Replaceable Cartridge Dispenser Assembly

A replaceable cartridge dispenser assembly for use in connection with a fluid dispensing device comprising a housing having a wall defining an interior compartment, the wall having an opening passing therethrough from an exterior of the housing into the interior compartment, the housing also having an exit port located therein or thereon, said replaceable cartridge dispenser assembly comprising:

• a fluid reservoir containing a fluid;
• and
• a metered dispensing pump integrally formed into a wall of said fluid reservoir, said metered dispensing pump in fluid communication with said fluid reservoir and with the exit port of said housing and comprising a button, actuation of which causes metered dispensing of the fluid within said fluid reservoir to the exit port of said housing;
• wherein said button is accessible through the opening in the wall of said housing;
• and
• wherein said cartridge assembly, including said fluid reservoir and said metered dispensing pump, is replaceable as a unit such that said housing is reusable.

A fluid dispensing device comprising:

• a housing having a wall defining an interior compartment, the wall of said housing having an opening passing therethrough from an exterior of said housing into the interior compartment, said housing also having an exit port located therein or thereon;
• and
• a replaceable cartridge dispenser assembly disposed within the interior compartment of said housing, said replaceable cartridge dispenser assembly comprising:
• a fluid reservoir containing a fluid, at least a portion of said fluid reservoir being flexible such that said fluid reservoir decreases in size as the fluid is withdrawn therefrom;
• and
• a metered dispensing pump integrally formed with said fluid reservoir, said metered dispensing pump in fluid communication with said fluid reservoir and with the exit port of said housing and comprising a flexible button at least partially defining a metering chamber in fluid communication with said fluid reservoir and with the exit port of said housing, actuation of said flexible button causing metered dispensing of the fluid within said fluid reservoir to the exit port of said housing;
• an output one-way valve disposed in fluid communication between the metering chamber and the exit port of said housing and permitting unidirectional flow of the fluid from the metering chamber to the exit port of said housing when said flexible button is pressed by the user;
• an intake one-way valve disposed in fluid communication between the metering chamber and said fluid reservoir and permitting unidirectional flow of fluid from said fluid reservoir into the metering chamber thereby filling the metering chamber when said flexible button is released by the user;
• wherein said button is accessible through the opening in the wall of said housing;
• and
• wherein said cartridge assembly, including said fluid reservoir, said metered dispensing pump, said output one-way valve and said intake one-way valve, is replaceable as a unit such that said housing is reusable.