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US 4,526,688 AGranted
Pressure filter with vibratory impactor
AssigneeIndustrial Filter & Pump Mfg. Co.
InventorsHenry Schmidt, Jr., Allen E. Cederholm, James F. Zievers
Life of this patent
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Abstract
A pressure filter utilizes a vibratory impactor for imparting vertically directed high frequency shock waves to a rigid manifold from which a plurality of rigid filter tubes incorporate a fine mesh sleeve held tightly by spaced elastic bands against a unitary plastic core having inner and outer tubes interconnected by integral web portions.
Claims13
A filter, comprising in combination,
- a filter tank enclosing a filter chamber,
- a liquid inlet opening into said tank through which a filtrate may be introduced into said chamber,
- a rigid outlet manifold having a passageway therein,
- an outlet from said tank connected to said passageway in said manifold,
- shelf means affixed to said tank for supporting said outlet manifold in said chamber,
- said manifold resting directly on said shelf means,
- a plurlity of longitudinally incompressible filter elements suspended from said manifold in vertically oriented, mutually parallel positions,
- said elements having internal cavities communicating with said passageway in said manifold, and
- vibratory impactor means connected to said manifold for imparting vertically directed shock waves to said manifold,
- whereby a shear force is exerted between said filter elements and filter cakes deposited thereon to release said cakes from said filter elements.
7 more elements
A tubular filter element, comprising
- a molded, one piece plastic core member having a central longitudinal tube portion, an outer tube portion having an exterior surface, said outer tube portion being concentric with said central tube portion, a plurality of longitudinally extending rectilinear webs interconnecting said tube portions, and said outer tube portion having a plurality of longitudinally extending ribs defining parallel flutes on the exterior surface thereof,
- first and second caps affixed to first and second ends of said core,
- said first end cap havig a passageway therethrough opening into a first end of said central tube portion,
- said second end cap being spaced from a second end of said central tube portion,
- passageway means through said outer tube portion connecting said flutes to the second end of said central tube portion, and
- a perforate sleeve overlying said core and sealably connected to said first and second end caps.
3 more elements
A filter, comprising in combination
- a filter tank enclosing a filter chamber,
- a liquid inlet opening into said tank through which a filtrate may be introduced into said chamber,
- a rigid tubular outlet manifold loosely mounted in said tank, and having a passageway therein
- an outlet from said tank connected to the passageway in said manifold,
- a plurality of longitudinally incompressible filter elements fixedly mounted to said manifold in mutually parallel relationship,
- said filter elements having cavities therein connected to the passageway in said manifold and perforate external surfaces on which filter cakes are deposited during operation of said filter as liquid flows from said chamber through said surfaces to said outlet, and
- vibratory impactor means connected to said manifold for imparting to said manifold vibratory shock waves in a direction parallel to said external surfaces to exert shear forces at interfaces of said filter cakes and said perforate external surfaces to separate said filter cakes from said filter elements.
4 more elements
Dependencies are inferred from the claim text.