Patent ID: 6089474
Filing Date: 2000-07-18
Classification: A62C,B05B,Y10T

Abstract:
An apparatus for selectively discharging a stream of liquid, the apparatus comprising:a body having an inlet end, an outlet end, and a passage extending between the inlet end and the outlet end;the inlet end adapted for connection to a source of liquid under pressure;the passage fluidly connecting the inlet end and the outlet end;a throttle valve bounded by the passage, wherein the throttle valve comprises a flow restricter, and wherein the flow restricter is enabled to move within the passage toward the outlet end in response to an increase in liquid pressure and wherein the flow restricter is enabled to move within the passage toward the inlet end in response to a decrease in liquid pressure, the flow restricter cooperating with the passage to control the flow of liquid;the outlet end adapted for discharging the stream of liquid;a rod bounded by the passage;a spring disposed within the passage and bounding the rod;wherein the flow restricter is enabled to move on and relative to the rod in the direction of the passage outlet end at a liquid pressure above a selected value, and wherein the area between the flow restricter and the passage is reduced and liquid flow from the inlet end to the outlet end is reduced.