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US 7,222,802 B2Granted
Dual sprayer with external mixing chamber
AssigneeMeadWestvaco Corporation
InventorSteve L. Sweeton
Life of this patent
Estimating the term…
Abstract
A dual sprayer has an externally mounted mixing manifold for intimately commingling disparate liquids sprayed during pumping and issuing through a nozzle as a complete admixture of dual liquids.
Claims18
A trigger operated fluid sprayer for simultaneously dispensing first and second liquids stored in respective first and second liquid compartments, comprising:
- a dispenser housing having pump means including a pair of side-by-side pump pistons respectively reciprocable in a pair of side-by-side pump cylinders configured so that reciprocation of the pump pistons draws the liquids from the liquid compartments into the pump chambers and discharges the liquids through separate discharge passages;
- discharge nozzle means defining a pair of spin mechanics assemblies and corresponding discharge orifices respectively associated with said discharge passages, wherein liquids issue from said discharge orifices as separate sprays;
- and
- an external mixing manifold mounted to and downstream of said discharge nozzle means for combining the sprays issuing from the discharge orifices for discharge through a single discharge port.
1 more element
An assembly for use in a trigger operated fluid sprayer for simultaneously dispensing first and second liquids stored in respective first and second liquid compartments, the assembly comprising:
- a pump body;
- at least one nozzle cap mounted on said pump body at a forward end thereof;
- and
- a closure on said pump body for mounting the assembly to at least one liquid container having said compartments:
- said pump body having two separate discharge passages, at least one of said two discharge passages having a long axis, and said pump body having pump means including a pair of side-by-side pump pistons respectively reciprocable in a pair of side-by-side pump cylinders configured so that reciprocation of the pump pistons draws the liquids from the compartments into the pump chambers and discharges the liquids through said two separate discharge passages;
- and
- wherein the nozzle cap includes a pair of spin mechanics assemblies with two discharge orifices associated with said two discharge passages, wherein the liquids issue from said two discharge orifices as separate sprays in a direction having a component parallel to said long axis;
- an external attachment mounted on said nozzle cap, the attachment defining a mixing manifold in open communication with the two discharge orifices for combining the sprays issuing from the assembly through said two discharges orifices in said direction and for discharging the combined sprays through a discharge port in the attachment.
5 more elements
Dependencies are inferred from the claim text.