US3882798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary bed elutriation arrestor for a fluid bed disposal method and apparatus
Assignee: Combustion Power Co Inc
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Filing: 1974-06-24
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Granted: 1975-05-13
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Expires: 1994-06-24
Abstract
Abstract A fluid bed disposal method and apparatus are disclosed including a secondary bed/elutriation arrestor obstruction of labyrinth construction in the fluid bed reactor having lower and upper vertically spaced-apart perforate retention plates between which are positioned at least first and second vertically spacedapart grates with the grate bars of the grates staggered with respect to one another. The lower surface of the bars of the lower perforate plate is disclosed as stepped between at least two horizontal surface locations. At least two fluid bed/elutriation arrestor labyrinth obstructions spaced apart above the bed of granular material are disclosed.
Inventors
- 👤 Richard G Reese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:02
CPC Classifications
B; B03; B03B; B03B9/00; B03B9/06; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/28; F; F23; F23G; F23G5/00; F23G5/30; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; F23G2201/00; F23G2201/60; F23G2201/80; F23G2203/00; F23G2203/50
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
155 words
In a waste disposal apparatus for consuming waste with minimal residue and a substantially pollution free gaseous output including a combustion housing, a bed of granular material, means for supporting the bed of granular material within the housing, means for providing combustion air to the bottom of the bed for maintaining the granular material in a fluidized state and an obstruction of labyrinth construction positioned within the housing above the bed, the improvement in the labyrinth construction comprising: lower and upper vertically spaced-apart perforate retention plates, at least first and second vertically spaced-apart grates positioned between said lower and upper plates, means spacing said first and second grates from each other and from said lower and upper plates, each of said first and second grates including a plurality of spaced-apart grate bars, the grate bars of the upper of said grates positioned above the spacing between the grate bars of the lower of said grates.
Claim 2
Dependent Claim
155 words
In a waste disposal apparatus for consuming waste with minimal residue and a substantially pollution free gaseous output including a combustion housing, a bed of granular material, means for supporting the bed of granular material within the housing, means for providing combustion air to the bottom of the bed for maintaining the granular material in a fluidized state and an obstruction of labyrinth construction positioned within the housing above the bed, the improvement in the labyrinth construction comprising: lower and upper vertically spaced-apart perforate retention plates, at least first and second vertically spaced-apart grates positioned between said lower and upper plates, means spacing said first and second grates from each other and from said lower and upper plates, each of said first and second grates including a plurality of spaced-apart grate bars, the grate bars of the upper of said grates positioned above the spacing between the grate bars of the lower of said grates.
Claim 3
Dependent Claim
29 words
The apparatus of claim 1 wherein each of said lower and upper perforate plates includes a plurality of spaced-apart bars aligned parallel with the grate bars of said grates.
Claim 4
Dependent Claim
26 words
The apparatus of claim 2 wherein the lower surface of the bars of the lower perforate plate is stepped between at least two horizontal surface locations.
Claim 5
Dependent Claim
149 words
In a waste disposal apparatus for consuming waste with minimal residue and a substantially pollution-free gaseous output including a combustion housing, a bed of granular material, means for supporting the bed of granular material within the housing, and means for providing combustion air to the bottom of the bed for maintaining the granular material in a fluidized state, the improvement comprising: a first obstruction of labyrinth construction positioned in said housing above said bed, conduit means open at the top of said first obstruction means and extending through said first obstruction to a position below the surface of the bed of granular material, a second obstruction of labyrinth construction positioned in said housing above said first obstruction, and conduit means open at the top of said second obstruction and extending through said second and said first obstructions to a postition below the surface of the bed of granular material.
Claim 6
Dependent Claim
149 words
In a waste disposal apparatus for consuming waste with minimal residue and a substantially pollution-free gaseous output including a combustion housing, a bed of granular material, means for supporting the bed of granular material within the housing, and means for providing combustion air to the bottom of the bed for maintaining the granular material in a fluidized state, the improvement comprising: a first obstruction of labyrinth construction positioned in said housing above said bed, conduit means open at the top of said first obstruction means and extending through said first obstruction to a position below the surface of the bed of granular material, a second obstruction of labyrinth construction positioned in said housing above said first obstruction, and conduit means open at the top of said second obstruction and extending through said second and said first obstructions to a postition below the surface of the bed of granular material.
Claim 7
Dependent Claim
129 words
Method of consuming waste material with minimal residue and a substantially pollution-free gaseous output comprising the steps of: introducing waste material into a heated, fluidized bed of granular material, obstructing upward movement of the granular material and waste at a first location above the fluid bed by an obstruction of labyrinth construction which permits torturous movement of granular material therethrough, returning into the fluid bed granular material which passes the stage of first obstruction, obstructing upward movement of the granular material and waste at a second location above the fluid bed and above the location of the first obstruction stage by an obstruction of labyrinth construction which permits torturous movement of granular material therethrough, and returning into the fluid bed granular material which passes the stage of second obstruction.
Claim 8
Dependent Claim
129 words
Method of consuming waste material with minimal residue and a substantially pollution-free gaseous output comprising the steps of: introducing waste material into a heated, fluidized bed of granular material, obstructing upward movement of the granular material and waste at a first location above the fluid bed by an obstruction of labyrinth construction which permits torturous movement of granular material therethrough, returning into the fluid bed granular material which passes the stage of first obstruction, obstructing upward movement of the granular material and waste at a second location above the fluid bed and above the location of the first obstruction stage by an obstruction of labyrinth construction which permits torturous movement of granular material therethrough, and returning into the fluid bed granular material which passes the stage of second obstruction.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |