US3709470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating surface aerator
Assignee: Aqseptence Group GmbH
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Filing: 1969-10-23
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Granted: 1973-01-09
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Expires: 1989-10-23
Abstract
Abstract A floating surface aerating apparatus having most of its weight supported by a buoyant body, preferably annular in shape, immersed in liquid below the level of the surface flow created by the aerating apparatus, and including smaller stabilizing floats located on the surface radially outwardly of the aerating means. The buoyant body and the floats may be designed to facilitate liquid flow and a baffle arrangement may be provided in the vicinity of the buoyant body to influence upward flow of liquid to the aerating apparatus.
Inventors
- 👤 H Auler
- 👤 J Muskat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:39
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/14; C02F3/145; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/234; B01F23/2342; B01F23/23421; C02F3/16; B01F27/00; B01F27/80; B01F33/00; B01F33/50; B01F33/503; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
184 words
An aerating apparatus comprising, an aerating means for introducing air into a liquid by agitating the liquid to create a flow in the surface of the liquid in a direction outwardly from the central part of the aerating means, a support means in the body of liquid for supporting the aerating means, said support means comprising a buoyant body having sufficient buoyancy to support a major portion of the weight of the aerating means to position the same on the surface of the liquid in position to create said surface flow, the entire buoyant body being immersed in the body of liquid completely below the surface of the liquid, substantially below the path of said outward surFace flow so that the buoyant body does not disturb said surface flow, the said support means further comprising stabilizing floating means which are relatively small thus minimizing their disturbing effects on surface flow conditions and are located on the surface of the liquid radially outwardly of the said aerating means wherein the remainder of the weight of the aerating means is supported by said stabilizing floating means.
Claim 2
Dependent Claim
184 words
An aerating apparatus comprising, an aerating means for introducing air into a liquid by agitating the liquid to create a flow in the surface of the liquid in a direction outwardly from the central part of the aerating means, a support means in the body of liquid for supporting the aerating means, said support means comprising a buoyant body having sufficient buoyancy to support a major portion of the weight of the aerating means to position the same on the surface of the liquid in position to create said surface flow, the entire buoyant body being immersed in the body of liquid completely below the surface of the liquid, substantially below the path of said outward surFace flow so that the buoyant body does not disturb said surface flow, the said support means further comprising stabilizing floating means which are relatively small thus minimizing their disturbing effects on surface flow conditions and are located on the surface of the liquid radially outwardly of the said aerating means wherein the remainder of the weight of the aerating means is supported by said stabilizing floating means.
Claim 3
Dependent Claim
39 words
An aerating apparatus according to claim 1, wherein said aerating means includes blades mounted for rotation about a vertical axis, and wherein said buoyant body comprises a generally annular immersed body located below said blades and surrounding said axis.
Claim 4
Dependent Claim
25 words
An aerating apparatus according to claim 2, wherein said stabilizing floating means comprises a plurality of stabilizing members floating on the surface of the liquid.
Claim 5
Dependent Claim
51 words
An aerating apparatus according to claim 3, wherein said support means includes strut members supporting the buoyant body at a certain vertical distance below the said blades, and radial support members for supporting said stabilizing floating members at a certain horizontal distance radially outwardly from said blades, relative to said axis.
Claim 6
Dependent Claim
30 words
An aerating apparatus according to claim 2, wherein said stabilizing floating members are generally streamlined to facilitate the flow of agitated surface liquid past the same with minimal flow resistance.
Claim 7
Dependent Claim
28 words
An aerating apparatus according to claim 2 wherein the buoyant body has a generally streamlined cross-sectional shape to facilitate the flow of liquid upwardly to said aerating means.
Claim 8
Dependent Claim
32 words
An aerating apparatus according to claim 2, including baffle means, operatively assciated with said buoyant body for influencing the direction of liquid flow upwardly past said annular member to said aerating means.
Claim 9
Dependent Claim
27 words
An aerating apparatus according to claim 7 wherein the baffle means comprises a set of baffles located in the free space surrounded by said annular member. 12
Claim 10
Dependent Claim
27 words
An aerating apparatus according to claim 7, wherein said baffles lie in generally vertical planes and extend from said vertical axis radially outwardly to said annular member.
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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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |