A spray pump

Details A spray pump A spray pump

B - Operations, Transporting

65

D

222/78

B65D 47/34 (2006.01) B05B 11/00 (2006.01)

Patent

CA 2029935

The pump comprises: a main cylinder (24); a main plunger (12) urged by a first spring (62) and extended by a hollow stem (10) and having a valve seat therein; a secondary cylinder (52) comprised within the main cylinder (24); a secondary plunger (64) urged by a second spring (70) having an upper extension (66) and being provided with a cavity (72) which is closed in the proximity of the end (68) engageable with the valve seat; while it is open at the lower end thereof, maintaining communication with the space (54).

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