A pump for removing fluid from a floor covering includes a piston chamber, a piston disposed within the piston chamber, a nozzle plate for pressing against the floor covering and having a plurality of nozzles extending therefrom, a reservoir for storing fluid removed from the floor covering, and a diverting valve having an interior. The diverting valve defines a first fluid flow path, a second fluid flow path, and a third fluid flow path. A method of removing fluid from a floor covering includes causing a piston to move in a first direction within a piston chamber, drawing fluid through a plurality of nozzles of a nozzle plate and into the piston chamber, causing the piston to move in a second direction within the piston chamber, and pushing fluid from the piston chamber and into a reservoir extending circumferentially around the piston chamber.

A shop vac includes a handle, a canister, a vacuum tube, and a pick-up device. The canister holds an enclosure that generates a negative pressure by forcing compressed, high velocity air through a orifice plug and out a muffler to create a vacuum in the enclosure. The vacuum in the enclosure is transferred to the vacuum tube and the pick-up device to pick up liquid or debris on a shop floor. The enclosure inside the canister includes a flow control valve such as a ball in cage device to prevent fluid from entering the enclosure. An evacuation spout is located at the bottom of the canister for draining the vacuum when the canister becomes full.

A base plate for a suction head for vacuum cleaners or a similar electric household appliance is described, said base plate comprising a lower face configured as to be directed towards the surface to be vacuumed, an opposite upper surface and a base plate channel open towards the surface to be vacuumed, wherein the base plate channel comprises a front edge and a rear edge, wherein at least the surface of the lower face which extends along the front edge of the base plate channel and at least the surface of the lower face which extends along the rear edge of the base plate channel lie in a same plane.

A cleaner includes a cleaner body including a main cleaning unit for generating suction force, a nozzle assembly rotatably connected to the cleaner body and including a suction port for sucking in air and dust, and an auxiliary cleaning unit connected to the nozzle assembly and including a cloth supporter to which a cloth is attached. The nozzle assembly includes a front wheel and a rear wheel spaced apart from the front wheel, and a shaft of the rear wheel is relatively movably connected to the nozzle assembly to change a contact area between the cloth and a floor.

An extractor includes a base movable along a surface having an agitator. The extractor also includes a distribution nozzle, a suction nozzle, and a suction source in fluid communication with the suction nozzle and operable to draw fluid and dirt from the surface, a recovery tank in fluid communication with the suction source to receive and store the fluid and dirt drawn, a supply tank supported by the base and in fluid communication with the distribution nozzle to supply cleaning fluid, a pump in fluid communication with the supply tank and the distribution nozzle to deliver fluid from the supply tank to the distribution nozzle, a motor operable to drive the agitator and the pump, and a drive mechanism coupled to the motor, the agitator, and the pump and operable to selectively connect the agitator and the pump to the motor to alternately drive the agitator and the pump.

Aspects of the present invention relate to a triggerless extractor surface cleaning device for cleaning a surface in which a cleaning solution is distributed to the surface and extracted using suction along with dirt and/or debris on the surface in a continuous operation as the extractor moves along the surface. The extractor further comprises an encoder positioned adjacent a wheel of the extractor for detecting a rotational direction and speed of the wheel to generate a signal. Based on receiving the signal, a controller controls operation of a valve to situationally distribute the cleaning solution to the surface depending on a forward rotation of the wheel and independent of user actuation of a trigger positioned on a handle used to propel the extractor along the surface. Distribution of the cleaning solution can be further optimized based on the detected rotational speed of the wheel.

A surface cleaner is provided. The surface cleaner comprises: an operating component configured to perform a function of the surface cleaner; a base moveable along a surface; an accelerometer configured to generate a signal; and a controller in communication with the accelerometer and the operating component, wherein the controller is operable to control the operating component based on the signal, and wherein the operating component is selected from a group consisting of a suction motor operable to generate an airflow, a brushroll motor operable to drive a brushroll, an actuator operable to adjust a height of a brushroll from the surface, a pump operable to deliver a cleaning fluid, an actuator operable to control an airflow or fluid valve, and an indicator operable to indicate a parameter of the surface cleaner.

A cleaning device includes a host, a drag head assembly and a water spray assembly. The host includes a housing, a control device housed in the housing and a handle member fixedly connected to the housing. The housing contains a water inlet pipe for connecting to a water source. The drag head assembly is fixed on the housing and electrically connected to the control device. The control device is used to control the drag head assembly for cleaning operations. The drag head assembly includes a cleaning brush head. The water spray assembly is fixed in the drag head assembly and connected to the end of the water inlet pipe away from the water source. The water spray assembly has evenly set spray holes. The direction of the spray holes is towards the cleaning brush head.

The invention relates to a device for cleaning an optical sensor (2) of an optical detection system of a motor vehicle, which comprises spray means (4) for spraying a cleaning liquid onto an exterior surface (20) of this optical sensor (2). The device comprises suction means (7) of which a chamber (5) opens onto at least a portion of the periphery of this optical sensor (2).

A vacuum accessory tool is provided. The vacuum accessory tool includes a body, a turbine, a generator, and a light source. The body defines a suction inlet, a fluid outlet, and a fluid flow path extending from the suction inlet to the fluid outlet. The turbine is rotatably mounted to the body in fluid communication with the fluid flow path to be rotated by fluid passing through the fluid flow path. The generator is coupled to the turbine such that rotation of the turbine rotates the shaft to generate power. The light source is electrically coupled to the generator and configured to receive the power generated by the generator to power the light source by the fluid passing through the fluid flow path.