Vacuum pug mill

Details Vacuum pug mill Vacuum pug mill

1995-06-07

1998-02-10

Cooley, Charles E.

Agitating

Rubber or heavy plastic working

With specified vent means

366 99, 366139, 425203, B01F 1306, B28C 122

Patent

active

057161305

ABSTRACT:
A pug mill having a housing including a drive and bearings for rotatably mounting and driving a cantilevered shaft extending from one side of the housing. Associated with the housing and concentrically arranged about the shaft are, in seriatim, a vacuum chamber, a mixing chamber, an extruder and a reduction cone. A port about the shaft is positioned between the vacuum chamber and the mixing chamber. A source of vacuum maintains a vacuum within the vacuum chamber and creates a vacuum within the mixing chamber by air passing through the port. An auger associated with the shaft positioned within the extruder forces clay toward the reduction cone. This creates a seal for maintaining vacuum within the mixing chamber and extrudes cylindrical blocks of conditioned clay without significant air bubbles.

REFERENCES:
patent: 2078565 (1937-04-01), Durst et al.
patent: 2572063 (1951-10-01), Skipper
patent: 2868144 (1959-01-01), Ambrette
patent: 3493031 (1970-02-01), Williams, Jr. et al.
patent: 3946996 (1976-03-01), Gergely
patent: 4322169 (1982-03-01), Wood
patent: 4382404 (1983-05-01), Hawley et al.
patent: 5106198 (1992-04-01), Muller
patent: 5108711 (1992-04-01), Chszaniecki

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