Patent DE262365C successfully refreshed from Google Patents.
US3793152A
Expired / Lapsed
US
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Method of aerobic cultivation of microbes and apparatus therefor
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1971-06-24
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Granted: 1974-02-19
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Expires: 1991-06-24
Abstract
Abstract Method and apparatus for aerobically cultivating microbes in which a cultivating medium including nutrients are dispersed and fed into a tank, dispersing air through the bottom thereof, separating the air from the medium at the top thereof, and circulating the deaerated medium through a circulating tube and returning same together with added cultivating medium to the tank.
Inventors
- 👤 N Sassa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:12
CPC Classifications
C; C12; C12M; C12M29/00; C12M29/26; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/874; Y10S435/875; Y10S435/911; Y10S435/921; Y10S435/924
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
14 words
Process of claim 1, wherein said container means and/or said channel means are cooled.
Claim 2
Dependent Claim
13 words
Process of claim 1, wherein said microbes are Candida tropicalis or Pseudomonas aeruginosa.
Claim 3
Dependent Claim
31 words
Process of claim 1, wherein said air or oxygen is supplied at the rate of 30 X 10 6 g mol O2/atm.min. cc or more, of absorption coefficient of O2 Kd.
Claim 4
Dependent Claim
18 words
Process of claim 2 wherein said carbon sources has particles of size of up to 30 Mu .
Claim 5
Dependent Claim
17 words
Process of claim 1, wherein said carbon source has particles of size up to 10 Mu .
Claim 6
Dependent Claim
26 words
Process of claim 1, wherein the time said microbes are cultivated is controlled by the relation: theta (1/ Mu ) wherein Mu is the growth rate.
Claim 7
Dependent Claim
31 words
Process of claim 1, wherein said nutrient medium comprises an additive selected from the group consisting of nitrogen, nutrient source, inorganic salts, growing agent and other metabolic essentials, and mixtures thereof.
Claim 8
Dependent Claim
15 words
Process of claim 1, wherein said circulating tube is contained within said cultivating container means.
Claim 9
Dependent Claim
22 words
Process of claim 1, wherein after the said removing step (G), the removed microbes are then washed with water and then dried.
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |