Title:
IMPROVED FINE PORE MEDIA AND METHOD OF MAKING SAME
Document Type and Number:
WIPO Patent Application WO2004103526
Kind Code:
A3
Abstract:
A filter for filtering impurities from molten metal. The filter comprises ceramic and the filter has a density of less than 10 % of the theoretical density for a ceramic material of the same size and a compressive yield stress of at least 20 psi.
Inventors:
OLSON RUDOLPH A III (US)
STEPPE PATRICIA K (US)
STEPPE PATRICIA K (US)
Application Number:
PCT/US2003/041108
Publication Date:
May 19, 2005
Filing Date:
December 23, 2003
Export Citation:
Assignee:
PORVAIR PLC (GB)
OLSON RUDOLPH A III (US)
STEPPE PATRICIA K (US)
OLSON RUDOLPH A III (US)
STEPPE PATRICIA K (US)
International Classes:
B01D39/20; C04B35/10; (IPC1-7): B01D39/20; C04B35/10
Foreign References:
| US3451842A | 1969-06-24 | |||
| US4040998A | 1977-08-09 | |||
| US5407001A | 1995-04-18 | |||
| US4887795A | 1989-12-19 | |||
| US3893917A | 1975-07-08 |
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