Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2007-09-18
2007-09-18
Kerns, Kevin (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S136000, C164S137000, C164S323000, C164S337000
Reexamination Certificate
active
10547747
ABSTRACT:
In a method for pouring several moulds in a mould-string plant in the pouring operation, the moulds are produced by compression of sand or similar mould material in a pressing chamber comprising pattern plates3, 4for providing impressions in the surfaces of the mould parts for forming the mould cavities11and inlet runners8. The moulds are advanced to a pouring track or guideway, on which the casting moulds are formed by positioning the mould parts close together and the advancement of the casting moulds is stepwise through a pouring station, in which the moulds are filled with molten metal. By providing at least one runner7for mutually connecting at least two inlet runners8for consecutive mould cavities11, the mutually connected mould cavities can be filled through a single pouring inlet8, and unused pouring inlets8may be plugged by a suitable plug14in order to minimise the amount of molten metal needed to fill the mould cavities11.
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patent: 6463993 (2002-10-01), Cle Nogueras et al.
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Ergin Huseyin Erol
Nielsen Henning Rahlf
Disa Industries A/S
Jackson Douglas E.
Kerns Kevin
Lin I.-H.
Stites & Harbison PLLC
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