Integral blow tube and tamping pin

Details Integral blow tube and tamping pin Integral blow tube and tamping pin

2011-03-29

2011-03-29

Lin, Kuang (Department: 1735)

Metal founding

Process

Shaping a forming surface

C164S016000, C164S200000

Reexamination Certificate

active

07913742

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.

REFERENCES:
patent: 3530928 (1970-09-01), Swinney
patent: 4836269 (1989-06-01), Bellis et al.
patent: 5911267 (1999-06-01), Witte et al.
patent: 7284588 (2007-10-01), Senk, Jr. et al.
patent: 2004/0211537 (2004-10-01), Senk et al.
patent: 54-107429 (1979-08-01), None

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