Abstract:
A spray-type dampening water supply apparatus having a spray whose nozzles are protected against adhesion of any foreign matter to the nozzle surfaces and in which at least orifices of the nozzles can be easily cleaned out. Each nozzle of the spray has a guide surface slanting from an upstream outer peripheral edge toward a downstream central orifice. A partition of the spray is disposed downstream of the nozzle assembly and has a plurality of apertures confronting the respective nozzles. The spray is equipped with means for opening and closing the apertures of the partition.
Abstract:
A spray-type dampening water supply apparatus having a spray whose nozzles are protected against adhesion of any foreign matter to the nozzle surfaces and in which at least orifices of the nozzles can be easily cleaned out. Each nozzle of the spray has a guide surface slanting from an upstream outer peripheral edge toward a downstream central orifice. A partition of the spray is disposed downstream of the nozzle assembly and has a plurality of apertures confronting the respective nozzles. The spray is equipped with means for opening and closing the apertures of the partition.
Abstract:
A fluid applicator used to apply an even coat of fluid to a surface which is not accessible along a longitudinal axis of the applicator. The applicator includes a fluid delivery system that delivers the fluid under low pressure, and has a distal end bent 30° to 60° from the applicator's longitudinal axis. The applicator also has an air delivery system with a distal end bent at an angle identical to the distal end of the fluid delivery system. The air delivery system delivers a high pressure jet of air 90° relative to the fluid, thereby aspirating the fluid and ejecting it onto the inaccessible surface.
Abstract:
A pneumatically operated spray gun for dispensing fluid materials, and having a disposable supply hose for eliminating dean up problems common when using more expensive hoses and fittings. As a result, the spray gun is easy to dean and maintain since no spray material is introduced through internal parts of the spray gun. such as valves, passages, and inlet and outlet ports. The spray gun includes a gun housing having an air inlet port, an air outlet port, and a spring biased air valve disposed between the inlet and the outlet ports. The air valve is biased in a closed position. A trigger is pivotally attached to the gun housing and engages the air valve. The trigger is also attached to one end of a spring biased pinch valve mounted in the housing. Another end of the pinch valve is biased against one end of a material disposable supply hose for pinching off the supply of material therethrough. An end of the disposable supply hose is attached to the housing and disposed adjacent an end of the air outlet port. When the trigger is squeezed the air valve is moved to an open position allowing pressurized air to flow from the air inlet port to the air outlet port. Simultaneously, the trigger moves the pinch valve releasing it from the side of the disposable supply hose, thereby allowing material to flow through the hose and engage an air stream emitted from the end of the air outlet port.
Abstract:
This invention relates to the treatment of substrates with fluidized material in repetitive patterns during application cycles. The treatment patterns made with this invention can be altered by changing machine operating parameters. The patterns of fluidized material are applied to substrates using intermittent charges of compressed air. The intermittent charges of compressed air pass through a venturi slot which creates a region of low pressure in the charges adjacent to a region where the fluidized material accumulates between application cycles. This region of low pressure helps to entrain the fluidized material in the charge of compressed air. After the fluidized material is entrained in the charge of compressed air, the charge deposits the fluidized material on the substrate.
Abstract:
In a high pressure spray cleaning apparatus and method there is provided separate pressurized flow circuits to separate inlets of a spray head. A chemical flow circuit delivers a cleaning chemical fluid under pressure and a carrier flow circuit delivers a heated carrier fluid, preferably water and or soap, under a relatively high pressure. The pressurized cleaning chemical fluid and heated water are intimately mixed and distributed by a novel spray head. A power-driven air compressor is coupled to a chemical storage tank containing a cleaning chemical in the chemical flow circuit. A power-driven positive displacement pump associated with a by-pass unloader valve regulates the pressure of the water from a water tank delivered to a heating coil in which the water is heated in the carrier flow circuit. When the heated water is not being sprayed at the spray head, it is automatically returned by the operation of the by-pass unloader valve at a reduced pressure to the water tank. An electric control circuit controlling a heating unit selectively heats the heating coil during certain operating conditions and automatically stops the heating of the coil under other conditions. The spray head is carried on the end of a hand held wand with control valves to separately regulate flow through each circuit, the spray head having a nozzle that sprays the heated water in a fan-like pattern against a deflecting edge and cleaning chemicals are forced through an aperture into the fan-like pattern prior to its striking the deflecting edge to be intimately mixed with the heated water to produce a mixture that strikes the deflecting edge and is deflected therefrom in a highly concentrated form at a high velocity.