Extended spray pump

Details Extended spray pump Extended spray pump

1980-10-31

1982-04-20

Scherbel, David A.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222340, 222385, B05B 1102

Patent

active

043255000

ABSTRACT:
A finger operated accumulative pressure spray pump which has two opposing and coaxial chambers. The upper chamber is fitted with an upper and middle piston urged upwardly by a spring, and the lower chamber is fitted with an opposing piston urged upwardly by a spring. A port connects the space between the two upper pistons with the external atmosphere.

REFERENCES:
patent: 3761022 (1973-09-01), Kondo
patent: 3921861 (1975-11-01), Kondo
patent: 4051983 (1977-10-01), Anderson
patent: 4154374 (1979-05-01), Kirk, Jr.
patent: 4228931 (1980-10-01), Ruscitti et al.

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