Compact air-driven fluid sprayer with replaceable cartridge assembly

A method of replacing a fluid source on a handheld fluid sprayer, the method comprising:

• disengaging a coupling mechanism that retains a first cartridge assembly to a base assembly of the handheld fluid sprayer, wherein:
• the first cartridge assembly comprises:
• a first fluid cartridge;
• and
• a first valve configured to control a flow of fluid to a nozzle, wherein the first valve is actuatable to an open position to allow the flow of fluid to pass through the nozzle;
• and
• the base assembly comprises:
• an air source configured to generate an air flow to the nozzle;
• a power supply configured to power the air source;
• and
• an actuator configured to control the first valve;
• decoupling the first cartridge assembly from the base assembly of the handheld fluid sprayer;
• and
• coupling a second cartridge assembly to the base assembly, wherein the second cartridge assembly comprises:
• a second fluid cartridge;
• and
• a second valve configured to control a flow of fluid to the nozzle, wherein the second valve is actuatable to an open position to allow the flow of fluid to pass through the nozzle.

A handheld fluid sprayer comprising:

• a cartridge assembly comprising:
• a cartridge assembly body having a channel formed therein;
• a cartridge coupled to the cartridge assembly body and configured to house a fluid therein;
• a valve coupled to the cartridge assembly body and configured to control a flow of fluid through the channel to a nozzle;
• and
• a linkage coupled to the valve;
• a base assembly configured to removably receive the cartridge assembly, the base assembly comprising:
• a handle;
• a slot configured to receive the linkage;
• an air source configured to generate an airflow, wherein:
• a first portion of the airflow is provided to the cartridge to pressurize the cartridge, and
• a second portion of the airflow is provided to the nozzle;
• a power supply configured to power the air source;
• and
• an actuator, wherein the linkage is coupled to the actuator and is moveable by the actuator to control a position of the valve.