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Fluid product dispenser with shunting chamber and governing device

  • US 8,733,591 B2
  • Filed: 09/30/2010
  • Issued: 05/27/2014
  • Est. Priority Date: 10/04/2009
  • Status: Expired due to Fees
First Claim
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1. A dispenser for dispensing a fluid product, comprising a housing for accommodating an assembly, the assembly comprising:

  • a liquid reservoir, for containing a liquid product;

    a pump, connectable to the reservoir, for dispensing the fluid product using the liquid product as an input;

    an outlet nozzle, serving to convey and dispense the fluid product from the pump;

    whereby the pump comprises;

    a liquid chamber, for containing a dose of the liquid product, obtainable from the liquid reservoir;

    a pressurizing device, which allows liquid product to be drawn into or expelled from the liquid chamber,wherein the dispenser is further provided with a shunting chamber comprising;

    a first aperture allowing flow access to the liquid reservoir;

    a second aperture allowing flow access to the outlet nozzle;

    a third aperture allowing flow access to the liquid chamber,the third aperture being disposed off-axis with respect to the first and second apertures, the shunting chamber further comprising a governing device that has two states, such that;

    in a first state, a first flow path is created between the first and third apertures;

    in a second state, a second flow path is created between the third and second apertures,and wherein;

    the liquid chamber and pressurizing device are mounted as fixtures in the housing, and;

    the liquid reservoir and outlet nozzle are removably mountable as disposable components in the housing.

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