A spray assembly for a working machine that includes a fluid storage tank includes a plurality of nozzle assemblies, each of which includes a direct acting valve. The spray assembly also includes a controller that is operatively connected to each of the direct acting valves for controlling the opening and closing of the direct acting valves, and a selector that is operatively connected to the controller. The selector may be employed by an operator of the working machine to selectively operate one or more of the direct acting valves in order to provide a desired spray pattern of fluid from the fluid storage tank.

This invention provides for a device and methods of dispensing a precise predetermined volume of liquid of discrete drops, vapor, or mist while preventing contamination due to Pull Back and ensuring precision dispensing.

A method for preparing hot stamping cylindrical EPE sliver, including the following steps: Step 1, prepare a hot stamping die: an annular pattern, which is annular and will be stamped on the surface of a hollow cylindrical EPE sliver, is expanded as a planar pattern to prepare a flat stamping die. Step 2, the flat stamping die is installed on a heating device of a hot stamping machine, and a hot stamping temperature is adjusted. Step 3, the hollow cylindrical EPE sliver is set in a rotation axis of the stamping machine. Step 4, form a figuration by extruding each other when the rotating EPE sliver figuration passes through said hot stamping pattern on said stamping die. Step 5, the rotational speed of the rotation axis and the horizontal speed are set equally. Step 6, start-up a hot stamping button, therefore resulting in perfect hot stamping in 360 degree.

In one embodiment, a self-cleaning nozzle comprises a nozzle body, a sleeve surrounding a proximal end of the nozzle body, a pillar disposed within the nozzle body and a spring. The nozzle body may have a hollow cylindrical interior. The nozzle body may include an orifice formed in a distal end of the nozzle body, a shoulder formed on a proximal end of the nozzle body, and a first bearing surface on an outer lateral face of the shoulder. The sleeve may include a second bearing surface on an inner face of the sleeve and a retaining lip formed at a distal end of the sleeve. The retaining lip may define a distal end of an annular space between the sleeve and the nozzle body. The shoulder may define a proximal end of the annular space. The pillar may have a distal tip configured to interface with the orifice, thereby forming a liquid seal. The spring may be captured within the annular space, thereby biasing the distal tip of the pillar into contact with the orifice.

An electrically-actuated variable pressure control system for use with flow-controlled liquid application systems. Direct acting solenoid valves are pulsed at varying frequencies and duty cycles0000change the resistance to flow encountered by the flow-controlled liquid application system. This pulsing solenoid valve technique preserves a high degree of accuracy and uniformity through a wide range of pressure control. This wide range of pressure control indirectly allows the flow-controlled liquid application system to operate over a wider range of flow control, yielding indirect benefits to performance and productivity. When the solenoid valves are attached to pressure-atomization spray nozzles, control over spray pattern and droplet size is further achieved.

A manual check valve for use when priming a fluid supply for a spray gun includes an orifice that opens from the fluid supply into a storage chamber, the storage chamber captures any fluid that is expelled from the fluid supply during priming, and the storage chamber is sealed with a closure. Sealing the storage chamber traps any expelled fluid in the storage chamber and prevents any of the expelled fluid from leaking onto another surface, which keeps the priming operation clean.

Disclosed is a portable electronic device casing for storing and dispensing chemical products. The portable electronic device casing includes housing, an output port and plurality of release buttons. The housing includes a front side portion to receive a portable electronic device and a rear side portion extending from the front side portion. The rear side portion having plurality of storage chambers to store chemical products. The output port is configured in the housing to release the stored chemical product from at least one of the plurality of storage chambers. Each of the release buttons is configured with each of the plurality of storage chambers. The release button releases the chemical product from the respective storage chamber through the output port. Further, the portable electronic device casing includes chemical product capsules for storing chemical products are inserted in the storage chambers. Furthermore, the portable electronic device casing includes plurality of releasing ports to dispense the chemical product from either the chemical product capsules or the storage chamber.

Disclosed is a portable electronic device casing for storing and dispensing chemical products. The portable electronic device casing includes housing, an output port and plurality of release buttons. The housing includes a front side portion to receive a portable electronic device and a rear side portion extending from the front side portion. The rear side portion having plurality of storage chambers to store chemical products. The output port is configured in the housing to release the stored chemical product from at least one of the plurality of storage chambers. Each of the release buttons is configured with each of the plurality of storage chambers. The release button releases the chemical product from the respective storage chamber through the output port. Further, the portable electronic device casing includes chemical product capsules for storing chemical products are inserted in the storage chambers. Furthermore, the portable electronic device casing includes plurality of releasing ports to dispense the chemical product from either the chemical product capsules or the storage chamber.

Provided is a pressurizing apparatus that pressurizes a photoresist. In an embodiment, the pressurizing apparatus includes: a housing including a wall surface defining an internal space; a film separating the internal space into a first space and a second space; a first inlet which is in communication with the first space; a second outlet which is in communication with the first space; and a pressurization gas inlet which is in communication with the second space, and in the housing, a transverse section of the internal space has a large width of a first direction and a small width of a second direction perpendicular to the first direction, and the width of the internal space in the second direction includes a section which is narrowed toward a second side which is the other side from a first side which is one side in the first direction.

A system for regulating the power supply of the electric, motor incorporated in an airless paint spray unit so as to enhance the efficiency and performance of the airless paint spray unit. The system includes the utilization in the rector control for the electric motor driving the pump of the airless paint spray unit of an active Power Factor Correction (PFC) switching power supply adapted to regulate the electrical power supplied to the motor.