US3672577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid bed grid plate assembly
Assignee: Fuller Co
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Filing: 1970-10-15
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Granted: 1972-06-27
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Expires: 1990-10-15
Abstract
Abstract This invention relates to a grid plate assembly for a fluid bed reactor including an apertured grid plate having nozzle elements in the apertures. The apertures and nozzle elements are structured to prevent dislodgement of the nozzle elements from the grid plate during use of the assembly yet permit ready removal of the nozzle elements from the apertures when desired.
Inventors
- 👤 Walter W Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:42
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
110 words
In combination, a grid plate for fluid bed reactors having a plurality of apertures therethrough, said apertures having walls defining a lower portion and a communicating upper portion with a truncated conical shape, the diameter of said upper portion being larger than that of said lower portion so as to form a circumferential shoulder at the zone of communication between said portions; a hollow nozzle element disposed in each of said upper portions, said nozzle elements comprising a head and a downwardly and outwardly tapering body spaced from said upper portion walls; and sealing means between said upper portion walls and said body to prevent dislodgement of said nozzle elements.
Claim 2
Dependent Claim
110 words
In combination, a grid plate for fluid bed reactors having a plurality of apertures therethrough, said apertures having walls defining a lower portion and a communicating upper portion with a truncated conical shape, the diameter of said upper portion being larger than that of said lower portion so as to form a circumferential shoulder at the zone of communication between said portions; a hollow nozzle element disposed in each of said upper portions, said nozzle elements comprising a head and a downwardly and outwardly tapering body spaced from said upper portion walls; and sealing means between said upper portion walls and said body to prevent dislodgement of said nozzle elements.
Claim 3
Dependent Claim
51 words
The combination of claim 1 wherein said grid plate comprises a plurality of abutting preformed sections of refractory material, said sections having recessed areas in at least one side wall which mate with corresponding recessed areas of abutting sections to form said apertures, and said sealing means is a refractory material.
Claim 4
Dependent Claim
24 words
The combination of claim 1 wherein said body has an outwardly projecting circumferential apron and said upper portion wall has a groove mating therewith.
Claim 5
Dependent Claim
32 words
The combination of claim 1 wherein the downwardly and outwardly tapering body of each nozzle element is substantially parallel with the upper portion walls of the aperture in which it is disposed.
Claim 6
Dependent Claim
19 words
The combination of claim 4 wherein a nozzle element is seated on a shoulder in each of said apertures.
Claim 7
Dependent Claim
51 words
The combination of claim 5 wherein said grid plate comprises a plurality of abutting preformed sections of refractory material, said sections having recessed areas in at least one side wall which mate with corresponding recessed areas of abutting sections to form said apertures, and said sealing means is a refractory material.
Claim 8
Dependent Claim
82 words
For use in combination with a fluid bed reactor grid having a plurality of apertures therethrough, each having walls defining a lower portion and a communicating upper portion with a truncated conical shape, a nozzle element comprising a hollow body having a head and downwardly and outwardly tapering side walls adapted to extend into the upper portion of an aperture in a fluid bed reactor grid, with the head of said body being closed and having at least one gas passage therethrough.
Claim 9
Dependent Claim
82 words
For use in combination with a fluid bed reactor grid having a plurality of apertures therethrough, each having walls defining a lower portion and a communicating upper portion with a truncated conical shape, a nozzle element comprising a hollow body having a head and downwardly and outwardly tapering side walls adapted to extend into the upper portion of an aperture in a fluid bed reactor grid, with the head of said body being closed and having at least one gas passage therethrough.
Claim 10
Dependent Claim
15 words
The nozzle element of claim 7 wherein said side walls terminate in a flat base.
Claim 11
Dependent Claim
16 words
The nozzle element of claim 8 wherein said gas passage is angled downwardly from the horizontal.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |