Two-chamber metering dispenser

Details Two-chamber metering dispenser Two-chamber metering dispenser

1998-08-14

1999-12-28

Derakshani, Philippe

Dispensing

Plural sources, compartment, containers and/or spaced jacket

With discharge assistant for each source

222260, B67D 552

Patent

active

060069481

ABSTRACT:
A two-chamber metering dispenser 1 for liquid and/or paste-like media is equipped with two containers 2, 3 made of plastic, which are arranged in parallel positions next to one another and are provided each with a hand-operated metering pump and with a follower piston. The follower piston is tightly in contact over the entire circumference of the inner surface of the containers. In order to optimally utilize the hollow space in the case of an elliptical outer cross-sectional shape, and to guarantee a tight contact between the follower piston and the inner surfaces of the container walls, the two containers 2, 3 form a common outer jacket 10, which has an elliptical cross-sectional shape, and the containers are separated from one another by two middle walls 14, 15, which are arched against each other symmetrically to the short axis 12 of the ellipse.

REFERENCES:
patent: 4438871 (1984-03-01), Ecker
patent: 4949874 (1990-08-01), Fiedler et al.
patent: 4981241 (1991-01-01), Keller
patent: 5611463 (1997-03-01), Favre

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