Patent US4409943A successfully refreshed from Google Patents.
Patent US3642257A successfully refreshed from Google Patents.
US3642257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agitating apparatus
Assignee: KH Neochem Co Ltd
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Filing: 1969-03-05
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Granted: 1972-02-15
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Expires: 1989-03-05
Abstract
Abstract The present disclosure is directed to an agitating assembly comprising a stationary lower guide plate means provided with a centrally disposed opening, the outer, peripheral portion of said lower guide plate means being canted upwardly and containing radially extending guide blades disposed on the upper side thereof, means for supporting the lower guide plate means, blade wheel means disposed immediately above the lower guide plate means, and agitating shaft means secured to the blade wheel means, said blade wheel means being rotatably disposed with respect to the stationary lower guide plate means. The present disclosure is also directed to the use of the agitating assembly in a fermentation tank.
Inventors
- 👤 Masatami Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:39
CPC Classifications
C; C12; C12M; C12M27/00; C12M27/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
An agitating apparatus which comprises tank means, inlet means for introducing the material to be treated to said tank means, stationary lower guide plate means containing a centrally disposed opening and supported in the lower portion of the tank means, said lower guide plate means including a substantially horizontal central portion surrounding said opening and an outer peripheral portion surrounding said central portion and canted upwardly and containing curved guide blades extending generally radially adjacent their outer ends and disposed on the upper side thereof, blade wheel means disposed immediately above the lower guide plate means, agitating shaft means extending into the tank means and secured to the blade wheel means, said blade wheel means being rotatably disposed with respect to the stationary lower guide plate means, means associated with the agitation shaft for rotating the shaft and the blade wheel attached thereto, means for introducing a gaseous medium in the vicinity below the lower guide plate means and outlet means for removing the material being treated from the apparatus.
Claim 2
Dependent Claim
170 words
An agitating apparatus which comprises tank means, inlet means for introducing the material to be treated to said tank means, stationary lower guide plate means containing a centrally disposed opening and supported in the lower portion of the tank means, said lower guide plate means including a substantially horizontal central portion surrounding said opening and an outer peripheral portion surrounding said central portion and canted upwardly and containing curved guide blades extending generally radially adjacent their outer ends and disposed on the upper side thereof, blade wheel means disposed immediately above the lower guide plate means, agitating shaft means extending into the tank means and secured to the blade wheel means, said blade wheel means being rotatably disposed with respect to the stationary lower guide plate means, means associated with the agitation shaft for rotating the shaft and the blade wheel attached thereto, means for introducing a gaseous medium in the vicinity below the lower guide plate means and outlet means for removing the material being treated from the apparatus.
Claim 3
Dependent Claim
31 words
The apparatus of claim 1, wherein injection nozzle means disposed below the lower guide plate means in the vicinity of its centrally located opening are used for introducing the gaseous medium.
Claim 4
Dependent Claim
15 words
The apparatus of claim 2, wherein aeration pipe means communicate with said injection nozzle means.
Claim 5
Dependent Claim
36 words
The apparatus of claim 1, wherein the agitating shaft extends through the centrally disposed opening in the lower guide plate means and terminates in a bearing means supported in the lower portion of the tank means.
Claim 6
Dependent Claim
35 words
The apparatus of claim 1, wherein the peripheral portion of the lower guide plate means is provided with at least one collar means for receiving support means fixed to the bottom of the tank means.
Claim 7
Dependent Claim
34 words
The agitating apparatus of claim 1 wherein the central portion of the lower guide plate means is planar and the outer peripheral portion of the lower guide plate means forms an obtuse angle therewith.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |