Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Reexamination Certificate
2002-12-12
2008-09-16
Cooley, Charles E (Department: 1797)
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
Reexamination Certificate
active
07425090
ABSTRACT:
An apparatus for dispersing and melting flowable substances includes axis-parallel supporting shafts rotatable in the same direction. Screw elements with the same direction of thread are fitted on the shafts so as to rotate in unison and intermesh. The screw elements have screw portions disposed at a progressive angular offset from each other with the same sense of rotation so as to form faces. The screw elements are of single- or double-flighted form. The axial length of each screw element is a fraction of the pitch of the screw crest of each screw portion.
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International Search Report mailed Apr. 4, 2003 in PCT International Application No. PCT/EP02/14105 (2 pages).
Blach Verwaltungs GmbH & Co. KG
Cooley Charles E
Flynn ,Thiel, Boutell & Tanis, P.C.
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