The Procter Gamble Company

James Samuel Richardson

Robin Lefebvre

Victor Klabbers

Lee Burrowes

William John Cleveland Connolly

Andrew Graham Masters

Dominique Celine Ignace Marie Geeraert

Michael Alan John Moss

Walter Pierre Van Den Broeck

Corrine Elizabeth Elstow

Mitsuaki Shaduki

Elizabeth Jackson Glass

John David Lamb

Michael Alan Moss

A dispenser for applying at least two compositions, the dispenser including at least two reservoirs for storing the at least two compositions separately, at least two pumps for pumping the at least two compositions, which pumps have different strokes, an exit orifice, and an actuator assembly. The difference between the first stroke and the second stroke is accommodated through flexure of a flexing member in the actuator assembly. The first composition includes microcapsules and the second composition includes a volatile solvent.

Dispensers for dispensing microcapsules

A dispenser for applying at least two compositions, the dispenser including at least two reservoirs for storing the at least two compositions, at least two pumps for pumping the at least two compositions, a premix chamber containing a mixing element for mixing the two compositions, at least two channels for delivering the compositions from the reservoirs to the premix chamber, an exit orifice, optionally a swirl chamber, and an actuator.

A dispenser for applying at least two compositions, the dispenser including at least two reservoirs for storing the at least two compositions separately, at least two pumps for pumping the at least two compositions, an optional premix chamber for mixing the two compositions before dispensing, at least two channels for delivering the compositions from the reservoirs to the premix chamber or swirl chamber, an exit orifice, an actuator, and a lever assembly for reducing the actuation force required to activate the two pumps; wherein the first composition includes microcapsules and the second composition includes a volatile solvent.

A trigger pump sprayer in combination with a liquid dispensed from the sprayer. The trigger sprayer provides for efficacious particle size distributions of the liquids, when sprayed under non-ideal conditions. Non-ideal conditions include only partial strokes of the trigger, rather than full strokes and relatively slow trigger strokes. A bimodal distribution of particle sizes is obtained under two different operating conditions. The sprayer/liquid combination according to the present invention compresses the difference between the two modes, without requiring undue work by the operator. The advantageous particle size distribution difference is accomplished by using a precompression piston which reciprocates in response to trigger strokes, and selecting a liquid having appropriate properties to correspond to the trigger pump operating characteristics.

Trigger pump sprayer

A trigger pump sprayer in combination with a liquid dispensed from the sprayer. The sprayer is suitable for dispensing liquid from a reservoir, through a nozzle into particles. The trigger sprayer provides for efficacious particle size distributions of the liquids, when sprayed under non-ideal conditions. Non-ideal conditions include only partial strokes of the trigger, rather than full strokes and relatively slow trigger strokes. The trigger sprayer advantageously delivers a particle size distribution suitable for liquids having particular rheological properties. The advantageous particle size distribution difference is accomplished by using a precompression piston which reciprocates in response to trigger strokes, and selecting a liquid having appropriate properties to correspond to the trigger pump operating characteristics.

Trigger pump sprayer having favorable particle size distribution with specified liquids

Portion of a sprayer shroud

Sprayer bottle

Sprayer shroud

Nozzle Assembly

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Morden, United Kingdom

James Samuel Richardson