Pump type dispenser with continuous flow feature

Details Pump type dispenser with continuous flow feature Pump type dispenser with continuous flow feature

1977-05-10

1979-11-13

Reeves, Robert B.

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222341, 239321, 239333, 417541, 417552, B05B 1102

Patent

active

041740564

ABSTRACT:
A pump type dispenser for dispensing a spray of liquid has a container for containing the liquid to be dispensed, a piston-cylinder device for drawing liquid out of the container and pressurizing it, a dispensing head into which the pressurized liquid is pumped, with a free piston chamber therein in which is a free piston spring loaded toward the direction from which the pressurized liquid comes, and a nozzle opening out of the free piston chamber through the dispensing head. A check valve between the piston-cylinder device and the free piston chamber blocks return of the fluid once it has been forced into the free piston chamber, so that the free piston acts on the liquid in the free piston chamber to dispense it in a spray through the nozzle while the piston-cylinder device recovers from its actuated to its unactuated position and the next actuation thereof is started.

REFERENCES:
patent: 3061202 (1962-10-01), Tyler
patent: 3161329 (1964-12-01), Fedit et al.
patent: 3399836 (1968-09-01), Pechstein
patent: 3746260 (1973-07-01), Boris
patent: 3923250 (1975-12-01), Boris
patent: 4079865 (1978-03-01), Kutick

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