US3744637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baffle waste treatment tank baffle waste treatment tank
Assignee: Individual
•
Filing: 1971-03-17
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Granted: 1973-07-10
•
Expires: 1991-03-17
Abstract
Abstract A waste treatment tank has a single baffle dividing an enclosure into a lower aeration compartment and an upper clarification compartment. A blower supplies air to both an aeration air system and a floating waste recycle system. The baffle has openings along its top and bottom permitting controlled communication between aeration and clarification compartments. The aeration air system operates so as to create a circulatory effect in the aeration compartment causing raw sewage to circulate upwardly along a bottom surface of the baffle.
Inventors
- 👤 L Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:56
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1242; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
373 words
A waste treatment tank having means for supplying air for carrying out an aeration process on raw sewage, which comprises: an enclosure having an inlet for raw sewage and an outlet for removal of process waste therethrough, said enclosure including a bottom wall; a baffle mounted in said enclosure, having a top wall and a bottom wall, dividing said enclosure angularly into two compartments, said compartments comprising a clarification section along said top baffle wall and an aeration section along said bottom baffle wall, said baffle including an upper edge, and a lower edge extending along said bottom wall of said enclosure, said lower edge having at least three, spaced, serially arranged openings in it permitting communication between said aeration and said clarification sections, two of said openings along said lower baffle edge being placed near said enclosure and the third of said openings being inboard of and spaced from said two openings, said upper baffle edge having an opening in it, said baffle preventing liquid communication between said aeration and said clarification sections along said upper edge of said baffle, except along said upper edge opening; an aeration system adapted to supply air from said air supply means to said aeration section, arranged and carried by said bottom baffle wall so as to circulate said sewage upwardly along said bottom baffle wall; means for removing solid waste from said clarification section, said solid waste removing means comprising an air skimmer adapted to direct a current of air through said upper edge opening in said baffle; a first flow director mounted in said aeration section in front of one of the outboard ones of said three bottom edge openings, said first flow director having a width less than the width of said enclosure bottom wall, adapted to direct flow toward said inboard opening of said lower baffle edge, aLong said enclosure bottom wall; and a second flow director mounted in said aeration section in front of the other outboard ones of said three bottom edge openings near said enclosure, said second flow director having a width less than the width of said enclosure bottom wall, adapted to direct flow toward said inboard opening of said lower baffle edge, along said enclosure bottom wall.
Claim 2
Dependent Claim
373 words
A waste treatment tank having means for supplying air for carrying out an aeration process on raw sewage, which comprises: an enclosure having an inlet for raw sewage and an outlet for removal of process waste therethrough, said enclosure including a bottom wall; a baffle mounted in said enclosure, having a top wall and a bottom wall, dividing said enclosure angularly into two compartments, said compartments comprising a clarification section along said top baffle wall and an aeration section along said bottom baffle wall, said baffle including an upper edge, and a lower edge extending along said bottom wall of said enclosure, said lower edge having at least three, spaced, serially arranged openings in it permitting communication between said aeration and said clarification sections, two of said openings along said lower baffle edge being placed near said enclosure and the third of said openings being inboard of and spaced from said two openings, said upper baffle edge having an opening in it, said baffle preventing liquid communication between said aeration and said clarification sections along said upper edge of said baffle, except along said upper edge opening; an aeration system adapted to supply air from said air supply means to said aeration section, arranged and carried by said bottom baffle wall so as to circulate said sewage upwardly along said bottom baffle wall; means for removing solid waste from said clarification section, said solid waste removing means comprising an air skimmer adapted to direct a current of air through said upper edge opening in said baffle; a first flow director mounted in said aeration section in front of one of the outboard ones of said three bottom edge openings, said first flow director having a width less than the width of said enclosure bottom wall, adapted to direct flow toward said inboard opening of said lower baffle edge, aLong said enclosure bottom wall; and a second flow director mounted in said aeration section in front of the other outboard ones of said three bottom edge openings near said enclosure, said second flow director having a width less than the width of said enclosure bottom wall, adapted to direct flow toward said inboard opening of said lower baffle edge, along said enclosure bottom wall.
Claim 3
Dependent Claim
31 words
The waste treatment tank of claim 1 further characterized by a third flow director mounted in said aeration section approximately 90* from each of said first and said second flow directors.
Claim 4
Dependent Claim
56 words
The waste treatment tank of claim 2 further characterized by a T-shaped drain, the cross of said T-shape having an upper surface with at least one opening therein, said drain being communicatively arranged between said clarification section and said enclosure outlet and positioned within said enclosure so as to be below the height of said outlet.
Claim 5
Dependent Claim
27 words
The waste treatment tank of claim 3 wherein said air supply means provides air to both of said aeration supply system and said solid waste removing means.
