Refractory ceramic stopper, apparatus for support thereof, and a

Details Refractory ceramic stopper, apparatus for support thereof, and a Refractory ceramic stopper, apparatus for support thereof, and a

1992-09-23

1994-04-19

Kastler, Scott

Metallurgical apparatus

Means sealing or opening aperture in vessel

222597, 222602, B22D 4118

Patent

active

053039050

ABSTRACT:
A refractory ceramic stopper has therein a recess including an annular outwardly enlarged portion defining a stop surface. A stopper rod inserted into the recess in the stopper has a support surface. A plurality of spreadable members having opposite ends are positioned about the stopper rod and are inserted therewith into the recess in the stopper. The spreadable members are spread outwardly such that they enter the enlarged portion of the recess in the stopper with first ends of the spreadable members confronting the stop surface of the stopper and with second ends of the spreadable members confronting the support surface of the stopper rod. Thereby the spreadable members lock the stopper onto the stopper rod.

REFERENCES:
patent: 1843175 (1932-02-01), Sears
patent: 2005311 (1935-06-01), Belding
patent: 2587110 (1952-02-01), Carter

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