High capacity filter
AssigneeVesuvius Crucible Company
InventorsJay M. Morris, Laurie A. Strom
Life of this patent
Estimating the term…
Abstract
A reticulated ceramic filter for molten metal has an inlet portion with an inlet surface, an intermediate body portion contiguous with the inlet portion and an outlet portion with an outlet surface. The inlet surface is non-planar with upper surfaces and lower surfaces to provide a substantial contact area for molten metal supplied to the inlet surface.
Claims52
A filter having a reticulated ceramic inlet portion, a reticulated ceramic intermediate body portion contiguous with said inlet portion and a reticulated ceramic outlet portion contiguous with said intermediate body portion;
- said inlet portion having an inlet surface formed with a plurality of raised peaks, each of said raised peaks having an upper surface and a base, a lower depression located at said base of each of said raised peaks;
- and said outlet portion having an outlet surface spaced from said intermediate body portion, whereby said raised peaks and said lower depressions of said inlet surface provide a substantial contact area for liquids supplied to said inlet surface of said inlet portion of said filter to increase the filtration capacity of said filter and the rate of flow of liquid passing through said inlet portion, said intermediate body portion and said outlet portion to said outlet surface.
A filter having a reticulated ceramic inlet portion, a reticulated ceramic intermediate body portion contiguous with said inlet portion and a reticulated ceramic outlet portion contiguous with said intermediate body portion;
- said inlet portion having an inlet surface formed with a plurality of raised peaks, each of said raised peaks having an upper surface and a base, a lower depression located at said base of each of said raised peaks, an impervious ceramic coating on each of said lower depressions to divert the direction of flow of liquid flowing into said depressions into a different direction of flow, and said outlet portion having an outlet surface spaced from said intermediate body portion, whereby said coated depressions form a tortuous flow path for liquid supplied to said inlet surface and said raised peaks and said lower depressions of said inlet surface provide a substantial contact area for liquid supplied to said inlet surface of said inlet portion of said filter to increase the filtration capacity of said filter and the rate of flow of liquid passing through said filter.
A filter having a reticulated ceramic inlet portion, a reticulated ceramic intermediate body portion contiguous with said inlet portion and a reticulated ceramic outlet portion contiguous with said intermediate body portion;
- said outlet portion having an outlet surface;
- said inlet portion having an inlet surface formed with a plurality of spaced openings, a blind hole extending away from each of said openings toward said outlet surface, each of said blind holes having a continuous longitudinal side wall and an end wall spaced from said inlet surface, whereby said openings and said end walls of said blind holes provide a substantial contact area for liquids supplied to said inlet surface to increase the filtration capacity of said filter and the rate of flow of liquid passing through said filter.
A filter having a reticulated ceramic inlet portion, a reticulated ceramic intermediate body portion, and a reticulated ceramic outlet portion;
- said inlet portion having a non-planar inlet surface formed with a plurality of depressions;
- and said outlet portion having an outlet surface spaced from said inlet portion, whereby said depressions of said non-planar inlet surface provide a substantial contact area for liquids supplied to said inlet surface of said inlet portion of said filter to increase the filtration capacity of said filter and the rate of flow of liquid passing through said inlet portion, said intermediate body portion and said outlet portion to said outlet surface.
Dependencies are inferred from the claim text.