindrical cartridge body for holding the product to be discharged, and a plunger unit axially slidably received within the body, the improvement wherein said body includes a first axial length section of substantially uniform inside diameter terminating at one end of the body, and a second axial length section extending from the first length section to the other end of the body; said second axial length section including a generally cone-shaped neck portion having its minor inner diameter region adjacent said other end and having a central orifice opening in alignment with the axis of the body, said plunger unit comprising a body that includes a cylindrically shaped first portion of substantially axially uniform outside diameter that is substantially equal to said uniform inside diameter, said first portion terminating at one end of the unit, and a generally cone-shaped portion extending from said first portion and terminating at the other end of the unit, and wherein said first axial length section of the cartridge body includes axially spaced, inwardly projecting annular bulges adjacent said one end thereof to engage said first portion of the plunger unit therebetween in snap-fit relation.