US3985653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary apparatus adapted to bring at least two media of different weight into alternate contact with the apparatus surfaces
Assignee: Individual
•
Filing: 1974-04-29
•
Granted: 1976-10-12
•
Expires: 1994-04-29
Abstract
Abstract A rotary apparatus which is adapted to bring at least two media of different density into alternate contact with the apparatus surfaces, preferably for the purification of one medium, is formed by a body which is closed except for ingress and egress apertures and which has means for causing the body to rotate. In the interior the body has contact surfaces for the media. The contact surfaces are so arranged in the body that at least the medium having the greatest density is advanced therethrough at the rotation. The rotary body is a body having buoyancy of its own and is directly supported in the media of greater density inasmuch as it is adapted to rotate supported by these media and automatically to adjust itself to the levels thereof.
Inventors
- 👤 Nils Harald Ahlgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:11
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/08; C02F3/082; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
125 words
An apparatus for the purification of a liquid by aeration which comprises at least one closed body having at least one ingress and one egress opening, means for containing a quantity of said liquid, means for rotating said body, said body having buoyancy of its own, whereby said closed body is supported by said liquid, said closed body floating in said liquid irrespective of the amount of said liquid within the body during rotation, contact means within the body comprising a partition adapted to drive said liquid from said ingress opening to the center of said body and to the egress opening during rotation, said liquid being forced to pass both sides of the partition, said body admitting alternately said liquid and air during rotation.
Claim 2
Independent Claim
125 words
An apparatus for the purification of a liquid by aeration which comprises at least one closed body having at least one ingress and one egress opening, means for containing a quantity of said liquid, means for rotating said body, said body having buoyancy of its own, whereby said closed body is supported by said liquid, said closed body floating in said liquid irrespective of the amount of said liquid within the body during rotation, contact means within the body comprising a partition adapted to drive said liquid from said ingress opening to the center of said body and to the egress opening during rotation, said liquid being forced to pass both sides of the partition, said body admitting alternately said liquid and air during rotation.
Claim 3
Dependent Claim
47 words
A rotary apparatus as defined in claim 1, wherein the egress opening of the rotary apparatus is connected to a channel element which is adapted to adjust itself automatically to the levels of the medium of greater density and thus to the level of the egress opening.
Claim 4
Dependent Claim
26 words
A rotary apparatus as defined in claim 1, wherein a frame carried by the rotary apparatus is provided to stabilize the floating position of said apparatus.
Claim 5
Dependent Claim
18 words
A rotary apparatus as defined in claim 3, wherein the stabilizing frame has drives for the rotary body.
Claim 6
Dependent Claim
18 words
A rotary apparatus as defined in claim 3, wherein the stabilizing frame is provided with additional floating bodies.
Claim 7
Dependent Claim
17 words
A rotary apparatus as defined in claim 3, wherein the stabilizing frame is provided with stabilizing weights.
Claim 8
Dependent Claim
16 words
A rotary apparatus as defined in claim 3, wherein the stabilizing frame co-operates with anchoring means.
Claim 9
Dependent Claim
19 words
The apparatus according to claim 1, wherein said means for rotating the body are a tubular flexible drive shaft.
Claim 10
Dependent Claim
14 words
The apparatus according to claim 1, wherein said contact means are a spiral partition.
Claim 11
Dependent Claim
13 words
The apparatus according to claim 7, wherein said anchoring means are spring means.
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) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |