Septum seal plug used in inkjet cartridge

A cartridge for dispensing ink in association with an output recordation device, said cartridge comprising:

• a housing having a cavity therein for storing a quantity of ink and a dispensing port communicating with said cavity through said housing, said housing having a vacuum port extending therethrough for selectively placing said cavity in fluid communication with ambient;
• and
• a self-sealing plug received in said vacuum port and forming a fluid-tight seal therein, said plug being self-sealing such that upon the removal of an instrument that has pierced said seal to selectively permit the transmission of fluid therethrough said plug re-forms a fluid-tight seal in said vacuum port;
• wherein said plug has a first portion having a first cross-sectional area being greater than a cross-sectional area of said vacuum port, said first portion of said plug is compressively positioned within said vacuum port of said cover, and said plug includes a second portion having a second cross-sectional area of said plug, and said second cross-sectional area of said plug is substantially greater than said first cross-sectional area of said plug;
• and said plug includes a third portion extending from said first portion opposite said second portion, said third portion having a third cross-sectional area, and said third cross-sectional area being greater than said first cross-sectional area.

A cartridge for dispensing ink in association with an output recordation device, said cartridge comprising:

• a housing having a cavity therein for storing a quantity of ink and a dispensing port communicating with said cavity through said housing, said housing having a vacuum port extending therethrough for selectively placing said cavity in fluid communication with ambient;
• and
• a self-sealing plug received in said vacuum port and forming a fluid-tight seal therein, said plug being self-sealing such that upon the removal of an instrument that has pierced said seal to selectively permit the transmission of fluid therethrough said plug re-forms a fluid-tight seal in said vacuum port;
• wherein said plug has a first portion having a first cross-sectional area being greater than a cross-sectional area of said vacuum port, said first portion of said plug is compressively positioned within said vacuum port of said cover, and said plug includes a second portion having a second cross-sectional area of said plug, and said second cross-sectional area of said plug is substantially greater than said first cross-sectional area of said plug;
• and said first portion of said plug has a frustoconical surface having a base end cross-sectional area and a distal end cross-sectional area, said base end cross-sectional area being greater than said cross-sectional area of said vacuum port.

A cartridge for dispensing ink in association with an output recordation device, said cartridge comprising:

• a housing having a cavity therein for storing a quantity of ink and a dispensing port communicating with said cavity through said housing, said housing having a vacuum port extending therethrough for selectively placing said cavity in fluid communication with ambient;
• and
• a self-sealing plug received in said vacuum port and forming a fluid-tight seal therein, said plug being self-sealing such that upon the removal of an instrument that has pierced said seal to selectively permit the transmission of fluid therethrough said plug re-forms a fluid-tight seal in said vacuum port;
• wherein said plug has a first portion having a first cross-sectional area being greater than a cross-sectional area of said vacuum port, said first portion of said plug is compressively positioned within said vacuum port of said cover, and said plug includes a second portion having a second cross-sectional area of said plug, and said second cross-sectional area of said plug is substantially greater than said first cross-sectional area of said plug;
• and said first portion of said plug has a frustoconical surface having a base end cross-sectional area and a distal end cross-sectional area, said base end cross-sectional area being greater than said cross-sectional area of said vacuum port.

A self-sealing plug for use in association with a cartridge for dispensing ink, said plug comprising:

• a first body portion extending in a longitudinal direction between a base end and a distal end, and being laterally defined by a first outside peripheral wall;
• a second body portion extending longitudinally from said distal end of said first body portion, said second body portion being laterally defined by a second outside peripheral wall, said second outside peripheral wall having a greater length than said first outside peripheral wall;
• and;
• a third body portion extending longitudinally from said base end of said first body portion, said third body portion being laterally defined by a third outside peripheral wall, and said third outside peripheral wall having a greater length than said first outside peripheral wall.