Dispensing – With discharge assistant – With movable nozzle interconnected therewith
Patent
1976-09-30
1978-05-16
Knowles, Allen N.
Dispensing
With discharge assistant
With movable nozzle interconnected therewith
222385, G01F 1106
Patent
active
040894428
ABSTRACT:
A finger-operated spray pump assembly including a compression chamber, a primary piston and a secondary piston slidably fitted inside the compression chamber, a spring fitted inside the secondary piston for urging the secondary piston toward the primary piston, and a valve slidably connected to the secondary piston.
REFERENCES:
patent: RE28366 (1975-03-01), Pechstein
patent: 3761022 (1973-09-01), Kondo
Hafele Robert X.
LoMaglio Lewis C.
Ethyl Corporation
Johnson Donald L.
Knowles Allen N.
Ray David L.
Sieberth John F.
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