This invention relates to an automatic vehicle wash apparatus employing one or more rotary cloth or foam rubber brushes, and more particularly to the way how the rotary brush to vehicle surface contact is managed using one or more encoders connected to the rotating shaft of each brush and one or more programmable logic controllers (PLC). The encoders, recording the revolutions per minute (RPM) of each brush shaft, provide input to the programmable logic controller. If the RPM value is at or above the high RPM limit, the pivoted boom will move the brush toward the vehicle to achieve a desired brush-to-washable surface contact. If, on the other hand, the RPM value is at or below the low RPM limit, the pivoted boom will move the brush away from the vehicle to achieve a desired brush-to-washable surface contact.

This invention relates to an automatic vehicle wash apparatus employing one or more rotary cloth or foam rubber brushes, and more particularly to the way how the rotary brush to vehicle surface contact is managed using one or more encoders connected to the rotating shaft of each brush and one or more programmable logic controllers (PLC). The encoders, recording the revolutions per minute (RPM) of each brush shaft, provide input to the programmable logic controller. If the RPM value is at or above the high RPM limit, the pivoted boom will move the brush toward the vehicle to achieve a desired brush-to-washable surface contact. If, on the other hand, the RPM value is at or below the low RPM limit, the pivoted boom will move the brush away from the vehicle to achieve a desired brush-to-washable surface contact.

A vacuum cleaner is disclosed. The vacuum cleaner according to the present disclosure includes a main body and a suction nozzle. The suction nozzle includes a housing, a driver, a rotating brush, and a detachable cover. A pressing button is mounted in the housing. The detachable cover is rotated about the rotational axis of the rotating brush to be mounted in the housing. The pressing button selectively blocks rotation of the detachable cover.

A vacuum cleaner is disclosed. The vacuum cleaner according to the present disclosure includes a main body and a suction nozzle. The suction nozzle includes a housing, a driver, a rotating brush, and a detachable cover. A pressing button is mounted in the housing. The detachable cover is rotated about the rotational axis of the rotating brush to be mounted in the housing. The pressing button selectively blocks rotation of the detachable cover.

A vacuum cleaner is disclosed. The vacuum cleaner according to the present disclosure includes a main body and a suction nozzle. The suction nozzle includes a main housing and a driver. The driver includes a motor and a transmission. The motor is provided behind a rotating brush. The transmission transfers rotational motion of the motor to the rotating brush.

A vacuum cleaner is disclosed. The vacuum cleaner according to the present disclosure includes a main body and a suction nozzle. The suction nozzle includes a main housing and a driver. The driver includes a motor and a transmission. The motor is provided behind a rotating brush. The transmission transfers rotational motion of the motor to the rotating brush.

A grill cleaner apparatus for cleaning a grill using rotary power from an external source such as a hand drill, having a drive shaft and cleaning wheels such as wire brush wheels, with two cleaning wheels rotating perpendicular to the drive shaft and cleaning grill bars and additionally propelling the grill cleaner forward.

A toilet bowl cleaning device including a toilet bowl lid housing a motor and a plurality of releasably secured scrub brushes, each attached to an interior face of the toilet bowl lid by connection rod and by a detachable and rotatable connection piece. The motor rotates the scrub brush, and the scrub brush scrubs an interior of the toilet bowl.

A toilet bowl cleaning device including a toilet bowl lid housing a motor and a plurality of releasably secured scrub brushes, each attached to an interior face of the toilet bowl lid by connection rod and by a detachable and rotatable connection piece. The motor rotates the scrub brush, and the scrub brush scrubs an interior of the toilet bowl.

A cleaner head for a vacuum cleaning appliance, the cleaner head including a main body supporting an agitator. The agitator includes a rotatable cylindrical body that bears an elongate agitator formation for engaging a floor surface as the cylindrical body rotates. The elongate agitator formation includes a first agitator row extending around the cylindrical body from a respective first edge L of the cylindrical body towards its centre C in a first helical direction and a second agitator row extending around the cylindrical body from a respective second edge R of the cylindrical body towards its centre C in a second helical direction that is counter to the first helical direction, wherein the first agitator row includes agitators of a first material and wherein the second agitator row includes agitators of a second material that is different to the first material.