A device for providing abrasive to a cutting head in a liquid jet cutting system can include an abrasive inlet configured to receive abrasive from an abrasive source, an abrasive outlet downstream from the abrasive inlet and configured to provide the abrasive to the cutting head, and a backflow diverter configured to discharge backflow from the device. In some embodiments, the backflow diverter can be configured to discharge a first portion of the backflow from the device, and device can further include one or more spillways configured to discharge a second portion of the backflow from the device. The one or more spillways can be positioned upstream from the backflow diverter and/or downstream from the abrasive inlet. The backflow diverter and/or the spillways can at least partially or fully prevent the backflow from flowing upstream through the abrasive inlet and/or into the abrasive source.

Silencing and separation in a cold-air, essential-oil, diffuser apparatus and method pass flow through a channel having comparatively high aspect ratios of length to thickness and width to thickness. Curved, tapered, non-parallel, and quasi random surfaces reduce probability and power of resonant frequencies. Offsetting flow through a channel is followed by impingement against an obstructing surface, redirection elsewhere within a drift (separation) chamber, and exiting through a smaller, and differently oriented exit port. Silencing is improved by changes of cross-sectional area creating high-pass and low pass acoustic filters, changes of direction, and absorption of acoustic energy in fluid-droplet-laden air.

A spray trough is described herein, including a trough body, wherein the trough body has a bottom portion, a first side portion, a second side portion, a front portion, and a back portion, the bottom portion, the front portion, and the back portion each having a first end and a second end, a top plate having a first end and a second end, wherein the first end of the top plate is fixedly attached to the second end of the back portion, wherein the top plate extends substantially perpendicular from the second end of the back portion, and a deflector plate, wherein the deflector plate is attached to the second end of the front plate, wherein the deflector plate extends downwardly from the second end of the front plate, such that the deflector plate angles towards the front portion.

A wood-thawing installation for thawing frozen pieces of raw timber includes a thawing channel. The thawing channel has an entrance and an exit for the pieces of raw timber for the raw wood pieces to enter and exit the thawing channel. A plurality of nozzles are located on the thawing channel to introduce a thawing liquid into the thawing channel. A first section of the thawing channel and a second section of the thawing channel are located between the entrance and the exit. The exit is closer to the second section than to the first section. At least one of the nozzles is located in the first section and connected via a pumping line to a suction opening located in the second section. Further disclosed is a method for thawing frozen raw wood pieces.

The present invention relates to a spray apparatus and a method for controlling the spray apparatus in a system for controlling special effects in a 4D movie theater that are configured to spray water therefrom to provide rain and wind special effects, and more particularly, to a spray apparatus and a method for controlling the spray apparatus that are configured to drain the residual water remaining therein to the outside just after driving stops, while being engagedly operated with a content reproduced in a movie theater to provide rain and wind special effects for customers.

A mask and air pressure control system for use in coating deposition is disclosed. A method is provided for controlling liquid coating droplets during deposition onto a substrate by directing atomized liquid coating droplets in a flow path toward the substrate, and applying a vacuum or pressurized air from an air pressure control system to at least a portion of the atomized liquid coating droplets in the flow path. The air pressure control mask comprises an air pressure control fixture structured and arranged for connection to a source of vacuum or pressurized air, and a nozzle opening structured and arranged to at least partially surround a flow path of the liquid coating droplets and to selectively allow at least a portion of the liquid coating droplets to pass through the air pressure control mask, wherein the vacuum or pressurized air prevents at least a portion of oversprayed liquid coating droplets from being deposited on the substrate outside an intended edge of the coating.

A mask and air pressure control system for use in coating deposition is disclosed. A method is provided for controlling liquid coating droplets during deposition onto a substrate by directing atomized liquid coating droplets in a flow path toward the substrate, and applying a vacuum or pressurized air from an air pressure control system to at least a portion of the atomized liquid coating droplets in the flow path. The air pressure control mask comprises an air pressure control fixture structured and arranged for connection to a source of vacuum or pressurized air, and a nozzle opening structured and arranged to at least partially surround a flow path of the liquid coating droplets and to selectively allow at least a portion of the liquid coating droplets to pass through the air pressure control mask, wherein the vacuum or pressurized air prevents at least a portion of oversprayed liquid coating droplets from being deposited on the substrate outside an intended edge of the coating.

A device for spraying a liquid for use in dye penetration inspection into an inner cavity of a workpiece for making a turbine engine part, the device including a workpiece support, a manifold for spraying the inspection liquid into the inner cavity, a manifold for sucking up and discharging the sprayed inspection liquid, and a mechanism for tilting at least a portion of the support from a substantially horizontal position to an inclined position in which the workpiece is inclined so that the inspection liquid sprayed into the cavity flows under gravity to a zone from which it is sucked up.

A wet/dry sheet dispenser. The dispenser has an elongate refill which holds a liquid and fits into a complementary base. Liquid is selectively dispensed from the refill by longitudinal activation of a pump. The pump may be disposed on either the refill or base. Liquid flows from the refill, upwardly to a dispensing cup. The user may then, optionally, take a sheet and wet it with liquid from the cup at the point of use. This arrangement allows for convenient and selective one hand pump operation, so the other hand is free to grasp the sheet. The sheet may be used wet or dry as desired at the point of use.

A de-ice apparatus is configured to remove ice buildup in containers or other locations by melting the ice using a de-ice component and to remove waste fluid using a vacuum component. The de-ice component causes discharge of pressurized fluid to melt ice. The de-ice component may include a base with guide features configured to engage an opening of the container. The de-ice component may direct a spray of the pressurized fluid into the container to melt the ice. The de-ice component may include a pressure regulator valve to selectively regulate a resulting force of the fluid sprayed into the container, which may enable a user to avoid damaging internal components located within the container. The vacuum component may cause the pressurized fluid to flow through a high pressure nozzle to create a vacuum effect at a suction inlet, which can extract waste fluid and/or other debris from the container.