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:
Jun. 29, 1993
Filed:
Apr. 11, 1990
Didier-Werke AG, Wiesbaden, DE;
Abstract
A regulating device for regulating the flow of molten metal from metallurgical vessel includes an inner tubular part which is fixed to the metallurgical vessel and defines at least one through-hole, and a movable outer tubular part rotatably and/or slidably mounted to the metallurgical vessel and extending around the tubular inner part. The tubular outer part terminates at a bottom edge constituted by a contiguous land extending around the tubular inner part. The tubular outer part can be slid and/or rotated between open and closed positions at which the through-hole of the tubular inner part is opened and closed, respectively. To prevent plugs of molten metal from hardening in the at least one through-hole of the tubular inner part, the bottom edge of the tubular outer part is designed so that a portion of the land thereof passes across the at least one through-hole when the tubular outer part is moved between the open and closed position. More specifically, at the closed position, a portion of the land constituting the bottom edge is located to one side of the through-hole with respect to the longitudinal axis of the tubular inner part while, at the open position a portion of the land constituting the bottom edge is located to the other side of the through-hole with respect to the longitudinal axis of the tubular inner part.