TRIGGER-TYPE PROPORTIONER Russian patent published in 2015 - IPC B05B11/00 

FIELD: transport, distribution.

SUBSTANCE: invention relates to manual fluid proportioner, preferably of trigger-type. Proposed device comprises container with neck and inner compartment to keep fluid to be proportioned. Besides it comprises proportioning head attached to said neck and including frame with pressure chamber. Also, it includes hand-drive piston to slide in pressure chamber between initial position whereat pressure chamber volume is maximum and final position whereat it is minimum. It comprises also proportioning channel to be connected to pressure chamber for transfer of fluid to be proportioned and built-in valve secured to said frame and/or container neck. Said valve comprises suction channel and at least one flexible suction nose to stop said suction channel to make valve suction means for flow of fluid from inner compartment into pressure chamber at suction phase and to prevent fluid backflow at proportioning. Besides, it includes circular plug fitted radially outside said suction channel and flexible flange extending radially outward from suction channel. Flange supports said plug to make valve proportioning means to allow fluid to flow from pressure chamber to proportioning channel at proportioning and to prevent fluid return from proportioning channel to pressure chamber at suction.

EFFECT: efficient proportioning.

16 cl, 12 dwg