Device for spraying or dispensing fluid product in which product

Details Device for spraying or dispensing fluid product in which product Device for spraying or dispensing fluid product in which product

1991-11-13

1993-08-10

Kashnikow, Andres

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222375, B05B 1100

Patent

active

052341356

ABSTRACT:
A pump for dispensing or spraying a fluid product comprises a pump body delimiting a pump chamber in which slides a piston. The pump comprises a hollow plunger-rod having an outlet passage. The plunger-rod is coupled to the piston to actuate the piston and to enable escape of the product. The pump further comprises an aspiration chamber which communicates with the hollow plunger-rod and which is reduced in volume when the plunger-rod is depressed and increased in volume when pressure is removed from the plunger-rod. The aspiration chamber is delimited by the piston and the plunger-rod and the volume of the chamber is varied by relative sliding movement between the plunger-rod and the piston.

REFERENCES:
patent: 4017031 (1977-04-01), Kishi et al.
patent: 4434916 (1984-05-01), Ruscitti et al.
patent: 4640443 (1987-02-01), Corsette
patent: 5011046 (1991-04-01), Graf et al.
patent: 5092495 (1992-03-01), Andre
patent: 5096097 (1992-03-01), Lina

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