System for heat treating castings and reclaiming sand

Metal founding – Stripper or ejector – Means to separate cast product from shaping surface

Reexamination Certificate

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Details

C164S005000, C266S251000, C266S252000, C266S257000

Reexamination Certificate

active

07438119

ABSTRACT:
A system for reclaiming sand from a casting process includes a chamber having an inlet, an outlet, and a plurality of baffles defining a circuitous path for the sand therebetween, a heating element for providing heat to the chamber, and a fluidizing distributor for directing the sand through the chamber. A method of reclaiming waste sand also is provided.

REFERENCES:
patent: 4738615 (1988-04-01), Bailey et al.
patent: 5294094 (1994-03-01), Crafton et al.
patent: 5350160 (1994-09-01), Crafton et al.
patent: 5354038 (1994-10-01), Crafton et al.
patent: 5423370 (1995-06-01), Bonnemasou et al.
patent: 5531423 (1996-07-01), Crafton et al.
patent: 5551998 (1996-09-01), Crafton et al.
patent: 5565046 (1996-10-01), Crafton et al.
patent: 5738162 (1998-04-01), Crafton
patent: 5829509 (1998-11-01), Crafton
patent: 5957188 (1999-09-01), Crafton
patent: 6042369 (2000-03-01), Bergman et al.
patent: 6253830 (2001-07-01), Bickford et al.
patent: 6336809 (2002-01-01), Crafton et al.
patent: 6547556 (2003-04-01), Crafton et al.
patent: 2 137 114 (1984-10-01), None
patent: WO 02/081127 (2002-10-01), None

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