Raymond A Monroe

US Patent:

47367881, Apr 12, 1988

Filed:

Jul 28, 1987

Appl. No.:

7/078783

Inventors:

John M. Svoboda - Arlington Heights IL
Raymond W. Monroe - Rochester Hills MI

Assignee:

Casteel Technology Associates, Inc. - DesPlaines IL

International Classification:

B22C 908

US Classification:

164363

Abstract:

A bottom circular tray, a circular top cap and one or more circular disks are coupled thereto, the disks, the top cap and the bottom tray having a common central sprue or cylinder. The plurality of disks form an ascending spiral path from the bottom tray to the top cap. Liquid metal will flow through the central sprue to the bottom tray and up through the ascending spiral path to the top cap and into the mold cavity to form an inclusion free casting.

US Patent:

47859792, Nov 22, 1988

Filed:

Jul 28, 1987

Appl. No.:

7/078782

Inventors:

John M. Svoboda - Arlington Heights IL
Raymond W. Monroe - Prospect Heights IL

Assignee:

Casteel Technology Associates, Ltd. - Des Plaines IL

International Classification:

B22D 4108

US Classification:

222591

Abstract:

A flow control nozzle for bottom-pour ladles having a castellated entry and cruciform exit to inhibit the break up of an exiting liquid metal stream from a bottom-pour ladle while using a conventional stopper-rod to control the flow of the liquid metal stream to a mold. The nozzle is formed of a fused silica, sintered calcia or other appropriate refractories to inhibit nozzle blockage.