Dispenser for pasty compositions

Details Dispenser for pasty compositions Dispenser for pasty compositions

1988-07-15

1990-02-27

Rolla, Joseph J.

Dispensing

Resilient wall

Supply container delivering to receiving chamber

222209, 222213, 222357, 222494, B65D 3700

Patent

active

049038672

ABSTRACT:
Dispensers for pasty compositions having a housing (1) with a piston (2) which is displaceable only in the emptying direction and an actuating handle (H) which is developed on a head piece (5) which can be pressed bellows-like in the direction towards the piston (2) and has a dispenser outlet opening (O) from which there extends, directed inwards, a tube (7) whose inner mouth-end (7") dips freely into the pasty composition in every position of the bellows (B). A structural shape which is simple to manufacture and nevertheless dependable in operation, comprises a flap valve (9) with passage opening lying in the direction of the tube (7) (arrow z), below the inner mouth-end (7") of the tube (7), in the cover (8) of the housing (1) from which a mounting collar (6) for the bellows (B) extends.

REFERENCES:
patent: 3300106 (1967-01-01), Chmela
patent: 3768705 (1973-10-01), Spatz
patent: 3833154 (1974-09-01), Markowitz
patent: 4154371 (1979-05-01), Kolaczinski et al.
patent: 4236656 (1980-12-01), Perrella
patent: 4394939 (1983-07-01), Thor et al.
patent: 4413759 (1983-11-01), Mettenbrink
patent: 4438871 (1984-03-01), Eckert
patent: 4474313 (1984-10-01), Sieverding
patent: 4511068 (1985-04-01), Bossina
patent: 4538747 (1985-09-01), von Schuckmann
patent: 4545510 (1985-10-01), Mettenbrink

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