Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2007-11-13
2007-11-13
Tran, Len (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S369000, C164S037000
Reexamination Certificate
active
10564926
ABSTRACT:
An engine block mold, including at least one barrel slab core (10), the or each barrel slab core (10) including a slab portion (12), and at least one barrel portion (14) adapted to receive a cylinder liner (1), wherein the barrel portion (14) of the or each barrel slab core (10) has an outer diametral taper along at least a portion of its length, and the or each liner (1) has a substantially matching internal diametral taper along at least a portion of its length. Inserting the or each slab barrel core (10) with the or each liner (1) disposed upon it, into a substantially completed mold casing, filling the mold, and then machining the cylinder liners (1) so that they have a substantially constant internal diameter along their length.
REFERENCES:
patent: 5361823 (1994-11-01), Kuhn et al.
patent: 5365997 (1994-11-01), Helgesen et al.
patent: 5771955 (1998-06-01), Helgesen et al.
patent: 5983975 (1999-11-01), Nilsson
patent: 6615901 (2003-09-01), Kaminski et al.
patent: 2002/0185251 (2002-12-01), Kaminski et al.
PCT/AU2004/000949; International Search Report mailed Aug. 26, 2004.
Equipment Merchants International Inc.
Renner Otto Boisselle & Sklar
Tran Len
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