US4885137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zero gravity fluidized bed operation
Assignee: Dornier System GmbH
•
Filing: 1988-04-04
•
Granted: 1989-12-05
•
Expires: 2008-04-04
Abstract
Abstract A wheel-like apparatus for the generation of whirling flow and a fluidized bed under zero gravity conditions having spokes which contain at least one reaction chamber for solid particles. Gas is fed into the chamber in radial inward direction for fluidizing action of the particles against any centrifugal force while liquid is sprayed into the chamber radially inwardly or outwardly. Gas plus vaporized liquid is extracted from the chamber in radial inner points and the gas is circulated back after separating the vapor from the gas.
Inventors
- 👤 Wolfram Lork
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:44
CPC Classifications
C; C12; C12M; C12M25/00; C12M25/16; C12M25/20; B; B01; B01J; B01J19/00; B01J8/00; B01J8/18; B01J8/20; B01J8/22; B01J8/224; B01J8/226; B01J8/24; B01J8/38; C12M23/00; C12M23/34; C12M27/00; C12M27/10; C12M29/00; C12M29/20; C12M29/24; C12M35/00; C12M35/04; C12M41/00; C12M41/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
172 words
Apparatus for the generation of whirling flow and a fluidized bed under zero gravity conditions, comprising: a wheel-like configuration having a plurality of radially disposed spokes and means mounting said configuration for rotation about a central axis thereof; at least one reaction chamber for solid particles and being mounted in relation to and arranged in one of the spokes of the wheel-like configuration and thus being a part of a centrifuge, the chamber thus extending in a radial direction; means for feeding gas into each chamber in a radially inward direction for fluidizing the particles against any centrifugal force on accord of rotational movement of the wheel-like configuration; means for causing liquid droplets to be fed into each chamber; means for extracting gas plus vaporized liquid from each chamber at the radially innermost point of that chamber; and means for circulating the gas back to the means for feeding and including means for separating vapor from the gas prior to feeding it back to each reactor chamber through the means for feeding.
Claim 2
Dependent Claim
172 words
Apparatus for the generation of whirling flow and a fluidized bed under zero gravity conditions, comprising: a wheel-like configuration having a plurality of radially disposed spokes and means mounting said configuration for rotation about a central axis thereof; at least one reaction chamber for solid particles and being mounted in relation to and arranged in one of the spokes of the wheel-like configuration and thus being a part of a centrifuge, the chamber thus extending in a radial direction; means for feeding gas into each chamber in a radially inward direction for fluidizing the particles against any centrifugal force on accord of rotational movement of the wheel-like configuration; means for causing liquid droplets to be fed into each chamber; means for extracting gas plus vaporized liquid from each chamber at the radially innermost point of that chamber; and means for circulating the gas back to the means for feeding and including means for separating vapor from the gas prior to feeding it back to each reactor chamber through the means for feeding.
Claim 3
Dependent Claim
20 words
Apparatus as in claim 1, the separating means being arranged in another one of the spokes of the wheel-like configuration.
Claim 4
Dependent Claim
142 words
Apparatus for the generation of whirling flow and a fluidized bed under zero gravity conditions, comprising: a centrifuging wheel having a peripheral ring and a plurality of radial spokes extending from a central chamber to the peripheral ring and having means mounting said wheel for rotation about a central axis thereof; at least one reaction chamber for fluidizable solid particles and being mounted in one of the spokes for extending in a radial direction; means for feeding gas through each reactor chamber into the central chamber in a radially inward direction for fluidizing the particles in each reaction chamber against any centrifugal force, said gas then being fed to the central chamber; and means in at least another one of the spokes and connected for circulating the gas into the peripheral ring and for feeding it back to a respective reaction chamber.
Claim 5
Dependent Claim
142 words
Apparatus for the generation of whirling flow and a fluidized bed under zero gravity conditions, comprising: a centrifuging wheel having a peripheral ring and a plurality of radial spokes extending from a central chamber to the peripheral ring and having means mounting said wheel for rotation about a central axis thereof; at least one reaction chamber for fluidizable solid particles and being mounted in one of the spokes for extending in a radial direction; means for feeding gas through each reactor chamber into the central chamber in a radially inward direction for fluidizing the particles in each reaction chamber against any centrifugal force, said gas then being fed to the central chamber; and means in at least another one of the spokes and connected for circulating the gas into the peripheral ring and for feeding it back to a respective reaction chamber.
Claim 6
Dependent Claim
39 words
Apparatus as in claim 3, there being means for spraying liquid into each reaction chamber, and means in said another one of the spokes for obtaining separate and condensed liquid to be fed back to the means for spraying.
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) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |