A handheld extraction cleaner includes a fluid delivery system and a recovery system including a suction nozzle, a recovery tank, and a suction source. The recovery tank has an auto-close feature that automatically seals an outlet of the tank when the recovery tank is mounted to a tank receiver of the extraction cleaner.

A floor cleaner including a vacuum source recovery tank or collection bin and a body pivotally coupled to a base. The body is pivotable between an upright storage position and an inclined operating position and the body includes a recovery tank recess. The floor cleaner further includes a recovery tank removably coupled to the body in the recovery tank recess, the recovery tank in fluid communication with a vacuum source and a suction inlet, the recovery tank configured to store the cleaning fluid and/or debris drawn through the suction inlet from a surface by the vacuum source. The floor cleaner further includes a projection and a recess that receives the projection when the recovery tank is coupled to the body to limit movement of the body relative to the recovery tank.

A floor cleaner including a recovery tank. The recovery tank includes a tank body having a lower end wall, an open upper end, and a sidewall that extend upwardly from the lower end wall. A cover that includes a suction air outlet in fluid communication with a vacuum source. An inlet duct extends upwardly from the lower end wall. The recover tank includes a shutoff float including a float body and a closure. The float body is configured to float on a surface of cleaning fluid and the closure is received in the suction air outlet to close the suction air outlet. The float body moves along the inlet duct as the float body floats on the surface of the cleaning fluid. The float body includes an aperture extending through the float body and the inlet duct extends through the aperture of the float body.

A modular vacuum system includes a plurality of power heads configured to be removably coupled to a plurality of canisters, each canister having a debris collection chamber of a different capacity, a first power source configured to output a first voltage, and a second power source configured to output the first voltage. A first power head of the plurality of power heads is configured to receive the first power source, and includes a first suction motor rated to operate at a first performance level defined by the first voltage. A second power head of the plurality of power heads is configured to receive the first power source with the second power source, and includes a second suction motor rated to operate at a second performance level greater than the first performance level.

A surface cleaning device includes a body, a suction opening, a suction source, and a separation chamber. The body has a handle and a receptacle. The suction source is at least partially located within the body. The suction source is in fluid communication with the suction opening and is operable to draw a fluid mixture of liquid and air through the suction opening. Liquid is separated from the fluid mixture in the separation chamber. The separation chamber is coupled to the body for rotation relative to the receptacle about a rotational axis. The separation chamber includes an inlet in fluid communication with the suction opening, an outlet in fluid communication with the suction source, and a drainage outlet in fluid communication with the receptacle.

A handheld window cleaning machine includes a shell assembly in which a water-air separation unit is accommodated; a water tank assembly at a bottom of the shell assembly, a wastewater separation unit in the water tank assembly, an outlet of the wastewater separation unit in communication with an inlet of the water-air separation unit; and a suction nozzle assembly pluggably connected to a front end of the shell assembly, an outlet of the suction nozzle assembly in communication with the wastewater separation unit; an air outlet of the water-air separation unit is open outward, and a wastewater backflow opening at a bottom of the water-air separation unit, and the wastewater backflow opening in communication with an inlet of the wastewater separation unit. The cleaning efficiency of the window cleaning machine is ensured, and wastewater is effectively separated from air.

A modular vacuum system includes a first and second canister of different capacities that are configured to store debris. The modular vacuum system also includes first and second power heads that can be coupled to either the first or second canisters. The first and second power heads operate at different voltages that generate a first and second suction airflow. The first and second canisters store debris separated from the first and second suction airflow. The first and second canisters also store debris separated only from the first suction airflow.

An improved shop vacuum with wet/dry capability uses a vacuum tube that terminates in a space between the canister and the vacuum compartment such that the fluid and content exiting the vacuum tube is not directly opposed the negative pressure source. This allows the fluid to drain into the canister in a more controlled and less volatile condition, reducing splashing and entrainment of the fluid. Moreover, a second exit for the vacuum has been added to the canister to improve the efficiency of the vacuum and the overall performance of the device.

A surface-cleaning apparatus (1) includes: a main-body housing (2); a suction motor (6), which is housed in the main-body housing and is driven to recover a cleaning liquid from a surface of a cleaning target; a first tank (3), which houses the cleaning liquid to be supplied to the surface of the cleaning target; and a second tank (4), which houses the cleaning liquid recovered from the surface of the cleaning target. One tank of the first tank and the second tank is connected to an upper portion of the main-body housing. The other tank of the first tank and the second tank is connected to a lower portion of the main-body housing and has a lower surface (4A) that opposes a stationary surface on which the surface-cleaning apparatus is disposed.

The present invention provides an accessory 20 for use with, and adaptable to be releasably connected to, a vacuum cleaner 1. The accessory 20 comprises a vacuum intake head 21 having a chamber 21a arranged such that when the accessory 20 is connected to the vacuum cleaner 1, the chamber 21a is in fluid communication with the vacuum cleaner 1 and adaptable to receive air and liquid from and around the surface to be cleaned. The accessory 20 further comprises a filtration device 40 adaptable to separate the liquid from the air such that substantially no liquid returns to the vacuum cleaner 1. The accessory 20 can be used with both portable and central vacuum cleaners 1.