Metal founding – Means to apply vacuum directly to work or to hold or... – Means applying vacuum or suction directly to molten casting...
Patent
1993-06-07
1995-01-24
Bradley, P. Austin
Metal founding
Means to apply vacuum directly to work or to hold or...
Means applying vacuum or suction directly to molten casting...
164254, 164256, B22D 1806
Patent
active
053835140
ABSTRACT:
A vacuum casting apparatus includes a molten metal passage for delivering molten metal into a sprue of a casting die encapsulated in a enclosure, a cylindrical stoke for communicating the molten metal passage with a reservoir tank, a stoke connecting member for biasing the stoke to a member on which the molten metal passage is formed, an auxiliary flange positioned around the stoke connecting member and contacting a surface of said enclosure, and a flexible plate member for air tightly closing a space between the stoke connecting member and the auxiliary flange.
REFERENCES:
patent: 3322186 (1967-05-01), Takacs, Jr.
patent: 3529753 (1970-09-01), Mack
Ekino Yoshio
Hayashi Yoshiro
Masuda Ryuichi
Taguchi Masahiro
Bradley P. Austin
Puknys Erik R.
Toyota Jidosha & Kabushiki Kaisha
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