초록 ▼

A device intended primarily for use in a shower stall that is adapted to dispense a predetermined total amount of a selected additive into a water stream, with the rate of mixing of the additive and water being controlled as a function of the water pressure. A positive displacement pump is used to d

A device intended primarily for use in a shower stall that is adapted to dispense a predetermined total amount of a selected additive into a water stream, with the rate of mixing of the additive and water being controlled as a function of the water pressure. A positive displacement pump is used to dispense the additive from a storage chamber, and the additive is dispensed via a controllable applicator device.

대표청구항 ▼

A device for dispensing a predetermined quantity of a selected additive in liquid form and mixing it with a selected diluting liquid comprising: a container for holding a supply of said selected additive; a positive displacement pump comprising a vessel, displacement means within said vessel subdivi

A device for dispensing a predetermined quantity of a selected additive in liquid form and mixing it with a selected diluting liquid comprising: a container for holding a supply of said selected additive; a positive displacement pump comprising a vessel, displacement means within said vessel subdividing the interior of said vessel into a first variable volume additive-containing compartment and a second variable volume diluting liquid-containing compartment, a first port for admitting said additive to said first compartment, a second part for admitting said diluting liquid to said second compartment, first means including an inlet passageway communicating with the interior of said container and a first check valve for conveying additive from said container into said first compartment via said first port, second means including a discharge passageway and a second check valve for conveying additive out of said first compartment via said first port; means for conveying said diluting liquid from a supply line into said second compartment via said second port; and means for admixing said diluting liquid with said additive as said additive is discharged from said first compartment via said first port, said second check valve, and said discharge passageway.