A car wash spray device can include a fluid inlet to receive a pressurized fluid from a fluid source. The car wash spray device can also include a first spray nozzle, and a first pressure-sensitive valve in fluid communication with the fluid inlet and the first spray nozzle. The first pressure-sensitive valve can be configured to allow flow of the pressurized fluid therethrough at or below a first pressure. The car wash spray device can further include a second spray nozzle, and a second pressure-sensitive valve in fluid communication with the fluid inlet and the second spray nozzle. The second pressure-sensitive valve can be configured to allow flow of the pressurized fluid therethrough at or above a second pressure. Controlling a pressure of the pressurized fluid can facilitate delivery of the pressurized fluid through at least one of the first nozzle and the second nozzle.

A machine tool chip removal device including a coupling interface to couple with a rotatable spindle of a machine tool to facilitate rotation of the machine tool chip removal device about an axis at a rotational speed. The chip removal device can also include a main fluid channel with an opening to receive pressurized fluid from the machine tool. The chip removal device can further include a first fluid delivery channel and a second fluid delivery channel to direct fluid in different directions. Each fluid delivery channel can be in fluid communication with the main fluid channel. In addition, the chip removal device can include one or more valves associated with the first and second fluid delivery channels to selectively allow fluid passage from the main fluid channel to the fluid delivery channels. The one or more valves can be actuated by varying fluid pressure and/or rotational speed.

Disclosed is a height and rotational adjustment system for a spray gun used in a line striper comprising: (a) a control device to set a dimension of a line to be sprayed and set an angle at which the line is to be sprayed; (b) a spray gun mount bar having a gun holder assembly to retain a spray gun; (c) a height adjustment mechanism coupled to the spray gun mount bar; (d) an angular adjustment mechanism coupled to the spray gun mount bar; and wherein the control device transmits signals (e.g., wirelessly) to: (1) the height adjustment mechanism to raise or lower the spray gun mount bar to spray the line with the dimension in (a), and (2) the angular adjustment mechanism to rotate, in a clockwise or counter-clockwise manner, the spray gun mount bar to spray the line at the angle in (a).

A pipe conditioning tool comprising a drive unit to move the tool along a pipe and a work head rotatable about an axis of the pipe to condition a surface of the pipe, the drive unit includes a frame extending to opposite sides of the pipe, the frame having legs extending radially beyond the work head to provide support for the tool upon removal from said pipe.

A developing device includes a spraying assembly and a concentration regulating assembly. A developing method usable in the developing device includes: spraying developing agents by a spraying assembly onto respective developing regions on a substrate to be developed; and spraying a regulating liquid by a concentration regulating assembly onto a target developing region on the substrate to be developed to change concentration of the developing agents.

The present invention discloses a wheel mold spraying device, which is composed of a frame, a servo motor, a servo electric cylinder, a hollow shaft, a nozzle and the like. Four side molds of a wheel are respectively placed on four slide plates; hand wheels are rotated to adjust the slide plates to proper positions through lead screws and guide rails; the servo motor drives the rotation of the hollow shaft and the nozzle through belt wheels and a synchronous belt, and the nozzle is automatically opened; and through guide posts, the servo electric cylinder lifts the nozzle to the top end while rotating, in which case the process of spraying for the four side molds can be completed.

An effective implementation is shown for a height adjustment system for a plurality of spray guns used in a line striper.

Rotating spray systems and related methods for enhancing spray performance can include one of more rotating spray assemblies formed of a plurality of individual, linear distribution manifolds to define a rotary cage. The rotary cage is fluidly coupled to a rotating distribution block on a distribution valve, with each linear distribution manifold being fluidly coupled to one of a plurality of distribution conduits defined in the rotating distribution block. The distribution valve further includes a fixed distribution block having an arcuate aperture defined therein. The rotating distribution block rotates relative to the fixed distribution block to individually and sequentially engage each distribution conduit with the arcuate aperture. When the individual distribution conduits are fluidly engaged with the arcuate aperture, pressurized fluid supplied to the distribution valve is supplied to the corresponding linear distribution manifold for spraying by one or more spray nozzles fluidly connected to each linear distribution manifold.

The invention relates to an apparatus for applying a coating to a pipe. The apparatus includes a mounting means for mounting the apparatus to the pipe, an applicator for applying the coating to the pipe and a moving means for moving the applicator relative to the mounting means and around the pipe.

An applicator machine and a process for heating and coating a section of pipeline. The applicator machine includes a frame configured to rotate about a section of pipeline to be heated and coated, rotating means operable to rotate the frame, and coating material applicators induction coils and radiant heaters mounted on the frame and rotatable therewith. The induction coil is configured to heat a section of pipeline adjacent to the induction coil to a coating material application temperature. The radiant heaters are configured to heat factory-applied coatings. Each coating material applicator sprays coating material through an aperture in a respective induction coil. The applicator includes an enclosure configured to surround a section of pipeline and provision for evacuating and collecting waste coating material. The coating material applicator may be configured to spray powder coating material, such as fusion bonded epoxy powder material and/or chemically modified polypropylene powder material.