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. 21, 1992
Filed:
Dec. 21, 1990
Raimund Bruckner, Engenhahn, DE;
Hans Rothfuss, Taunusstein, DE;
Didier-Werke AG, Wiesbaden, DE;
Abstract
The present invention is drawn to sealing structure for use in guiding molten metal from a metallurgical vessel and the seal thereof. The sealing structure includes first and second generally tubular refractory components one of which extends coaxially within the other with a clearance established therebetween. One of the components also has an annular groove therein confronting the other component at a sealing location. An open-ended elastically deformable spring ring is disposed in the annular groove and is self-biased into sealing engagement with a surface of the component that the annular groove confronts. The spring ring has a semi-annular main body and overlapped end portions extending from the main body.