| US 7,594,530 B1 | ||
| Orbital foamed material extruder | ||
| Dennis S. Tucker, Huntsville, Ala. (US) | ||
| Assigned to The United States of America as represented by the Administrator of the National Aeronautics and Space Administration, Washington, D.C. (US) | ||
| Filed on Nov. 19, 2007, as Appl. No. 11/942,322. | ||
| Int. Cl. B22D 27/00 (2006.01) | ||
| U.S. Cl. 164—79 [75/415] | 15 Claims |
| 1. A process for producing foamed material in space comprising the steps of:
a) rotating said material to simulate the force of gravity;
b) heating said rotating material until it is molten;
c) extruding said rotating, molten material;
d) injecting gas into said extruded, rotating, molten material to produce molten foamed material; and
e) allowing said molten foamed material to cool to below melting temperature to produce said foamed material.
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