A method for inspecting a nozzle includes producing a jet from the nozzle, moving the nozzle to cause the jet to approach a stylus of a touch probe, generating a contact signal under a force acting on the stylus, and determining that the jet is appropriate in response to a contact signal received first after the jet has an axis at a distance from the stylus that is equal to or less than a first normal distance calculated from a normal jet shape.

A method for inspecting a nozzle includes producing a jet from the nozzle, moving the nozzle to cause the jet to approach a stylus of a touch probe, generating a contact signal under a force acting on the stylus, and determining that the jet is appropriate in response to a contact signal received first after the jet has an axis at a distance from the stylus that is equal to or less than a first normal distance calculated from a normal jet shape.

An apparatus for performing liquid treatment for a substrate is provided. The apparatus for performing the liquid treatment for the substrate may include a housing having a treatment space, a substrate support unit to support and rotate the substrate in the treatment space, a liquid feeding unit including a nozzle device including a central exhaust port and multiple first outer exhaust ports, which are provided in a shape of a ring to form a concentric circle with the central exhaust port to feed mutually different treating liquids onto the substrate through respective exhaust ports, and a controller to control the liquid feeding unit.

An apparatus for performing liquid treatment for a substrate is provided. The apparatus for performing the liquid treatment for the substrate may include a housing having a treatment space, a substrate support unit to support and rotate the substrate in the treatment space, a liquid feeding unit including a nozzle device including a central exhaust port and multiple first outer exhaust ports, which are provided in a shape of a ring to form a concentric circle with the central exhaust port to feed mutually different treating liquids onto the substrate through respective exhaust ports, and a controller to control the liquid feeding unit.

The present disclosure discloses a combination water outlet device and a toilet. The combination water outlet device comprises a housing, and a spray pipe. The housing is disposed with an inlet and an outlet. The outlet surrounds the spray pipe, the spray pipe comprises a pipe body, a nozzle, and a valve port. At least two water passages are disposed in the pipe body. The nozzle is disposed on a first end of the spray pipe configured to extend out of the housing, and the valve port is disposed on a second end of the spray pipe. The valve port comprises at least two first water inlet holes and at least two valve flaps. The at least two valve flaps are respectively configured to close the at least two first water inlet holes. The inlet comprises at least two water inlet passages and at least two check valves.

To provide a nozzle hanger on which a filling nozzle can be easily, quickly, and reliably hung and removed, and which can also handle pre-cool filling. A nozzle hanger 1 for hanging a filling nozzle 11, of which one end has a filling pipe 11a for filling a hydrogen gas and the other end has a grip section 11b, is provided with: an upper part 2 that holds the filling pipe of the filling nozzle; a lower part 3 that faces the upper part and holds the grip section of the filling nozzle; and an intermediate part 4 that connects the upper part and the lower part, wherein the lower part is provided with a fixed lock section (a recessed section 6, a stepped section 7) that locks the grip section of the filling nozzle in a fixed state, and the upper part is provided with a movable lock section 5 that contacts the filling pipe of the filling nozzle and locks the filling pipe in a movable state. The movable lock section can be provided with biasing means (a spring 5c) that biases the filling pipe downward when the filling nozzle is hung on the nozzle hanger. The movable lock section is formed in a spherical shape that protrudes downward, and a gas outlet 5d can be provided in a central region thereof.

A bidet washing apparatus attachable to a toilet bowl for cleaning one or more body parts of a user includes a water inlet, a control unit, a control unit switch, and a control unit outlet; a reservoir dispenser having a chamber, a reservoir dispenser switch, a reservoir dispenser valve, and a reservoir dispenser outlet; a nozzle assembly having a washing nozzle, connected to the control unit outlet with a water tube, a protective shield gate covering the nozzle assembly and washing nozzle; and a plurality of nozzle assembly and/or gate cleaning outlets connected to the reservoir dispenser outlet with a water tube for cleaning and/or disinfecting the nozzle assembly, washing nozzle, and/or the protective gate.

A cleaning method is provided during which a cover assembly is removed from a pressure pot of a material spray system. The cover assembly is mated with a wash tank, where the cover assembly closes an opening into the wash tank. Cleaning solution is directed into a cavity of the wash tank and against the cover assembly to remove material residue from the cover assembly.

A cleaning method is provided during which a cover assembly is removed from a pressure pot of a material spray system. The cover assembly is mated with a wash tank, where the cover assembly closes an opening into the wash tank. Cleaning solution is directed into a cavity of the wash tank and against the cover assembly to remove material residue from the cover assembly.

Provided is a cleaning device, comprising a wiper, a first clamping plate, a second clamping plate, a first elastic clamp and a second elastic clamp. The first clamping plate comprises a first plate body, a first bent portion and a first end portion. The first bent portion extends between the first plate body and the first end portion in a bent manner. The second clamping plate comprises a second plate body, a second bent portion and a second end portion. The second bent portion extends between the second plate body and the second end portion in a bent manner. The wiper is positioned between the first clamping plate and the second clamping plate. The cleaning device is moved relative to the nozzle to wipe the nozzle for cleaning. The wiper will not generate pollution and basically causes no wear to the nozzle.