The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2005
Filed:
Jul. 18, 2002
Norbert Patzelt, Beckum, DE;
Thomas Schmitz, Oelde, DE;
Uwe Schuh, Hamm, DE;
Wolfgang Schwab, Duisburg, DE;
Joachim Kudras, Kamen, DE;
Tölke Heinz, Oelde, DE;
Norbert Patzelt, Beckum, DE;
Thomas Schmitz, Oelde, DE;
Uwe Schuh, Hamm, DE;
Wolfgang Schwab, Duisburg, DE;
Joachim Kudras, Kamen, DE;
Tölke Heinz, Oelde, DE;
Polysius AG, Beckum, DE;
Abstract
A shaft preheater to achieve an improved adaptation of layer height to particle size spectrum of material to be preheated. The shaft preheater includes a plurality of shafts for receiving lumpy material, an arrangement for filling the individual shafts with the lumpy material to be preheated and means for limiting the layer height in the shafts. The means for limiting the layer height include a needle valve and have an arrangement for coarse adjustment and an arrangement for fine adjustments.