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.

Date of Patent:
Mar. 17, 1987

Filed:

Mar. 21, 1986
Applicant:
Inventor:

Robert Fricker, Unterageri, CH;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; F16K / ; C21C / ;
U.S. Cl.
CPC ...
222600 ; 222512 ; 251174 ; 266271 ;
Abstract

A sliding closure unit includes an upper stationary refractory plate to be mounted on a metallurgical vessel, a movable refractory plate sealed against the upper stationary refractory plate, a slide unit for moving the movable refractory plate in a direction of movement between an open position with discharge openings in the movable refractory plate and the upper stationary refractory plate in alignment and a closed position with the discharge openings out of alignment, a lower stationary refractory plate mounted beneath the movable refractory plate, and tensioning devices for pressing the lower stationary refractory plate against the movable refractory plate. Guide members are provided for relieving the pressure of the tensioning devices on the lower stationary refractory plate upon movement of the movable refractory plate to the closed position, thereby enabling replacement of the lower stationary refractory plate. The guide members are provided on the slide unit and extend in the direction of movement.


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