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:
Dec. 20, 1988
Filed:
Jun. 19, 1987
Gotthardt Blasczyk, Beckum, DE;
Hubert Eickholt, Beckum, DE;
Otto Heinemann, Ennigerloh, DE;
Norbert Bredenholler, Oelde, DE;
Ludger Kimmeyer, Beckum, DE;
Peter Tiggesbaumker, Oelde, DE;
Michael von Seebach, Ennigerloh, DE;
Heinrich Henne, Ennigerloh, DE;
Krupp Polysius AG, Beckum, DE;
Abstract
The invention relates to a sifter in which the spiral for delivery of the air for sifting is divided into a plurality of channels lying one above another in which elements for setting the quantity of sifting air delivered to the individual channels are provided. In such a sifter the quantity of sifting air in the individual regions of the sifting chamber can be optimally adapted to the requirements, which leads to a substantial improvement in the degree of separation.