A method for cleaning a molding surface (51) of a reusable lens mold (5), in particular of a reusable lens mold (5) for molding ophthalmic lenses such as soft contact lenses, comprising the steps of: generating a jet (3) of deionized water, exposing the molding surface (51) of the reusable lens mold (5) to the jet (3) of deionized water,
wherein the jet (3) of deionized water has a circular full cone spray pattern and impinges on the molding surface (51) of the reusable lens mold (5), and wherein the circular full cone spray pattern has a uniform distribution of the volume flow of deionized water over the base of the cone of the circular full cone spray pattern.

The present invention generally relates to a method of reducing contamination from plastics. The resulting purer plastic can be used in demanding applications.

A method of cleaning a semiconductor wafer includes: loading a semiconductor wafer into a cell having an annular trough; moving a plurality of nozzles into operational orientations for spraying a cleaning solution onto a top surface of the loaded semiconductor wafer; spraying the cleaning solution from each nozzle onto the top surface of the loaded semiconductor wafer in a direction defined by each nozzle's operational orientation such that a patterned flow of cleaning solution is formed on the top surface of the loaded semiconductor wafer; and collecting the cleaning solution in the annular trough of the cell as it flows off the top surface of the loaded semiconductor wafer.

A cavity cleaning and coating system for safely and efficiently cleaning and coating the interior of a cavity without requiring entry of any workers. The cavity cleaning and coating system generally includes a mount which is coupled with a movable arm of a vehicle. The mount includes an inner plate, which is coupled to the arm, and an outer plate. A shaft is coupled to the outer plate. The mount is adjustable independently of the arm of the vehicle, including outwardly, inwardly, and rotatably. A spray head is connected to the shaft. The spray head is rotatable and includes a dispenser for dispensing fluids. The vehicle is positioned near a cavity to be treated. The mount is adjusted for optimal positioning of the spray head. The spray head is lowered into the cavity to dispense a cleaning fluid and, after the cleaning fluid has dried, a coating fluid.

The present invention provides a method for cleaning substrates comprising the steps of: placing a substrate on a substrate holder; implementing a bubble less or bubble-free pre-wetting process for the substrate; and implementing an ultra/mega sonic cleaning process for cleaning the substrate.

A method for cleaning semiconductor wafer includes putting at least one wafer on a cassette bracket in a first cleaning tank filled with chemical solution; after said wafers have been processed in the first cleaning tank, transferring the wafers from the first cleaning tank to a second cleaning tank with the wafers immersing in the chemical solution; and after said wafers have been processed in the second cleaning tank, taking the wafers out of the second cleaning tank.

A cleaning tool is adapted for cleaning a camera lens or sensor of a vehicle comprising a surface being subject to weather conditions in which coarse matter adheres to the surface. The cleaning tool comprises a body comprising a container for containing a cleaning solution, a delivery nozzle fluidly connected to the container, and a trigger for forcing the cleaning solution through the delivery nozzle to be sprayed over the surface of the sensor. The cleaning tool further comprises a blade extending from the body, the blade comprising an operating edge for sliding against the surface to remove the coarse matter from the surface, and a swabbing component housed by the body, the swabbing component being made from microfiber, chamois or an alternative type of cleaning cloth material and being adapted for polishing the surface.

Disclosed is a wheel cleaning device, comprising a frame, a waste water recovery tank, lifting guide posts, a feeding support plate, a lifting cylinder, a lifting platform, a support plate, an adjusting cylinder, a left slide plate, bolt hole cleaning spray pipes, clamping cylinders, a left clamping slide plate, a central cleaning spray pipe, clamping wheels, left spray pipes, left upper spray pipes, right upper spray pipes, right spray pipes, shafts, a right clamping slide plate, servo motors, clamping guide rails, clamping system support plates, a support, a right slide plate, a gear rack structure and a guide rail. The device can clean aluminum scraps remaining in bolt holes, flange drainage channels and weight reduction pits, meets the requirements of automatic production lines, and has the characteristics of compact structure, flexibility, practicability, stability, high efficiency and the like.

A method for cleaning a molding surface (51) of a reusable lens mold (5), in particular of a reusable lens mold (5) for molding ophthalmic lenses such as soft contact lenses, comprising the steps of: generating a jet (3) of deionized water, exposing the molding surface (51) of the reusable lens mold (5) to the jet (3) of deionized water,

wherein the jet (3) of deionized water has a circular full cone spray pattern and impinges on the molding surface (51) of the reusable lens mold (5), and wherein the circular full cone spray pattern has a uniform distribution of the volume flow of deionized water over the base of the cone of the circular full cone spray pattern.

The present invention generally relates to a method of reducing contamination from plastics. The resulting purer plastic can be used in demanding applications.