Title:
BURPING FILTER
Document Type and Number:
WIPO Patent Application WO2002096533
Kind Code:
A8
Abstract:
According to the present invention there is provided a ceramic foam filter for molten metal filtration comprising a preferably substantially flat inlet portion, an intermediate portion and an outlet portion that incorporates an undulating surface defining peaks and valleys. Making the outlet portion or surface irregular as described herein provides paths for entrapped air to escape or vent during start-up, thereby significantly reducing or eliminating the need for potentially harmful corrective action, such as rapping, to achieve a rapid filter start-up.
Inventors:
QUACKENBUSH MARK (US)
Application Number:
PCT/IB2002/001863
Publication Date:
January 03, 2003
Filing Date:
May 27, 2002
Export Citation:
Assignee:
PYROTEK INC (US)
QUACKENBUSH MARK (US)
QUACKENBUSH MARK (US)
International Classes:
B01D39/20; C22B9/02; C22B21/06; (IPC1-7): B01D21/00; B01D24/00; B01D29/07; B01D29/085; B01D29/11; B01D29/46; B01D29/48; B01D29/50; B01D39/00; B01D39/06; B01D39/10; B01D39/20; B01D41/00; B22C9/08
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