| US 7,500,298 B2 | ||
| Blast head for loosening or removing scale on a metal surface | ||
| Franklin Sadler Love, III, Columbus, N.C. (US); Derek S. Kozlowski, Chesney, S.C. (US); and Gregory S. Sill, Inman, S.C. (US) | ||
| Assigned to Sadler Love & Associates, Inc., Columbus, N.C. (US) | ||
| Filed on Feb. 14, 2005, as Appl. No. 11/57,564. | ||
| Application 11/057564 is a continuation in part of application No. 09/783353, filed on Feb. 14, 2001, granted, now 6,854,169. | ||
| Claims priority of provisional application 60/182327, filed on Feb. 14, 2000. | ||
| Prior Publication US 2005/0136811 A1, Jun. 23, 2005 | ||
| Int. Cl. B21B 45/04 (2006.01); B24B 1/00 (2006.01) | ||
| U.S. Cl. 29—81.01 [29/81.09; 451/102] | 32 Claims |
| 1. A blast head for loosening scale on a metal surface using media, said blast head comprising:
a chamber defining an inlet and an outlet, said inlet sized for the metal surface to pass therethrough into the chamber and
said outlet sized and positioned relative to the inlet for the metal surface to pass therethrough and out of the chamber;
a supply of media under a fluid pressure;
at least one nozzle having an inlet and a outlet, said inlet in fluid communication with the supply of media and said outlet
positioned in the chamber and in proximity to the metal surface;
a deceleration zone positioned in the chamber and on an opposite side of the chamber from the outlet; and
a media outflow zone positioned at a bottom of the chamber;
whereby said media is propelled by the fluid pressure through the nozzle and out of the outlet in a spray onto the metal surface
such that the spray loosens the scale on the metal surface, said deceleration zone decelerates any errant media missing the
metal surface to limit damage to the blast head, and said media outflow zone captures falling media.
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