Agitator device

Details Agitator device Agitator device

1986-01-23

1987-06-30

Simone, Timothy F.

Agitating

Rubber or heavy plastic working

Stationary mixing chamber

261 87, 261 93, 366102, 366104, 366169, 366295, 366308, 366326, B29D 2702

Patent

active

046766545

ABSTRACT:
An agitator device for charging gas into PUR-components and for the homogenization of the PUR-components and the gas for the production of a foam material includes a pressure vessel for containing the mixture of components and gas with a stirring device extending into the body of the mixture. The stirring device includes a shaft which can be driven in opposite directions. First and second stirring elements are located on the shaft. In one direction of rotation only the first stirring elements operate to charge gas into the PUR-components and when the shaft is driven in the other direction both the first and second stirring elements operate to homogenize the mixture. In one arrangement, due to the direction of rotation, the second stirring elements can be pivotally displaced between a stirring position and an inactive position. In another arrangement the second stirring elements can be selectively connected to the shaft by a clutch so that the clutch engages the stirring elements for rotation in only one rotational direction of the shaft.

REFERENCES:
patent: 2684233 (1954-07-01), Payne
patent: 2992182 (1961-07-01), Elzinga et al.
patent: 4240990 (1980-12-01), Inhofer et al.
patent: 4464055 (1984-08-01), Mercatoris et al.
patent: 4576089 (1986-03-01), Chauvin
patent: 4610547 (1986-09-01), Bennett et al.
Kunstsoffe 74 (1984) 11--pp. 659-660.

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