US3795090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid filter construction
Assignee: Barnebey-Cheney Co
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Filing: 1972-08-25
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Granted: 1974-03-05
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Expires: 1992-08-25
Abstract
Abstract This disclosure pertains to the construction of assemblies of granular material filled adsorbers or filters for fluids using modular components readily standardized to facilitate assembly of a variety of filter unit sizes and in diverse patterns from stock manufactured parts. The adsorbent filled panels are between airspace panels which are modular components of this invention. The other modular components include a hopper shaped housing and supporting and spacing means for assembling the air-space modules inside the housing. The filter is completed by filling the hopper, between the air-space modules, with granular adsorbent or other filtering medium.
Inventors
- 👤 H Barnebey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:39
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
341 words
In a filter assembly comprising a hopper, a set of spaced apart hollow panels and a filling of granular filtering material, the construction characterized by a hopper having substantially vertical side walls on two opposite sides and inclined side walls on the adjacent opposite sides, a solids filling inlet at the top center of said hopper, a solids removal outlet at the bottom center of said hopper, said inclined side walls sloping upwardly from opposite sides of said solids removal outlet at an angle from the horizontal at least as great as the angle of repose of the granular filtering material, the distance between said solids filling inlet and said solids removal outlet being such that the top surface of the heap of granular material at its angle of repose extends to said inclined side walls on each side of said hopper when filled, thus leaving an empty space in said hopper on each side of said filling inlet, fluid passage openings in the wall of said hopper enclosing each said empty space, a plurality of air-space panel modules assembled spaced in parallel relation within said hopper, each such air-space panel having two parallel screen sides the edges of which are parallel to said inclined side walls of said hopper, the lower two of said edges being adjacent but spaced from said inclined side walls, said panels being parallelograms of which the long dimension is such that the upper end of the panel is above the surface of the heap in one of said empty spaces, and the short dimension of which is such that the upper side of said panel extends through said surface below the surface of the heap on the opposite side of said hopper, said upper side of said panels being a cover barring flow of filtering material from said filling opening from filling the space between said two parallel screen sides of said panels, said plurality of panels being assembled with their long dimensions alternately extending into the empty spaces on opposite sides of said hopper.
Claim 2
Dependent Claim
341 words
In a filter assembly comprising a hopper, a set of spaced apart hollow panels and a filling of granular filtering material, the construction characterized by a hopper having substantially vertical side walls on two opposite sides and inclined side walls on the adjacent opposite sides, a solids filling inlet at the top center of said hopper, a solids removal outlet at the bottom center of said hopper, said inclined side walls sloping upwardly from opposite sides of said solids removal outlet at an angle from the horizontal at least as great as the angle of repose of the granular filtering material, the distance between said solids filling inlet and said solids removal outlet being such that the top surface of the heap of granular material at its angle of repose extends to said inclined side walls on each side of said hopper when filled, thus leaving an empty space in said hopper on each side of said filling inlet, fluid passage openings in the wall of said hopper enclosing each said empty space, a plurality of air-space panel modules assembled spaced in parallel relation within said hopper, each such air-space panel having two parallel screen sides the edges of which are parallel to said inclined side walls of said hopper, the lower two of said edges being adjacent but spaced from said inclined side walls, said panels being parallelograms of which the long dimension is such that the upper end of the panel is above the surface of the heap in one of said empty spaces, and the short dimension of which is such that the upper side of said panel extends through said surface below the surface of the heap on the opposite side of said hopper, said upper side of said panels being a cover barring flow of filtering material from said filling opening from filling the space between said two parallel screen sides of said panels, said plurality of panels being assembled with their long dimensions alternately extending into the empty spaces on opposite sides of said hopper.
Claim 3
Dependent Claim
43 words
A filter as set forth in claim 1 in which said panel screens are rectangular, and the lower sides and ends thereof are covered barring flow of filtering material at its normal angle of repose up into said panels between said parallel screens.
References Cited (Backward Citations)
US3022861A
Cited
US3747308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |