US3679187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air diffusion apparatus for the treatment of polluted water
Assignee: Individual
•
Filing: 1970-06-03
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Granted: 1972-07-25
•
Expires: 1990-06-03
Abstract
Abstract A plurality of substantially similar vertical air diffusion units suspended in spaced relation, and served by a common air supply manifold. Each unit embodying a vertical open-bottomed injection pipe extending downwardly and discharging into the tank liquor. The units being provided with individual orifice fittings which are preset so that the air discharging from all of the pipes will be distributed accordingly. The lower discharge extremities of the pipes, being vertically slotted, circumferentially distribute the discharging air and being provided with bubble deflectors above the slots to distribute and break up the coarse air bubbles arising from open slots. An elongated cleaning rod is provided for insertion down the injection pipes for the occasional removal of undesirable debris.
Inventors
- 👤 Mansel W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:13
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/727; C02F3/00; C02F3/02; C02F3/12; C02F3/20; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2312; B01F23/23125; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
167 words
Means for restoring oxygen to a mass of polluted water in an aeration tank comprising: a. a substantially horizontal, compressed air charged manifold extending over the mass; b. a plurality of air injection pipes in communication with and extending downwardly from said manifold into said mass; c. a bubble deflector comprising a multi-straight-sided block axially secured to and extending radially outward about each injection pipe adjacent to and in vertically spaced relation with the lower extremity of the latter; and d. air release means in the wall of each injection pipe, said release means comprising four equally spaced, vertical slots extending upwardly from the lower extremities of each injection pipe to a plane below the bubble deflectors thereon, so that bubbles arising from said slots will pass medially over the straight sides of said block and will be broken up and distributed by said deflector, said bubble deflectors being square in plan to provide four similar sides, each side being medially aligned with one of said slots.
Claim 2
Dependent Claim
167 words
Means for restoring oxygen to a mass of polluted water in an aeration tank comprising: a. a substantially horizontal, compressed air charged manifold extending over the mass; b. a plurality of air injection pipes in communication with and extending downwardly from said manifold into said mass; c. a bubble deflector comprising a multi-straight-sided block axially secured to and extending radially outward about each injection pipe adjacent to and in vertically spaced relation with the lower extremity of the latter; and d. air release means in the wall of each injection pipe, said release means comprising four equally spaced, vertical slots extending upwardly from the lower extremities of each injection pipe to a plane below the bubble deflectors thereon, so that bubbles arising from said slots will pass medially over the straight sides of said block and will be broken up and distributed by said deflector, said bubble deflectors being square in plan to provide four similar sides, each side being medially aligned with one of said slots.
Claim 3
Dependent Claim
56 words
Means for restoring oxygen as described in claim 1 in which: a. the bottom of the bubble deflector has a truncated pyramidal shape which provides four flat, inclined triangular lower surfaces each extending axially inward and downward from one of sAid four sides to uniformly gravitate bubbles from said slots outwardly and upwardly over said sides.
Claim 4
Dependent Claim
55 words
Means for restoring oxygen as described in claim 2 in which: a. the top of the bubble deflector also has a truncated pyramidal shape which provides four flat, inclined upper surfaces each extending axially inward and upward from one of said four sides to the respective injection pipe to gravitationally direct bubbles toward said pipe.
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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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |