A reciprocating plunger-type valve mechanism or assembly, which can be utilized in conjunction with adhesive dispensing applicators to control the dispensing of adhesive compositions which are to be used in connection with the bonding, securing, or fixation of pavement markers to road pavement surfaces, is disclosed. The mechanism or assembly comprises dual shutoff locations in connection with the supply of the incoming adhesive material so as to effectively reduce the prevailing pressure upon the shutoff blade controlling the adhesive material dispensing/discharge port whereby soft pressure starts and controlled deposition quantities are enabled while the generation of residual adhesive material or splatter is avoided.

An extension device for spraying devices has an extension unit, which has, at a first end, a spraying head having at least one material outlet nozzle and, at a second end, means for connecting a spraying device. The extension device is characterized in that the extension unit has a metering and shut-off valve, which has a valve seat element having a valve opening and which has a valve body, that the valve body is arranged between the spraying head and the valve seat element, and that the valve body is fastened to a tension-transmitting element, which extends through the valve opening. The invention further relates to a spraying device for spraying material onto surfaces, with the spraying device having such an extension device.

A valve assembly wherein the inner wall of the valve body comprises at least one opening for the entry of a liquid under pressure following output of a slurry or liquid from a tube or pipe. The valve assembly is particularly useful in maintaining a semi-continuous or continuous pressurized flow of biomass from an extruder and extending the reaction zone downstream from the extruder. An advantage of having an extended reaction zone allows for a complete treatment of materials without further wear on the extruder and also allows manipulation of the upstream treatment of materials in the tube or pipe.

An irrigation sprinkler includes a main valve mounted in the lower end of an outer housing for controlling the flow of water through an inlet of the outer housing. A pilot valve is operatively coupled to the main valve for turning the main valve ON and OFF. A solenoid is operatively coupled to the pilot valve for opening and closing the pilot valve. A service valve is operatively coupled between the main valve and the pilot valve. The service valve is manually actuable from an AUTO state to allow normal operation of the sprinkler and to an OFF state to allow repair or replacement of the pilot valve or solenoid without having to manually shut OFF a supply valve that is coupled to the inlet of the outer housing through a supply pipe.

An irrigation sprinkler nozzle assembly including a pressure regulator having a low friction seal for a riser assembly in which the regulator is installed. The pressure regulator includes a movable portion, a fixed portion located upstream of the movable portion, and connectable to a water inlet, and a biasing member such as a spring which applies a force to the movable portion according to a pressure differential between the water inlet pressure and a reference pressure. The fixed and movable portions move relative to each other according to the force provided by the biasing member to provide a variable flow restriction which maintains the desired pressure. The low friction seal is a diaphragm connected at one end to the movable member and anchorable at another end in the nozzle head.

One embodiment includes a dispenser device and container for mixing a chemical concentrate and a diluent to produce a diluted mixture. The dispenser device may include a housing, a slide, and an eductor. The container holds the chemical concentrate. The dispenser device communicates with the chemical concentrate and with the diluent.

A valve assembly wherein the inner wall of the valve body comprises at least one opening for the entry of a liquid under pressure following output of a slurry or liquid from a tube or pipe. The valve assembly is particularly useful in maintaining a semi-continuous or continuous pressurized flow of biomass from an extruder and extending the reaction zone downstream from the extruder. An advantage of having an extended reaction zone allows for a complete treatment of materials without further wear on the extruder and also allows manipulation of the upstream treatment of materials in the tube or pipe.

Embodiments of the present disclosure relate to water fountain structures, and more specifically relate to modular fountain structures that include an adjustment bezel for changing a flow of water via an adjustable valve housed within them fountain structure. Adjustments to the valve to adjust the flow of water are effected by accessing the valve at the site of the fountain structure. The adjustment bezel or other manipulable device is incorporated with each fountain structure to provide control for flow of water emitted from the fountain, as the adjustment bezel is accessible without removal and/or disassembly of the fountain structure.

Embodiments of the present disclosure relate to water fountain structures, and more specifically relate to modular fountain structures that include an adjustment bezel for changing a flow of water via an adjustable valve housed within the fountain structure. Adjustments to the valve to adjust the flow of water are effected by accessing the valve at the site of the fountain structure. The adjustment bezel or other manipulable device is incorporated with each fountain structure to provide control for flow of water emitted from the fountain, as the adjustment bezel is accessible without removal and/or disassembly of the fountain structure.

A valve assembly having a conical valve needle axially displaceable in a bore of a valve body wherein a portion of the larger diameter of the valve needle seats downstream at an annular ring when the valve is closed. There is an open area between one end of the valve body to the annular ring even at closure and nozzles for the input of a liquid. The inner wall of the valve body comprises at least one opening for the entry of a liquid under pressure following output of a slurry or liquid from a tube or pipe. The valve assembly is particularly useful in maintaining a semi-continuous or continuous pressurized flow of biomass from an extruder.