Agitating – Rubber or heavy plastic working – With specified vent means
Patent
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.
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patent: 2572063 (1951-10-01), Skipper
patent: 2868144 (1959-01-01), Ambrette
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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
Cooley Charles E.
McConaghy John D.
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