Flo-con Systems, Inc.

Gary R Polk

Patrick D King

George T Shapland

Randall L Stalter

A slide gate having an offset teeming orifice for use in a sequential sliding gate valve having asymmetrical means for inserting said gate along a direction of loading in which the slide plate has asymmetrical means for engaging the asymmetrical means for loading and thereby insure proper orientation of the gate when loading.

Non-reversible sliding gate, valve and method

A three plate non-reversible sliding gate system and tube holder where the plates and tube holder include modified corner configurations so as to preclude reverse loading of the system.

Sliding gate valve method and replaceable retractories

Disclosed is a sliding gate valve and clamp mechanism which permits the utilization of bandless refractory for the top plate, sliding gate, and the attachment of a replaceable collector to the sliding gate. The refractory is formed with curvilinear side edges tapered centrally toward the inter face portion between the top plate and sliding gate plate. Curvilinear edges are employed on both the stationary plate and the sliding gate, and desirably both have an identical exterior configuration, but optionally differ in the central portion where the well block nozzle is engaged by the stationary plate and where the collector is engaged by the sliding gate plate. Optionally a secondary sealing ring is employed to form a seal between the lower well nozzle and the top plate in a zero clearance environment. Also desirably the top plate and sliding gate plate may both be ground on both faces to provide parallelism and planarity of the refractory faces. In certain embodiments the stationary plate and slide gate are identical.

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Champaign, IL, United States of America

Gary R Polk