Simultaneous pump dispenser

Details Simultaneous pump dispenser Simultaneous pump dispenser

1997-08-11

1999-01-12

Kaufman, Joseph A.

Dispensing

Processes of dispensing

222136, 2221453, 2223831, 239304, 239306, 239333, B67D 552

Patent

active

058575910

ABSTRACT:
Simultaneous pump dispenser of the trigger-sprayer type has a single container with separate liquid compartments. Side-by-side main cylinders in the dispenser body have vent cylinders there-adjacent. Pistons in all cylinders are worked together by a piston
ozzle assembly separately to pump the liquids and vent the containers. A manifold in the top of the container connects supply tubes and vents in the compartments to the risers and vent passageways for the respective main and vent cylinders. The discharge may be separate spray orifices, a single spray orifice combining the liquids or a single foaming orifice.

REFERENCES:
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patent: 3760986 (1973-09-01), Castner et al.
patent: 4355739 (1982-10-01), Vierkotter
patent: 4826048 (1989-05-01), Skorka et al.
patent: 4902281 (1990-02-01), Avoy
patent: 5009342 (1991-04-01), Lawrence et al.
patent: 5152431 (1992-10-01), Gardner et al.
patent: 5169029 (1992-12-01), Behar et al.
patent: 5398846 (1995-03-01), Corba et al.
patent: 5433350 (1995-07-01), Graubart
patent: 5535950 (1996-07-01), Barriac et al.
patent: 5562250 (1996-10-01), O'Neill
patent: 5609299 (1997-03-01), Foster et al.

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