Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – By separating metal in a molten mass from undesired...
Patent
1988-11-09
1990-01-16
Kastler, S.
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
By separating metal in a molten mass from undesired...
266287, C21B 304
Patent
active
048937924
ABSTRACT:
This invention relates to a cold trap for collecting impurities from liquid, which comprises a mesh screen and a spacer mesh having higher strength and wider mesh holes than that of the mesh screen interposed between the windings of the mesh screen. According to the present invention, since the spacer mesh supports the mesh screen over the whole surface thereof so that the mesh screen is protected free from break or deformation, the stiffness and collecting efficiency of the mesh section can be maintained prolongedly.
REFERENCES:
patent: 3744995 (1973-07-01), Mackay
patent: 3831912 (1974-08-01), Shimoyashiki et al.
patent: 4291865 (1981-09-01), Grundy
Haino Hiroshi
Mokuya Kenji
Nemoto Kiyomitsu
Sato Yoshihiko
Shimoyashiki Shigehiro
Hitachi , Ltd.
Kastler S.
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