Device for spraying a fluid by means of a pump that is...

B - Operations – Transporting – 05 – B

Patent

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B05B 11/02 (2006.01) B05B 11/00 (2006.01)

Patent

CA 2101553

29 A B S T R A C T A device for spraying or dispensing a fluid, the device comprising: a single-acting pump having a capacity of less than 500 µl and provided with piston means actuated by a hollow push rod allowing fluid to flow therealong, said piston means sliding in a pump chamber that normally contains fluid to be sprayed or dispensed, to enable said fluid to be expelled; a pusher mounted on said push rod of the pump and communicating with said push rod to enable the fluid to escape; and rapid repetition actuator means having a moving portion for actuating the push rod repetitively; wherein the pusher is connected to said moving portion of the actuator means by a connection that does not leave play in the axial direction of the push rod.

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