F27D 3/08

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9851150 Method and arrangement for feeding fine-grained matter to a concentrate burner or a matte burner of a suspension smelting furnace and controlling means and computer program productSep 18, 13Dec 26, 17OUTOTEC (FINLAND) OY
9708541 Multi-level furnace and method for thermal treatment of a material flowNov 08, 13Jul 18, 17THYSSENKRUPP INDUSTRIAL SOLUTIONS AG
9470456 Method and device for charging coal-containing material and iron carrier materialMay 09, 12Oct 18, 16PRIMETALS TECHNOLOGIES AUSTRIA GMBH
9394192 Batch-charging machine with removable head for submerged batch-chargingMar 04, 13Jul 19, 16SAINT-GOBAIN ISOVER
9180521 Method for producing granular metallic ironAug 26, 11Nov 10, 15KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.), Kobe Steel, Ltd.,
9074768 Method and device for delivering deliverable materialsJan 14, 10Jul 07, 15Not available
8671854 Shaft seal for pyrolytic waste treatment systemApr 10, 09Mar 18, 14APS IP HOLDING LLC
6426969 Discharge screw for moving hearthJul 10, 01Jul 30, 02SMS DEMAG S.p.A.
6280181 Withdrawal device for a shaft furnaceAug 16, 00Aug 28, 01VOEST-ALPINE INDUSTRIEANLAGENBAU GMBH & CO.
5863197 Solid flight conveying screw for furnaceApr 25, 97Jan 26, 99The International Metals Reclamation Company, Inc.
4912301 Apparatus and method for the production of oxides of leadOct 17, 88Mar 27, 90OXIDE TECHNOLOGY CORPORATION, A CORP. OF DELAWARE
4702695 Housing section for a twin screw shaft machineOct 30, 86Oct 27, 87Not available
4603248 Thermal conditionerJul 21, 83Jul 29, 86SIENNATECH INCORPORATED, SYM-TEK SYSTEM, INC.,,
4430057 Calciner screw constructionFeb 18, 82Feb 07, 84Selas Corporation of America
4222987 Muffle calciner having counter-rotating screw conveyorsJun 26, 78Sep 16, 80CITIES SERVICE COMPANY, A DE CORP., MAPICO, INC.,