Patent Number: 7,913,742

Title: Integral blow tube and tamping pin

Abstract: An apparatus for the forming of sand cores adapted to convey sand, tamp a sand core, and militate against an undesirable exposure of uncured sand to catalyst gases, while providing a non-tortuous flow path for sand. The apparatus for the forming of sand cores comprises a core box, a gassing manifold, a blow tube, a sand magazine, a connector tube, and a tamping pin.

Inventors: Newcomb; Thomas P (Defiance, OH)

Assignee: GM Global Technology Operations LLC

International Classification: B22C 15/24 (20060101)

Expiration Date: 2019-03-29 0:00:00