An ultrasonic cleaner includes: a cleaning tank; an ultrasonic transducer; a vibration head which extends from the ultrasonic transducer toward the cleaning tank and of which a tip portion includes a cylindrical hole having a longitudinal direction aligned to a vertical direction; and an air layer or a metallic member that is provided in an area formed by projecting at least the vibration head in the vertical direction under the cleaning tank, wherein the ultrasonic transducer is driven at a frequency at which the vibration head is vibrated resonantly in a vibration mode accompanied by a deformation in the longitudinal direction of the cylindrical hole and a direction perpendicular to the longitudinal direction, wherein an area formed by projecting at least the vibration head in the vertical direction in a bottom portion of the cleaning tank is formed of a material mainly including resin.

The invention relates to a treatment system for treating workpieces, in particular for cleaning and/or deburring, comprising at least one treatment device that has at least one treatment unit, which is configured to perform at least one treatment operation on the workpiece, as well as at least one receiving unit for accommodating the workpiece on or in the treatment device, a transport device that comprises at least one transport unit, with which the workpiece is transferable into a transfer position, from which the workpiece is transferable by means of the at least one receiving unit into a treatment position, as well as a control device for controlling the at least one treatment unit, the at least one receiving unit, and the at least one transport unit, wherein the at least one treatment device comprises two or more receiving units for accommodating a respective workpiece for transferring independently of one another into the treatment position, and wherein the control device controls the at least one treatment unit such that the workpieces are treated by said treatment unit in a time-offset manner according to a treatment operation of the same kind. The invention also relates to a method.

A carbide blade cleaning device includes a water pressure cleaning device, an ultrasonic cleaning device and an air drying device. The water pressure cleaning device includes a cleaning chamber for accommodating a cutter head and a water jet mechanism with an output end facing the cutter head. The ultrasonic cleaning device includes a cleaning box and a cutter head fixing box with an opening in a side surface for accommodating the cutter head, and a first telescopic mechanism drives the cutter head fixing box to adjust a relative position to the cleaning box. The air drying device includes a cutter head fixing table and an air drying mechanism with an output end facing the cutter head fixing table.

A method of cleaning plugged or dirty porous metallic filter elements to regain filter activity, comprising the steps of: steaming a filter element for a first period of time; submerging the filter element in a first solution; and exposing the first solution to ultrasound waves for a second period of time.

A piezoelectric element having an improved piezoelectric constant is provided, and a liquid discharge head, an ultrasonic motor, and a dust removing device, each of which uses the above piezoelectric element, are also provided. A piezoelectric element at least includes a pair of electrodes and a piezoelectric material provided in contact with the pair of electrodes, the piezoelectric material is formed of an aggregate of crystal grains containing barium titanate as a primary component, and among the crystal grains of the aggregate, crystal grains at least in contact with the electrodes have dislocation layers in the grains. A liquid discharge head, an ultrasonic motor, and a dust removing device each use the above piezoelectric element.

An apparatus for cleaning a surface includes a body defining a cavity and terminating in a distal end that is adapted, in use, to be in the vicinity of a surface to be cleaned such that the surface forms an end wall of a chamber including the cavity; at least one cleaning liquid inlet for flow of a cleaning liquid into the chamber; a divider located in or at the end of the cavity that divides the chamber into first and second portions, the second portion, in use, being in fluid communication with the surface to be cleaned; and an acoustic transducer associated with the first portion to introduce acoustic energy into the chamber; wherein the divider is adapted to permit the passage of acoustic energy therethrough from the first portion to the second portion of the chamber to thereby allow pressure fluctuations to be generated at the surface.

A sensor system includes: a housing having an internal wall defining an opening; a transparent window mounted within the opening; a sensor device within the housing and having at least one of a sensor output or a sensor input alignable with the transparent window; a vibration device in communication with the transparent window, where the vibration device is controllable to produce a first sonic movement; where the transparent window is movably responsive to the first sonic movement with a second sonic movement; and at least one damping member located between the transparent window and the sensor device, where the damping member substantially isolates the sensor device from at least the second sonic movement of the transparent window. A method includes determining a cleaning trigger corresponding to cleaning the transparent window; and controlling, in response to the cleaning trigger, a vibration frequency, amplitude, or duration of the vibration device.

A cleaning method includes controlling an unmanned aerial vehicle (UAV) to fly to a region of a wall body according to a path to be cleaned, and, in response to detecting a cleaning prohibition identifier associated with the region, recognizing the region as a cleaning prohibition region and controlling the UAV to fly over the cleaning prohibition region without cleaning the cleaning prohibition region.

There is disclosed an ultrasonic cleaning bar for cleaning a roller of a printing machine. The ultrasonic cleaning bar comprises: an elongate body defining a longitudinal axis; a doctor blade supported by the body; an ultrasonic transducer for generating ultrasonic waves within the cleaning fluid; and first and second formations positioned at longitudinally opposite ends of the body, the first formation being releasably engageable with a first mounting bracket of the printing machine and the second formation being releasably engageable with a second mounting bracket of the printing machine; and wherein, when the first and second formations are engaged with the first and second brackets, the doctor blade engages a surface of the roller, such that the body, the doctor blade and the roller define a trough therebetween configured to contain a cleaning fluid which contacts the roller.

A substrate processing apparatus includes a process module including a substrate support unit, an inverting unit and a processing unit, and a transfer module, wherein the inverting unit inverts a substrate so that a second surface faces upward, and provides the inverted substrate to the substrate support unit, wherein the processing unit performs a first processing on the second surface of the substrate seated on the substrate support unit, wherein the inverting unit inverts the first processed substrate so that the first surface faces upward, wherein the transfer module takes the substrate with a first surface facing upward out of the process module, and introduces again the substrate with a first surface facing upward into the process module to seat it on the substrate support unit, wherein the processing unit performs a second processing on the first surface of the substrate seated on the substrate support unit.