Metal founding – Process – With measuring – testing – inspecting – or condition determination
Reexamination Certificate
2005-09-27
2005-09-27
Lin, Kuang Y. (Department: 1725)
Metal founding
Process
With measuring, testing, inspecting, or condition determination
C164S113000, C164S154200, C164S155400, C164S312000
Reexamination Certificate
active
06948549
ABSTRACT:
A vacuum die casting apparatus includes a casting cavity (10), which is evacuatable via a vacuum valve (26). A liquid casting material is pressable into the casting cavity by a piston (14) actuated by an actuator (17). A filling level sensor (20) detects a predetermined filling level of the casting material in the casting cavity. A control device (34) is connected to the filling level sensor for controlling the vacuum valve, and a position sensor (32) is connected to the control device (34) for detecting movement of the piston (14). The control device generates a closing signal for the vacuum valve (26) when the piston, after reaching the position (s1) at which the filling level sensor (20) indicates a predetermined filling level of the casting cavity (10) with casting material has been reached, is displaced in a predetermined manner.
REFERENCES:
patent: 4852634 (1989-08-01), Kawai et al.
patent: 4986338 (1991-01-01), Yamauchi et al.
patent: 4997026 (1991-03-01), Ozeki et al.
patent: 5361826 (1994-11-01), Yamauchi et al.
patent: 5460218 (1995-10-01), Miwa et al.
patent: 6082438 (2000-07-01), Zielinski et al.
patent: 6158495 (2000-12-01), Bigger
patent: 6298903 (2001-10-01), Wyser et al.
patent: 42 16 773 (1993-11-01), None
patent: 200 16 166 (2000-12-01), None
patent: 0 937 524 (1999-03-01), None
patent: 0 600 324 (1999-06-01), None
patent: 0 936 009 (1999-08-01), None
patent: 0 733 422 (2000-02-01), None
patent: 57-72766 (1982-05-01), None
patent: 63-303672 (1998-12-01), None
patent: 08099161 (2004-04-01), None
Auer Dieter
Bagnoud Christophe
Währisch Klaus
Wenzel Elisabeth
Wüst Jürgen
Alcan BDW GmbH & Co. KG
Lin Kuang Y.
Michael & Best & Friedrich LLP
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