A nozzle auto-cleaning device and a nozzle auto-cleaning method are disclosed. The nozzle auto-cleaning device includes a base and a cleaning piece feeding unit disposed on the base, the base has a bearing surface on which the cleaning piece feeding unit is disposed, the cleaning piece feeding unit is configured to transport a cleaning piece installed inside the nozzle auto-cleaning device along a first direction intersected with the bearing surface so that a first portion of the cleaning piece is protruded in a direction away from the bearing surface and inserted into a nozzle, and the base is configured to move along at least one direction of the first direction, as well as a second direction and a third direction intersected in a plane of the bearing surface, so as to drive the first portion of the cleaning piece to move inside the nozzle.

An apparatus for unclogging a surgical-suction device (21) comprising a base (22) that defines at least one hole (26). A stylet (28) extends perpendicularly from the center of the base (22) along an axis (A) for receiving the surgical-suction device (21). The stylet (28) defines an exterior and an internal chamber (32) that communicates with the hole (26) in the base (22). The stylet (28) defines at least one aperture (40) in fluid communication between the chamber (32) and the exterior of the stylet (28) for communicating with the surgical-suction device (21). A valve (60) having an open position (FIG. 1) for allowing fluid to flow through the hole (26) of the base (22) and the aperture (40) in the stylet (28) and a closed position (FIG. 2) for preventing fluid to flow through the hole (26) of the base (22) and the aperture (40) in the stylet (28).

A cleaning device for a mechanical cleaning of a gas nozzle of a protective gas welding burner, provided with a controlled, rotatably driven cleaning head having at least one co-rotating cleaning element, and with a supplying and centering apparatus for a coaxial positioning of the gas nozzle with respect to the axis of rotation of the cleaning head in the region of at least one cleaning element. The cleaning head has two cleaning arms creating a scissors-form with the cleaning arms, which are suspended in a freely swinging manner on a pivot bearing arranged transversely to the axis of rotation in the cleaning head. Respective centrifugal weights are arranged on the cleaning arms on the lower regions facing away from the gas nozzle, so that the cleaning scissors are spread apart with a rotation of the of the cleaning head.

A cleaning device for a mechanical cleaning of a gas nozzle of a protective gas welding burner, provided with a controlled, rotatably driven cleaning head having at least one co-rotating cleaning element, and with a supplying and centering apparatus for a coaxial positioning of the gas nozzle with respect to the axis of rotation of the cleaning head in the region of at least one cleaning element. The cleaning head has two cleaning arms creating a scissors-form with the cleaning arms, which are suspended in a freely swinging manner on a pivot bearing arranged transversely to the axis of rotation in the cleaning head. Respective centrifugal weights are arranged on the cleaning arms on the lower regions facing away from the gas nozzle, so that the cleaning scissors are spread apart with a rotation of the of the cleaning head.

The present disclosure provides a cleaning device for nozzle, which includes: a base seat and a plurality of scrape components defined on the base seat, the scrape components are arranged in a straight line, a rear end of each of the scrape components form a notch, the notches match with the nozzle, the nozzle passes through the notches of all the scrape components in sequence and contracts with all the scrape components when the nozzle is scraped, to scrape the residue photoresist away from the nozzle by scraping the nozzle multiple times.

An apparatus and method for delivery of fluids, particularly biological, reactive fluids. The apparatus provides an opening when force is acted on the apparatus, and closure when no force is acted thereon. The apparatus provides a cleaning mechanism to remove fluids and other materials from a mixing space after use.

An apparatus and method for delivery of fluids, particularly biological, reactive fluids. The apparatus provides an opening when force is acted on the apparatus, and closure when no force is acted thereon. The apparatus provides a cleaning mechanism to remove fluids and other materials from a mixing space after use.

A powder coating booth includes booth walls and a roof which can be lowered between the booth walls, wherein a gap is provided between the roof and the booth walls. The roof has compressed air nozzles for spraying the booth walls. In addition, a supporting device is provided, which supports the roof. In at least one of the booth walls a vertical slot is provided through which the supporting device protrudes into the booth and in which the supporting device is movable. In addition, the booth includes a bottom (19) with a suction, which is connectable with the suction inlet of a cyclone separator via a suction pipe.

A powder coating booth includes booth walls and a roof which can be lowered between the booth walls, wherein a gap is provided between the roof and the booth walls. The roof has compressed air nozzles for spraying the booth walls. In addition, a supporting device is provided, which supports the roof. In at least one of the booth walls a vertical slot is provided through which the supporting device protrudes into the booth and in which the supporting device is movable. In addition, the booth includes a bottom (19) with a suction, which is connectable with the suction inlet of a cyclone separator via a suction pipe.

An internal coating spray machine for cans or containers having spray gun(s) with nozzle(s) which may be automatically cleaned. Each spray gun has a clamp bracket which carries an actuator carrying a cleaning brush. When the actuator is actuated, it carries the brush from a first location (out of the way) to a second location in which the brush moves across the nozzle, cleaning it. The IC machine HMI (human-machine interface) may have a manually actuated control, for example, a button or soft button, which pauses can spraying and carries out a cleaning cycle. It may also use the low infeed sensor of the IC spray machine to detect when cans will be momentarily delayed coming in, and automatically clean during that small hiatus. A timer automatically initiates a cleaning cycle if one has not otherwise happened in a given time X.sub.t.