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Electro-mechanical fluid flow control apparatus

  • US 5,699,833 A
  • Filed: 03/25/1996
  • Issued: 12/23/1997
  • Est. Priority Date: 03/25/1996
  • Status: Expired due to Fees
First Claim
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1. An electro-mechanical fluid flow control apparatus to control the flow of water through a shower head directed to a target zone or a field from an external souce of pressurized water wherein said electro-mechanical fluid flow control apparatus comprises a valve assembly including a valve member and a valve member positioning device disposed in operatively relationship relative to the valve member to selectively move the valve member between a closed position and an open position and a control assembly to selectively move the valve member from the closed position to the open position allowing water to flow from the external source of pressurized water through the valve assembly to the shower head, said valve member is movably mounted to a valve body by a resilient valve member retainer, said valve body includes a valve flow port disposed to be selectively closed by said valve member and coupled between a fluid inlet supply conduit and a fluid outlet supply conduit by an inlet port and an outlet port respectively, a valve housing comprises a lower enlarged housing portion having a valve chamber formed therein to operatively house said valve member and an upper elongated housing portion having an outer actuator assembly disposed about the exterior thereof including an actuator chamber formed therein to operatively house an inner actuator assembly movable between an extended and retracted position, said outer actuator assembly comprises an electro-magnetic coil disposed in surrounding relationship relative to said inner actuator assembly and electrically connected to said control assembly to receive control signals therefrom and a permanent magnet disposed in spaced relationship relative to said electro-magnetic coil and said inner actuator assembly, said inner actuator assembly comprises a lower actuator member having a lower bias disposed within a recess formed therein and a shaped valve positioning element movably mounted between a lower position and an upper position within a pair of grooves formed on opposite sides of said actuator member and an actuator member having an upper bias disposed within a recess formed therein such that said lower end of said valve positioning element is normally biased in said lower position to engage said valve member to retain said valve member in said closed position, and said electro-magnetic coil selectively moves said inner actuator assembly to the retracted position whereby the lower end of said positioning element disengages said valve member opening said valve member.

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