Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 16, 2008
Patent Application Number
10503142
Date Filed
December 12, 2002
Patent Primary Examiner
Patent 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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