Patent ID: 8322631
Filing Date: 2012-12-04
Classification: B05B

Abstract:
1. A trigger sprayer for use with a spray system, said trigger sprayer comprising: an articulable trigger, a pump operably connected to said trigger, whereby articulation of said trigger about a pivot from a forward rest position to a rearward dispensing position, under a peak force of 10 to 30 Newtons at 30 partial strokes per minute from said forward rest position to a position one-third of the distance towards said rearward dispensing position, said force being measured 40 mm from said pivot, whereby articulation of said trigger causes corresponding reciprocation of a piston in said pump, said reciprocation of said piston drawing liquid from a reservoir, said liquid having a surface tension of 20 to 75 mNewtons/meter, a kinematic viscosity of 8.7 E-4 to 0.0015 Pascal seconds at 25 degrees C., and a dynamic viscosity of 0.87 to 1.15 centipoises at 25 degrees C., said liquid being discharged through a nozzle into particles; said particles comprising a volume ranging from 0.75 to 1.5 ml per full stroke of said trigger, said particles having a a Dv(50) particle size distribution of 100 to 150 microns, and/or a Dv(90) particle size distribution of 200 to 300 microns.