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:
Oct. 23, 2001
Filed:
Jun. 08, 2000
Giovanni De Marchi, Genoa, IT;
Francesco Perugi, Santa Margherita Ligure, IT;
SMS Demag S.p.A., , IT;
Abstract
A rotary hearth furnace, in particular for the treatment of minerals or oxidized materials, includes a toroidal chamber wherein the bottom wall, i.e., the hearth, rotates as to the rest of the chamber the hearth includes a refractory material layer supported on a frame which includes the tracks cooperating with the wheels, placed on the ground, for the sliding and/or driving of said hearth. The frame includes several girts radial as to the hearth, angularly equidistant from each other, and at least two circular sliding girders, positioned next to the outer and inner peripheral edge of said hearth. The sliding girders are in contact with the hearth sliding and/or driving wheels through the suitable tracks, and the wheels are angularly equidistant from each other with the same angular pitch of the radial girts.