Device for preparing plastics material

Details Device for preparing plastics material Device for preparing plastics material

2007-11-06

2007-11-06

Davis, Robert (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

With separate and distinct upstream agitating or kneading means

With cutting, severing or comminuting means

C241S186500, C366S186000, C366S314000, C366S316000, C425S203000, C425S204000, C425S205000

Reexamination Certificate

active

10547899

ABSTRACT:
A device for the preparation of plastics material, in particular thermoplastic plastics material, has a receiving container (1) for the material, the interior of the receiving container (1) having tools (21) provided therein which are arranged on a carrier disc (9). The tools are driven by a shaft (4) for rotation about the, in particular vertical, axis (8) of the shaft (4). At least one screw (17) is provided for the removal of the material out of the receiving container (1). The screw housing (16) has a feed opening (27) which is connected with respect to flow to a discharge opening (15) in the container (1), which discharge opening (15) is situated at a lower level than the carrier disc (9) and the tools (21) carried by it. Further moved tools (12), which convey the material into the discharge opening (15), are provided in the receiving container (1) below the carrier disc (9). The carrier disc (9) comprises at least one aperture (36) which connects the space (26) above the carrier disc to the space (10) below it, in order to divert water vapor and/or gaseous substances out of the space (10). The apertures (36) are situated close to the axis (8) and close to the trailing edges (37) of the tools (21) during the rotation of the carrier disc (9).

REFERENCES:
patent: 5783225 (1998-07-01), Bacher et al.
patent: 6719454 (2004-04-01), Bacher et al.
patent: 6883953 (2005-04-01), Bacher et al.
patent: 7137802 (2006-11-01), Bacher et al.
patent: 2432345 (1976-01-01), None
patent: 2844164 (1980-04-01), None
patent: 0625373 (1994-11-01), None
patent: WO 00/74912 (2000-12-01), None
patent: WO 03/103915 (2003-12-01), None

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