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. 09, 1979
Filed:
Mar. 15, 1977
Applicant:
Inventor:
Harald Krogsrud, Gjettum, NO;
Assignee:
Elkem-Spigerverket A/S, Oslo, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55290 ; 55302 ; 55355 ; 55502 ; 55503 ; 55508 ; 55523 ; 55498 ;
Abstract
A gas purification device comprising substantially concentric chambers separated by a filter tube is disclosed. The filter tube forms a common wall between adjacent chambers. Gas enters one of the chambers, passes through the filter, and exits from the other chamber. The gas is filtered by passage through the permeable wall. The filter tube may be rotated as a unit about a central shaft to move the walls of the cylinder past cleaning means such as scrapers, brushes, vibrators or pressurized gas blasts. The apparatus has special application to the purification of high temperature waste gasses from industrial furnaces.