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:
Jan. 17, 1995
Filed:
Jul. 13, 1992
Ludger Lohnherr, 4740 Oelde, DE;
Ludger Kimmeyer, 4720 Beckum 2, DE;
Walter Holz, 4720 Beckum 2, DE;
Bernhard Zigan, 4724 Diestedde, DE;
Werner Schoneich, 4720 Beckum, DE;
Other;
Abstract
Fresh raw material is delivered to a crushing zone for crushing. Beforehand, fine particles are separated from the raw material by means of an airstream and directed into the housing of the crusher where they are entrained by an independent gas stream that conveys crushed fines upwardly to a separator also located within the housing. The separator removes fine particles from the system and returns the remaining, relatively course tailings material to the crushing zone through a tailings return chute. At least a portion of the material exiting the tailings return chute is subjected to a secondary separation treatment to capture additional quantities of fine particles before entering the crushing zone. The captured tailings material may be mixed with the fresh raw material else reintroduced into the top of the separator to receive the secondary separation treatment.