Viscous fluid dispenser

Details Viscous fluid dispenser Viscous fluid dispenser

1988-07-08

1990-02-27

Rolla, Joseph J.

Dispensing

With discharge assistant

Plural

222259, 222383, 222387, G01F 1100, B67D 542

Patent

active

049038680

ABSTRACT:
A viscous fluid dispenser having a significant decrease in the number of parts constituting the dispenser and thus having a simplified structure which can be easily assembled and which can function satisfactorily is provided. A first embodiment of the dispenser includes only five parts: a cylindrical body integrally formed with a top plate, a movable bottom lid slidably fitted in a lower end of the cylindrical body, a piston slidably fitted in a cylinder of the top plate and having a discharge pipe, a push button having a discharge nozzle connected to the discharge pipe, and a spring for upwardly forcing the push button and piston. A first check valve for operating a suction hole of the top plate is integrally formed in the top plate, and a second check valve for operating the discharge pipe is integrally formed in the piston.

REFERENCES:
patent: Re31408 (1983-10-01), Czech et al.
patent: 3268123 (1966-08-01), Spatz
patent: 4301948 (1981-11-01), Czech et al.
patent: 4511068 (1985-04-01), Bossina
patent: 4643337 (1987-02-01), Heck et al.
patent: 4651904 (1987-03-01), Schuckmann
patent: 4685594 (1987-08-01), Czech

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