Core for casting

Details Core for casting Core for casting

2008-11-05

2011-11-15

Kerns, Kevin P (Department: 1735)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S368000, C164S369000, C249S176000

Reexamination Certificate

active

08056609

ABSTRACT:
A core for casting a container includes a casting surface, where the core is divided into at least two core segments. The casting surface of each core segment adjoins a division surface, and the division surface of each core segment is spaced apart from the division surface of a neighboring core segment by a gap. The gap is spanned by a frangible collapsible member such that substantially all of the casting surface is free of the collapsible member.

REFERENCES:
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patent: 4362686 (1982-12-01), Clishem et al.
patent: RE31488 (1984-01-01), Trumbauer
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patent: 1 173 618 (1964-07-01), None
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patent: 917491 (1963-02-01), None
Jun. 30, 2009 Extended Search Report issued in European Patent Application No. 08019232.1.

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