Apparatus for producing a mixture from two or more plastic compo

Details Apparatus for producing a mixture from two or more plastic compo Apparatus for producing a mixture from two or more plastic compo

1983-11-02

1985-03-19

Coe, Philip R.

Agitating

Having interrelated feed and discharge means

Plural feed or discharge means

366176, 366341, 422133, 1376254, 137563, B01F 504

Patent

active

045055920

ABSTRACT:
A mixing apparatus for multi-component plastics, in particular polyurethane, possesses a mixing chamber (2) with inlet apertures (3) and (4) for the individual plastic components and an outlet aperture (8) for the mixture. In the mixing chamber, a control element (5), which has the same cross-section as the chamber and possesses overflow channels (6) and (7), can be moved to and fro for controlling the component streams. In order to avoid pressure peaks or pressure surges in the transport of the components when the control element passes from the closed position to the mixing position and vice versa, and to provide improved accuracy of metering, the inlet apertures in the inner wall of the mixing chamber, and the corresponding areas of the shell of the control element between its end face (13) and the overflow channels, are matched with one another with regard to their size.

REFERENCES:
patent: 862130 (1907-08-01), Bonte
patent: 2233871 (1941-03-01), Parsons
patent: 3512542 (1970-05-01), Hansen
patent: 3630230 (1971-12-01), Stahle
patent: 3706515 (1972-12-01), Keuerleber et al.
patent: 4226543 (1980-10-01), Schluter
patent: 4314963 (1982-02-01), Boden et al.
patent: 4344919 (1982-08-01), Kelterbaum
patent: 4348116 (1982-09-01), Bordas
patent: 4379122 (1983-04-01), Taubenmann

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