Gm Global Technolgoy Operations, Inc.

Metal Casting Technology, Incorporated

Scott W Biederman

Thomas Arthur Perry

Michael J Walker

Reinhold Ludwig

Sergey N Makarov

Mark A Osborne

Timothy Scott Rider

Brian M Foley

Joseph C Michalik

Patrick E Dodd

Thomas Bonaventura

An investment mold slurry curtain apparatus includes a slurry curtain of a slurry fluid, the slurry curtain having a length and a thickness, the length substantially greater than the thickness. The apparatus also includes an outlet configured to dispense the slurry fluid and form the slurry curtain. The investment mold slurry curtain apparatus may include and be described as an investment mold slurry coating apparatus including a conduit configured to receive a flow of a slurry fluid and an outlet operatively coupled to the conduit, the outlet configured to dispense the flow of the slurry as a curtain of the slurry.

Investment mold slurry curtain apparatus

A procedure for centrifugally casting a shorted structure around induction motor rotors is described. The method is commonly applied to a plurality of rotors disposed and arranged for rotational balance and supported on a suitable support, or optionally, on a plurality of supports arranged in layered fashion about a common rotational axis. The method comprises forming a wax representation of the shorted structure around a lamination stack; mounting a plurality of such lamination stacks in a mounting fixture and-attaching a suitable gating and runner system; forming an investment by coating the structure with refractory followed by melting out the wax; casting molten metal into the investment while it is rotating and aligning the mold to allow the centrifugal force generated to promote mold filling; and, continuing to rotate the investment until solidification is substantially complete.

Centrifugally-cast shorted structure for induction motor rotors

A level sensing system and method for determining the level of a conductive material in a casting mold are disclosed, wherein the level sensing system a drive circuit and an inductive component disposed adjacent to the casting mold, and a position of the conductive material in the casting mold may be determined by a change in an electrical characteristic of the drive circuit.

Non-invasive real-time level sensing and feedback system for the precision sand casting process

The invention involves the real-time, NIR-spectroscopic, closed-loop control of the blowing agent content of polymer beads used to make lost foam casting patterns.

Online control of blowing agent content of polymer beads for making lost foam patterns

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New Boston, NH, United States of America

Scott W Biederman