Abstract:
The present invention relates to an auto-switching spraying apparatus. The auto-switching spraying apparatus of the present invention includes: a pipe body including at least one nozzle branch pipe and a backflow pipe for reversing the flow of water flowing through an upper opening into a branch area and supplying the water to the nozzle branch pipe; a pad disposed at the lower portion of the branch area; and a biasing unit elastically supported by a spring from a pipe body cover, between the pad and the pipe body cover coupled to a lower opening of the pipe body to bias the pad toward the upper opening. According to the spraying apparatus of the present invention, a flow passage for the nozzle branch pipe is automatically opened when water is supplied and automatically closed when the supply of water is halted. Therefore, water leakage through the nozzle may be prevented after the supply of water is halted.
Abstract:
A nozzle comprises a lower nozzle plate including a lower impingement surface formed therein, at least one fluid intake port disposed at an inner end of the lower impingement surface, and an upper nozzle plate including an upper impingement surface formed therein and an upper orifice edge disposed along an outer end of the upper impingement surface. The nozzle includes a seal configured for sealing the lower nozzle plate to the upper nozzle plate, such that the lower and upper impingement surfaces are opposed toward one another, thereby forming a fluid channel between the impingement surfaces, directing pressurized fluid from the at least one fluid intake port to a slotted orifice formed between the opposed lower and upper orifice edges. The nozzle includes a droplet size adjustment mechanism configured for attachment to the upper and lower nozzle plates for selectively controlling fluid droplet size ejected from the slotted orifice.
Abstract:
An improved irrigation spray head for use with pressurized water to produce a generally 360° spray pattern is provided. The spray head has a first channel that provides a water flow path in a generally vertical direction from the distal end of the spray head body to a main exit port. The spray head body includes a cavity having a geometry that, along with the first channel and the main exit port designs, causes the pressurized water to disperse radially outward away from the spray head body in the generally 360° spray pattern. A plurality of secondary channels provides secondary water flow paths from a plurality of interior ports in the cavity to a plurality of sidewall exit ports. The secondary channels result in a water flow out of the sidewall ports at a reduced water velocity thereby providing enhanced, close-in irrigation coverage.
Abstract:
The present invention is a dispenser adapted to be coupled to a fluid container. The dispenser comprises a dispensing head, an energy sourc, and a fluid pathway. The dispensing head includes a fluid pump, a motor adapted to power the pump, a trigger to control the motor, and a nozzle orifice in fluid communication with a discharge end of the pump. The fluid pathways has one portion in fluid communication with an intake end of the pump and another portion inside the container.
Abstract:
Valve (10) for the periodic and cyclic or otherwise intermittent release of a fluid is described along with an irrigation sprinkler (5) incorporating the valve (10). The valve opens when a critical pressure level is reached in a reservoir (12) attached to the valve, thereby permitting a portion of the fluid contained within the reservoir (12) to be released through the valve. As the fluid is released, the pressure in the reservoir decreases. The valve does not close until the pressure level in the reservoir reaches a second pressure level that is below the critical pressure level. When the reservoir (12) is refilled from a pressurized source at a controlled rate that is less the rate at which the fluid is expelled through the valve when open, the valve (10) will cycle repetitively.
Abstract:
A phenomenon of sucking air via a discharge port in a nozzle tip end that occurs when a plunger rod (8) retracts away from a valve seat is prevented. A method or device of discharging droplets by sending pressure-regulated liquid or liquid stored in a container, as required, flying in droplets from the valve's discharge port (6), wherein a liquid supply amount is so controlled as to follow up a difference in pressure between the discharge port (6) and a flow passage in the valve body (1) to thereby prevent bubbles from being mixed into via the discharge port (6). Droplets are continuously discharged at a high tact. A plunger rod (8) retracted by an air pressure opens the discharge port, and the plunger rod (8) advanced by the resilient force of a spring (9) discharges droplets via the discharge port. The retracting speed of the plunger rod (8) is so controlled by an air flow rate as to prevent bubbles from being mixed into via the discharge port when the plunger rod (8) retracts.
Abstract:
A porous material valve (18) is placed in the fluid conveyance path of a fluid dispensing apparatus (2). By selecting a specific thickness of the porous material, the size of the pores, the pore volume, and the hydrophillic/hydrophobic balance of the material, a predetermined activation/closure pressure and flow rate is achieved.