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:
May. 31, 1983
Filed:
Oct. 06, 1980
Applicant:
Inventor:
Helge C Kartman, Copenhagen, DK;
Assignee:
F. L. Smidth & Co., Cresskill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 57 ; 241117 ;
Abstract
A nozzle ring assembly for use around a circular grinding path of a roller mill of the kind comprising a grinding table which is rotatable about a vertical axis, and grinding rollers urged against the grinding table. The nozzle ring assembly comprises a nozzle ring with circumferentially spaced guide vanes for directing air, in use, over the grinding path in a direction with a component substantially tangential to the grinding path. The nozzle ring also has a set of annular guide vanes which are disposed one above the other for directing air, in use, substantially horizontally over the grinding path.