A hand-held drain cleaning apparatus which includes a control housing comprising an upper body portion and a lower body portion, a release valve member being movable between at least a first position wherein the release valve member prevents fluid from flowing into a first fluid passageway from a second fluid passageway, and a second position wherein fluid can flow from the second fluid passageway and into the first fluid passageway. The hand-held drain cleaning apparatus further includes a flexible, tubular member having first and second end portions, and a terminal discharge member in fluid communication with the second end portion of the tubular member.

An apparatus for fabricating a semiconductor device may include a nozzle having a slit configured to eject solution and an ultraviolet emitter provided outside the nozzle. The ultraviolet emitter and the nozzle may be configured to move horizontally. The slit may be provided on a bottom surface of the nozzle.

An apparatus for fabricating a semiconductor device may include a nozzle having a slit configured to eject solution and an ultraviolet emitter provided outside the nozzle. The ultraviolet emitter and the nozzle may be configured to move horizontally. The slit may be provided on a bottom surface of the nozzle.

An optical device includes an optical window, a gas/liquid supply nozzle that includes an opening from which gas and liquid are jetted and selectively jets the gas and the liquid to wash an effective region of the optical window, a disposition surface on which the optical window and the nozzle are disposed, and a first hydrophobic portion that has a hydrophobic surface property and is formed in a part of a region of the disposition surface present between the effective region and the nozzle and between two tangent lines intersecting with a jet direction of the nozzle and extending to be tangent to the effective region from both ends of the opening in a width direction along the disposition surface.

An optical device includes an optical window, a gas/liquid supply nozzle that includes an opening from which gas and liquid are jetted and selectively jets the gas and the liquid to wash an effective region of the optical window, a disposition surface on which the optical window and the nozzle are disposed, and a first hydrophobic portion that has a hydrophobic surface property and is formed in a part of a region of the disposition surface present between the effective region and the nozzle and between two tangent lines intersecting with a jet direction of the nozzle and extending to be tangent to the effective region from both ends of the opening in a width direction along the disposition surface.

A purging device includes a main body having an inlet disposed at a first end of the main body and an outlet disposed at a second end of the main body. A base is positioned adjacent the first end of the main body, a testing port is disposed along the main body of the purging device, and a control valve is disposed between the inlet of the main body and the outlet of the main body.

A purging device includes a main body having an inlet disposed at a first end of the main body and an outlet disposed at a second end of the main body. A base is positioned adjacent the first end of the main body, a testing port is disposed along the main body of the purging device, and a control valve is disposed between the inlet of the main body and the outlet of the main body.

The disclosure relates to a method for operating a cleaning system for cleaning a sensor surface of a sensor of a vehicle, in particular an optical sensor, having the step: applying an amount of compressed air to the sensor surface in an air cleaning step characterized by: checking an air cleaning result in a checking step; in the event of a negative air cleaning result, performing a hybrid cleaning step including: applying an amount of cleaning fluid to the sensor surface in a fluid, in particular liquid, cleaning step; and/or, applying an amount of compressed air to the sensor surface in a further air cleaning step.

A dental pod that includes a receiver in a form of a cavity for receiving a distal end of a dental handheld device and one or more nozzles on a side of the receiver for cleaning and disinfecting the distal end of the dental handheld device. It also includes a cartridge compartment for receiving one or more cartridges support cleaning, setup, maintenance and other operations of and on the dental handheld device.

A dental pod that includes a receiver in a form of a cavity for receiving a distal end of a dental handheld device and one or more nozzles on a side of the receiver for cleaning and disinfecting the distal end of the dental handheld device. It also includes a cartridge compartment for receiving one or more cartridges support cleaning, setup, maintenance and other operations of and on the dental handheld device.