US3926810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the aeration of effluent with oxygen-containing gas
Assignee: Hoechst AG
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Filing: 1974-06-21
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Granted: 1975-12-16
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Expires: 1994-06-21
Abstract
Abstract Effluent is aerated with oxygen-containing gas in an aeration basin. The basin subdivided into two halves is comprised of a plurality of aeration boxes which have flattened horizontal and perforated upper ends for the passage of the oxygen-containing gas therethrough, are connected together by means of a conduit, are placed side by side, are spaced apart from each other and are disposed along one of the longitudinal sides of the aeration basin. Transverse walls support the individual aeration boxes. A partition wall is secured perpendicularly to the transverse walls. The partition wall is dipped in the basin, subdivides the two basin halves into two further halves, terminates above the bottom of, and below the effluent level in, the basin. The aeration boxes are made of plastics material, have a rectangular cross-sectional area, open lower ends and gas outlets centrally surrounded by a counterbore.
Inventors
- 👤 Hugo Gudernatsch
- 👤 Gerhart Jaekel
- 👤 Wolfgang Kroll
- 👤 Volker Oden
- 👤 Konrad Reinhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:48
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2312; B01F23/23126; B01F23/231261; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
124 words
AN APPARATUS FOR AERATING EFFLUENTS IN AN AERATION BASIN, THE BASIN BEING COMPRISED OF A PLURALITY OF AERATION BOXES PLACED PARALLEL TO EACH OTHER, SPACED APART FROM EACH OTHER AND CONNECTED TOGETHER BY A MANIFOLD, SAID AERATION BOXES HAVING FLATTENED HORIZONTAL UPPER SIDES AND SAID UPPER SIDES BEING PENETRATED BY A PLURALITY OF GAS OUTLETS, THE APPARATUS BEING CHARATERIZED IN THAT THE AERATION BOXES HAVING A RECTANGULAR CROSS-SECTIONAL AREA AND TERMINAL SURFACE AREAS, SAID AERATION BOXES COMPRISES PLASTIC MATERIAL AND ARE OPEN AT THEIR BOTTOMS; IN THAT THE AERATION BOXES ARE FORMED WITH OUTWARDLY DIRECTED FLANGES; IN THAT WELD SEAMS ARE DISPOSED UPON SAID TERMINAL SURFACE AREA; IN THAT EACH OF THE GAS OUTLETS IS PROVIDED FROM BELOW WITH A CENTRAL COUNTERBORE INCLUDING AN
Claim 2
Independent Claim
124 words
AN APPARATUS FOR AERATING EFFLUENTS IN AN AERATION BASIN, THE BASIN BEING COMPRISED OF A PLURALITY OF AERATION BOXES PLACED PARALLEL TO EACH OTHER, SPACED APART FROM EACH OTHER AND CONNECTED TOGETHER BY A MANIFOLD, SAID AERATION BOXES HAVING FLATTENED HORIZONTAL UPPER SIDES AND SAID UPPER SIDES BEING PENETRATED BY A PLURALITY OF GAS OUTLETS, THE APPARATUS BEING CHARATERIZED IN THAT THE AERATION BOXES HAVING A RECTANGULAR CROSS-SECTIONAL AREA AND TERMINAL SURFACE AREAS, SAID AERATION BOXES COMPRISES PLASTIC MATERIAL AND ARE OPEN AT THEIR BOTTOMS; IN THAT THE AERATION BOXES ARE FORMED WITH OUTWARDLY DIRECTED FLANGES; IN THAT WELD SEAMS ARE DISPOSED UPON SAID TERMINAL SURFACE AREA; IN THAT EACH OF THE GAS OUTLETS IS PROVIDED FROM BELOW WITH A CENTRAL COUNTERBORE INCLUDING AN
Claim 3
Dependent Claim
14 words
The apparatus as claimed in claim 1, wherein the aeration boxes are of polyethylene.
Claim 4
Dependent Claim
16 words
An apparatus as claimed in claim 1, wherein the counterbore includes an angle Alpha of 120*.
Claim 5
Dependent Claim
19 words
The apparatus as claimed in claim 1 wherein the residual wall thickness for the plastic material is 1 mm.
Claim 6
Dependent Claim
116 words
The apparatus as claimed in claim 1 wherein the aeration basin has a sidewall, a transverse support frame extending horizontally from said sidewall below the level of the effluents in the basin and directly below the aeration boxes for supporting them, the outer end of the transverse support frame extending substantially midway into the basin, and a partition wall connected to and disposed downwardly from the outer end of the transverse wall with its lower end spaced from the bottom of the basin whereby the basin is centrally subdivided whereby a circulating flow of effluent is promoted upwardly through the aeration boxes and downwardly on the side of the partition wall remote from the aeration boxes.
Claim 7
Dependent Claim
22 words
The apparatus as claimed in claim 5 wherein the outwardly directed flanges of the aeration boxes rest upon the transverse support frame.
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |