Patent US3815879A successfully refreshed from Google Patents.
US3815879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for stirring and aerating liquids in mass-exchange apparatus
Assignee: Individual
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Filing: 1972-07-10
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Granted: 1974-06-11
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Expires: 1992-07-10
Abstract
Abstract A device wherein disks (2) parallelly fixed on shaft (1) are supplied with blades (3) and separated from each other with baffles (6), each of said baffles carrying a cylinder (7) having beading (8) which in combination with the baffle (6) forms an annular slot (9) providing a directed liquid circulation in the apparatus.
Inventors
- 👤 V Boiko
- 👤 P Nikolaev
- 👤 I Melnikov
- 👤 V Eremin
- 👤 V Revazov
- 👤 J Jurievich
- 👤 G Losev
- 👤 E Mikhailov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:26
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2334; B01F23/23342; B01F33/00; B01F33/86; B01F33/862; B01F27/00; B01F27/05; B01F27/11; B01F27/111; B01F27/19; B01F27/191
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
A device for stirring and aerating liquids in a massexchanging apparatus comprising: a rotatable shaft with a drive; disks with their peripheries parallelly and rotatably fixed at a certain distance from each other on said shaft; blades disposed around the periphery of each disk; non-rotating baffles mounted on said shaft in a fluid flow blocking arrangement between each of said disks and supplied with aerating agent inlet holes disposed around the peripheries of said baffles; a cylinder surrounding said shaft and positioned at one side of and mounted on each of said baffles and supplied with a beading which in combination with each said baffle forms an annular liquid outlet slot, the opening of said slot opposing the periphery of said disk to provide a directed liquid circulation In the apparatus; and an inlet means for supplying the aerating agent to the apparatus through said inlet holes which is positioned at the side of each said baffle opposing the side carrying said cylinder for improving the dispersion and distribution of the aerating agent.
Claim 2
Independent Claim
173 words
A device for stirring and aerating liquids in a massexchanging apparatus comprising: a rotatable shaft with a drive; disks with their peripheries parallelly and rotatably fixed at a certain distance from each other on said shaft; blades disposed around the periphery of each disk; non-rotating baffles mounted on said shaft in a fluid flow blocking arrangement between each of said disks and supplied with aerating agent inlet holes disposed around the peripheries of said baffles; a cylinder surrounding said shaft and positioned at one side of and mounted on each of said baffles and supplied with a beading which in combination with each said baffle forms an annular liquid outlet slot, the opening of said slot opposing the periphery of said disk to provide a directed liquid circulation In the apparatus; and an inlet means for supplying the aerating agent to the apparatus through said inlet holes which is positioned at the side of each said baffle opposing the side carrying said cylinder for improving the dispersion and distribution of the aerating agent.
Claim 3
Dependent Claim
50 words
A device according to claim 1 wherein the blades, with one of their ends fixed to the disk, carry on the opposite ends a frusto-conical ring the larger base of which faces the disk, said conical ring together with the blades and the disk forming passages for the liquid flow.
Claim 4
Dependent Claim
32 words
A device according to claim 1 wherein between the baffle and the cylinder beading there are fixed plates directing the liquid movement and facing the liquid flow with one of their ends.
Claim 5
Dependent Claim
19 words
A device according to claim 1 wherein each cylinder is provided with apertures for passing the circulating liquid flow.
Claim 6
Dependent Claim
53 words
A device according to claim 1 wherein each cylinder positioned on the baffle is connected thereby with the unbeaded end of the subsequent cylinder, the terminal baffle being fixed to the bottom of the apparatus and the terminal cylinder positioned at the opposite end of the device being open at the unbeaded end.
References Cited (Backward Citations)
US2615698A
Cited
US2847200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |