A modular power washer contains a power washing system (10), containing a base unit (20) and an accessory unit (34), wherein the accessory unit (34) is removably-attached to the base unit (20). The base unit (20), contains a housing (22), a pump (26), a motor (24), a power source (28), an input valve (64), and an output valve (32). The housing (22), contains the pump (26), and the motor (24), therein, and the housing (22), at least partially contains the power source (28), therein. The motor (24), is operatively-connected to the power source (28). The pump (26), is operatively-connected to the motor (24). The pump (26), is fluidly-connected to the input valve (64), and the output valve (32). The accessory unit (34), is selected from a hose storage unit (68), an additive tank (88), a handle (36) a roll bar (50), a frame (72), a wheel (74), and a combination thereof. A kit and a method of use are also described herein.

A wand apparatus for controlling a pressure washing system and an associated method for controlling a pressure washing system is provided. The wand apparatus may include a first wand portion and a second wand portion. The wand apparatus may further include a chemical control assembly that includes a housing and a chemical control element. The housing defines an outlet aperture, an inlet aperture, and a chemical control aperture. The chemical control aperture is configured to operably engage the chemical control element. The outlet aperture is configured to operably engage the first wand portion, and the inlet aperture is configured to operably engage the second wand portion. Further, operable engagement of the chemical control element may provide for switching the wand apparatus between a chemical spray configuration and a wash spray configuration.

A cleaning apparatus comprising a first fluid delivery system configured to eject a first fluid through a first nozzle toward a surface to be cleaned; a second fluid delivery system configures to eject a second fluid through a second nozzle toward the surface to be cleaned, wherein the second fluid comprises a compressed gas at a pressure greater than 345 kilopascals (50 pounds per square inch); a housing configured to partially surround and mount the first and second nozzles; a connector configured to couple the first fluid delivery system to a first fluid source; and a connector configured to couple the second fluid delivery system to a second fluid source.

An electric power washer (10) contains a main body (12), a hose (18), a handle (24), and a control circuit (32).The main body (12) contains a pump (14) and an electric power source operatively-connected to the pump (14). The hose (18) contains a first end (20) that is fluidly-connected to the pump and a second end (22) fluidly-connected to the handle (24). The handle (24) has a button (26) operatively-connected to the control circuit (32). The control circuit(32) is operatively-connected to both the pump(14) and the electric source(16,16,40). The control circuit (32) controls the output of the pump (14). The control circuit (32) contains a timer (36) as well. The control circuit (32) permits the pump (14) to normally operate at up to 100% normal power. However, when the button (26) is activated, the control circuit (32) permits the pump (14) to operate at a boost power mode of from about 103% normal power to about 300% normal power. The control circuit (32) intermittently pulses the boost power mode. The control circuit (32) terminates the boost power mode after a predetermined period of time or when the button (26) is no longer activated whichever is shorter. A method of boosting the power of a pump on a power washer is also described. The electric power washer allows the user greater control, and also reduces the change of damage to the battery, the pump, and/or the internal mechanisms of the power washer.

The present invention relates to a handheld high-pressure cleaning machine, including: a main machine housing, allowing detachable attachment of a battery pack, where the main machine housing includes a main body portion; a liquid outlet; a first handle; a motor; and a pump, where a battery pack mounting portion includes a first battery pack mounting portion and a second battery pack mounting portion, and the battery pack includes a first battery pack and a second battery pack; and the first battery pack mounting portion and the second battery pack mounting portion are respectively disposed on left and right sides of a middle plane in a manner that a distance W2 between a leftmost edge of the first battery pack mounting portion and a rightmost edge of the second battery pack mounting portion is not greater than a width W1 of the main body portion.

A substrate processing apparatus includes a substrate processing part 3 and a washing unit 40. The washing unit 40 includes a main body 43 having a liquid supplying port 41 and a liquid jetting port 42, a flow channel 44 formed between the liquid supplying port 41 and the liquid jetting port 42, and a valve 45 provided in the flow channel 44. In the washing unit 40, when the valve 45 is opened, the flow channel 44 is opened, thereby causing the liquid jetting port 42 to jet liquid, and when the valve 45 is closed, the flow channel 44 is closed, thereby causing the liquid jetting port 42 to stop jetting liquid. The flow channel 44 is provided with a water-hammer reducing mechanism 48 that operates to reduce damage to the flow channel 44 caused by a water hammer phenomenon when the valve 45 is closed.

A pneumatic cleaning gun (10) according to the present invention comprises a gun housing (100) with a compressed air connection, a liquid nozzle (130) with a nozzle cover (200), and an air intake tube (300) which leads into the covered flow channel (221A) and can also be connected to a suction device via a suction hose (30) in order to suction dirt particles through the flow channel (221A). Depending on the use of the cleaning gun (10), the suction hose (30) may interfere with work if the suction hose hinders the intended cleaning work. This disadvantage is eliminated by the invention by the fact that the cleaning gun (10) is improved such that the air intake tube (300) is not rigidly but pivotably mounted on the cleaning gun (10). The air intake tube (300) can therefore be mounted in a plurality of different positions of use such that the user can find the most comfortable or convenient position of use and the air intake tube (300) can be correspondingly adjusted.

A pressure washer gun is provided including a safety locking feature that may inhibit unintentional actuation. In an embodiment, the pressure washer gun may include a body portion, and a hand grip portion extending from the body portion. A trigger may be disposed adjacent to the hand grip portion and coupled with a flow control valve for controlling the flow of high pressure fluid through the pressure washer gun. A safety lock may be pivotally coupled with the hand grip portion for movement between a locked position inhibiting movement of the trigger to open the flow control valve, and an unlocked position allowing movement of the trigger to open the flow control valve, the safety lock being biased toward the locked position.

A pressure washer and a method for recognizing a spray boom of the pressure washer. The pressure washer includes a housing, including a pump with a motor; a spray boom with a trigger member; and a control part, for recognizing the spray boom connected to the housing, and performing on and off control based on a recognition result or controlling the housing to convey a water flow of a corresponding pressure to the outside based on a recognition result. The pressure washer may be installed with spray booms of different models, so as to expand an applicable range of the pressure washer and improve flexibility of the pressure washer without changing the housing. Moreover, on and off control can be performed according to the recognition result, so as to prevent the housing from being started when no port accessory is mounted.

A modular power washer contains a power washing system (10), containing a base unit (20) and an accessory unit (34), wherein the accessory unit (34) is removably-attached to the base unit (20). The base unit (20), contains a housing (22), a pump (26), a motor (24), a power source (28), an input valve (64), and an output valve (32). The housing (22), contains the pump (26), and the motor (24), therein, and the housing (22), at least partially contains the power source (28), therein. The motor (24), is operatively-connected to the power source (28). The pump (26), is operatively-connected to the motor (24). The pump (26), is fluidly-connected to the input valve (64), and the output valve (32). The accessory unit (34), is selected from a hose storage unit (68), an additive tank (88), a handle (36) a roll bar (50), a frame (72), a wheel (74), and a combination thereof. A kit and a method of use are also described herein.