Patent US4032407A successfully refreshed from Google Patents.
US4032407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tapered bed bioreactor
Assignee: Energy Research and Development Administration ERDA
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Filing: 1976-02-24
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Granted: 1977-06-28
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Expires: 1996-02-24
Abstract
Abstract A vertically oriented conically shaped column is used as a fluidized bed bioreactor wherein biologically catalyzed reactions are conducted in a continuous manner. The column utilizes a packing material a support having attached thereto a biologically active catalytic material.
Inventors
- 👤 Charles D. Scott
- 👤 Charles W. Hancher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:18
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/08; C02F3/085; A; A23; A23C; A23C9/00; A23C9/12; A23C9/1203; A23C9/1206; B; B01; B01J; B01J8/00; B01J8/18; B01J8/20; B01J8/22; C12; C12M; C12M23/00; C12M23/02; C12M25/00; C12M25/16; C12M33/00; C12M33/22; C13; C13K; C13K13/00; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/17; Y10S435/00; Y10S435/813; Y10S435/8215; Y10S435/822; Y10S435/874; Y10S435/877
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
77 words
An apparatus for carrying out biologically catalyzed reactions, comprising: a vertically oriented conically-shaped column having an inlet and an outlet disposed from one another along the longitudinal axis of said column, said conically-shaped column diverging at an angle of 0.5°-2° from said axis, said inlet communicating with a section of lesser cross sectional area than said outlet; a particulate support material within said column; and a biological catalyst comprising a living microorganism attached to said particulate support.
Claim 2
Independent Claim
77 words
An apparatus for carrying out biologically catalyzed reactions, comprising: a vertically oriented conically-shaped column having an inlet and an outlet disposed from one another along the longitudinal axis of said column, said conically-shaped column diverging at an angle of 0.5°-2° from said axis, said inlet communicating with a section of lesser cross sectional area than said outlet; a particulate support material within said column; and a biological catalyst comprising a living microorganism attached to said particulate support.
Claim 3
Dependent Claim
16 words
The apparatus according to claim 1, including means for supplying an aqueous influent to said inlet.
Claim 4
Dependent Claim
17 words
The apparatus according to claim 2, further including means for introducing a gaseous reactant to said column.
Claim 5
Dependent Claim
21 words
The apparatus according to claim 1, wherein said support is selected from the group consisting of coal, alumina, sand, and glass.
Claim 6
Dependent Claim
23 words
The apparatus according to claim 4, wherein said support has a particle size within the range of -70 mesh to +400 standard mesh.
Claim 7
Dependent Claim
20 words
The apparatus according to claim 1, wherein said living microorganism is selected from the group of bacteria, yeasts, and algae.
Claim 8
Dependent Claim
12 words
The apparatus according to claim 1, wherein said support material comprises coal.
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) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |