Filter Assembly And Filter Element
a filter element and filter assembly technology, applied in the field of filter assembly and filtering, can solve the problems of inability to easily adjust certain conventional spring filters, inability to manufacture other conventional spring filters, and inability to manufacture, etc., to achieve the effect of convenient manufacturing
Inactive Publication Date: 2007-02-01
CAREW E BAYNE
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- Abstract
- Description
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- Application Information
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Benefits of technology
The filter assembly provides a reliable and adjustable filtration system that can efficiently filter both liquids and gases, including slurries, by maintaining optimal filtration aperture sizes, enhancing manufacturing ease and adaptability.
Problems solved by technology
Conventional spring filters, including the helically- and spirally-wound spring filters disclosed in the above-referenced patents, are deficient for various reasons.
For instance, certain conventional spring filters are not adjustable.
Other conventional spring filters are not easily adjustable and are not easily manufactured.
As one specific example, the conventional spring filter disclosed in the '892 patent is deficient because the entire coil of this conventional spring filter, which is made up of a plurality of individual flat coils, is extremely weak having a k factor of about zero.
As a result, filtration gaps, or filtration apertures, can not be maintained between the individual flat coils when the spring filter is vertically-oriented.
This conventional spring filter is also particularly difficult to manufacture.
More specifically, this conventional spring filter requires that the individual flat coils of the filter be manufactured such that the filtration apertures, between adjacent flat coils progressively increase in size and pitch which, as understood by those skilled in the art, is a particularly cumbersome requirement.
Method used
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[0027] Referring to the Figures, wherein like numerals indicate like or corresponding parts throughout the several views, a filter assembly for filtering a fluid is generally disclosed at 10. It is to be understood that the filter assembly 10 and method of filtering according to the subject invention are capable of filtering both liquids and gases as the fluid. The filter assembly 10 of the subject invention is most preferably used to filter fluids having solid particles including, but not limited to, slurries of biological waste. As such, the filter assembly 10 is commonly used in combination with such devices as shaker screens, steam scrubbers and / or strippers, biofilters, conveyors, and as a component in mobile filtration units.
[0028] As shown best in FIGS. 1A through 2B, the filter assembly 10 includes a plurality of wave coils 12. The plurality of wave coils 12 are formed from individual flat wave coils 12. The wave coils 12 include at least one crest 14 and at least one troug...
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A filter assembly and a method of filtering a fluid using the filter assembly are disclosed. The filter assembly includes wave coils arranged axially to define a filter element. The filter element includes bottom and top ends and an inner cavity. The filter assembly also includes a base plate that engages one, or both, ends to support the wave coils. The fluid flows toward the base plate, and the base plate diverts the fluid inside or outside the inner cavity. The wave coils include crests and troughs engaging one another on adjacent wave coils to define filtration apertures. The diverted fluid is filtered through the filtration apertures such that a filtrate of the fluid passes through the inside or outside of the inner cavity, and a retentate of the fluid is retained on the other of the inside or outside of the inner cavity relative to the filtrate.
Description
RELATED APPLICATIONS [0001] The present application claims priority to and all advantages of U.S. Provisional Patent Application No. 60 / 225,895, which was filed on Aug. 17, 2000.BACKGROUND OF THE INVENTION [0002] 1) Field of the Invention [0003] The subject invention generally relates to a filter assembly and method of filtering utilizing the filter assembly to filter a fluid. More specifically, the subject invention relates to an adjustable filter assembly including a filter element and filtration apertures that are defined between crests and troughs of adjacent wave coils of the filter element wherein the filtration apertures are adjustable. [0004] 2) Description of Related Art [0005] Spring filters are known in the art. Helically- or spirally-wound spring filters are also known in the art. Examples of such conventional spring filters are disclosed in U.S. Pat. Nos. 4,113,000; 4,199,454; and 5,152,892. Conventional spring filters, including the helically- and spirally-wound spring...
Claims
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IPC IPC(8): A01K63/04B01D29/15B01D36/00B01D37/02
CPCA01K63/045B01D29/15B01D29/48B01D36/003B01D37/025B01D2201/0415B01D2201/184B01D29/23B01D29/58B01D29/606B01D29/668B01D29/902B01D29/925B01D29/906B01D29/908
InventorCAREW, E. BAYNE
OwnerCAREW E BAYNE