초록 ▼

An adjustable flow applicator includes a body having an axial flow pasasge and an inlet passage adapted for connection to a source of pressurized fluidic material dispensed by a positive displacement constant flow rate dispenser. A nozzle is connected to the body and communicates with the flow passa

An adjustable flow applicator includes a body having an axial flow pasasge and an inlet passage adapted for connection to a source of pressurized fluidic material dispensed by a positive displacement constant flow rate dispenser. A nozzle is connected to the body and communicates with the flow passage and has an orifice. A reciprocal piston rod extension is spaced within the flow passage and terminates in a tapered valve member having an advanced position seated within the orifice to shut off flow of fluidic material and first and second retracted positions variably opening the orifice for reduced flow in a first position and higher flow in a second position. First remote control includes a first piston connected to the piston extension for effecting alternate reciprocal movements of the valve member for alternately opening and closing the orifice. A second pneumatic control includes a piston rod coaxially adjacent to the first piston and includes a reciprocal second piston which has an advanced position for limiting axial retracting movements of the valve member for limited flow of material and an alternate retracted position away from the first piston so the first piston can move to a fully retracted position.

대표청구항 ▼

An adjustable flow applicator for pressurized fluidic materials comprising: a body having an axial flow passage and an inlet passage communicating therewith and adapted for connection to a source of pressurized fluidic material; an axial nozzle connected to said body communicating with said flow pas

An adjustable flow applicator for pressurized fluidic materials comprising: a body having an axial flow passage and an inlet passage communicating therewith and adapted for connection to a source of pressurized fluidic material; an axial nozzle connected to said body communicating with said flow passage and terminating in a converging orifice for feeding said material; an axially reciprocal piston rod exension spaced within said flow passage and nozzle terminating in a tapered valve member having an advanced position normally seated within said orifice shutting off flow of fluidic material therethrough, and first and second retracted positions variably opening said orifice for a reduced flow rate of said material when in said first position and at an increased flow rate when in said second position; first pneumatic control means axially mounted upon said body receiving said piston rod extension and including a first piston connected to said piston rod extension for effecting alternate reciprocal movements of said valve member for alternately opening and closing said orifice; a piston rod connected to said piston; and a second pneumatic control means axially mounted upon said first pneumatic control means receiving said piston rod and including a reciprocal second piston; said second piston having an advanced position limiting axial retracting movements of said piston rod and valve member to a limited retracted reduced flow position and an alternate retracted position axially outward of said piston rod so that said valve member may move to said increased flow rate position, said second piston having a greater surface area than said first piston.