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:
Apr. 30, 1996
Filed:
Feb. 04, 1994
Winfried Laubach, Oberhausen, DE;
Thomas Gerlach, Neukirchen-Vluyn, DE;
Man Gutehoffnungshutte Aktiengesellschaft, Oberhausen, DE;
Abstract
A sealing medium seal for sealing the rotary drum of a drum-shaped furnace against the stationary charging device and the downstream, stationary discharge chamber, in order to prevent infiltrated air from being drawn into the process space and toxic flue gases from surging out. A double seal is provided including wearable individual sections of the sealing ring, which are equipped with a circumferential groove, with a hole, and with a sleeve for the sealing medium connection, and are arranged displaceably between two flanges as well as of a pneumatic, deformable, one-part sealing element, to which pressurized medium is admitted via a connection. The two sealing elements are guided in a chamber formed by two side flanges and a closing flange, as a result of which the sealing elements are completely sealed both in the radial direction and in the axial direction.