Claim 6
Dependent Claim
353 words
A waste treatment tank having means for supplying air for carrying out an aeration process on raw sewage, which comprises: a cylindrical enclosure, said enclosure having a top wall, a bottom wall, and a side wall, said side wall having an inlet for raw sewage and an outlet for removal of process waste extending from and through said side wall, positioned near said top wall; an elliptical baffle, mounted in said enclosure, having a top wall and a bottom wall dividing said enclosure angularly into two substantially equal volumetric compartments, said compartments comprising a clarification section along said top baffle wall and an aeration section along said bottom baffle wall, said baffle including an upper edge and a lower edge, said lower edge having at least three spaced openings in it, at least two of said openings in said lower edge lying outboard and on opposite sides of a central opening, said lower edge openings permitting communication between said aeration and said clarification sections, said upper edge having an opening in it, said baffle preventing liquid communication between said aeration and said clarification sections at said upper edge except along said upper edge opening; means for removing solid waste from said clarification section, said solid waste removing means comprising an air skimmer adapted to direct a curtain of air through said upper edge opening in said baffle; a first flow director mounted in said aeration section of said enclosure in front of one of said outboard openings, said first flow director having a width less than the width of said enclosure bottom wall, adapted to direct flow toward said central opening in said lower baffle edge; a second flow director mounted in said aeration section in front of the other of said outboard openings in said bottom edge of said baffle, said second flow director having a width of less than the width of said enclosure bottom wall, adapted to direct flow toward said central opening in said lower baffle edge; and a third flow director mounted in said aeration section approximately 90* from each of said first and said second flow directors.
Claim 7
Dependent Claim
353 words
A waste treatment tank having means for supplying air for carrying out an aeration process on raw sewage, which comprises: a cylindrical enclosure, said enclosure having a top wall, a bottom wall, and a side wall, said side wall having an inlet for raw sewage and an outlet for removal of process waste extending from and through said side wall, positioned near said top wall; an elliptical baffle, mounted in said enclosure, having a top wall and a bottom wall dividing said enclosure angularly into two substantially equal volumetric compartments, said compartments comprising a clarification section along said top baffle wall and an aeration section along said bottom baffle wall, said baffle including an upper edge and a lower edge, said lower edge having at least three spaced openings in it, at least two of said openings in said lower edge lying outboard and on opposite sides of a central opening, said lower edge openings permitting communication between said aeration and said clarification sections, said upper edge having an opening in it, said baffle preventing liquid communication between said aeration and said clarification sections at said upper edge except along said upper edge opening; means for removing solid waste from said clarification section, said solid waste removing means comprising an air skimmer adapted to direct a curtain of air through said upper edge opening in said baffle; a first flow director mounted in said aeration section of said enclosure in front of one of said outboard openings, said first flow director having a width less than the width of said enclosure bottom wall, adapted to direct flow toward said central opening in said lower baffle edge; a second flow director mounted in said aeration section in front of the other of said outboard openings in said bottom edge of said baffle, said second flow director having a width of less than the width of said enclosure bottom wall, adapted to direct flow toward said central opening in said lower baffle edge; and a third flow director mounted in said aeration section approximately 90* from each of said first and said second flow directors.
Claim 8
Dependent Claim
345 words
A waste treatment tank having means for supplying air for carrying out an aeration process on raw sewage, which comprises: an enclosure including a bottom wall, said enclosure having an inlet for raw sewage and an outlet for removal of process waste therethrough; a baffle mounted in said enclosure, having a top wall and a bottom wall, dividing said enclosure angularly into two compartments, said compartments comprising a clarification section along said top baffle wall and an aeration section along said bottom baffle wall, said baffle including an upper edge and a lower edge, said lower edge having at least three spaced openings along it, at least two of said openings in said lower edge being outboard and on opPosite sides of a central opening, said upper edge having an opening in it, said upper edge of said baffle preventing liquid communication between said aeration and said clarification sections except along said upper edge opening; an aeration supply system adapted to supply air from said air supply means to said aeration section, arranged and carried by said bottom baffle wall so as to circulate said sewage upwardly along said bottom baffle wall; a first flow director mounted in said aeration section adapted to direct flow toward said central opening in said lower baffle edge and to retard flow into said clarification section through at least one of said outboard openings, said first flow director having a width substantially less than the width of said bottom wall of said enclosure; a second flow director mounted in said aeration section of said enclosure adapted to direct flow toward said central opening in said lower baffle edge and to retard flow into said clarification section through at least the other one of said outboard openings, said second flow director having a width substantially less than the width of said bottom wall of said enclosure; and means for removing solid waste from said clarification section, said solid waste removing means comprising an air skimmer adapted to direct a current of air through said upper edge opening in said baffle.
Claim 9
Dependent Claim
345 words
A waste treatment tank having means for supplying air for carrying out an aeration process on raw sewage, which comprises: an enclosure including a bottom wall, said enclosure having an inlet for raw sewage and an outlet for removal of process waste therethrough; a baffle mounted in said enclosure, having a top wall and a bottom wall, dividing said enclosure angularly into two compartments, said compartments comprising a clarification section along said top baffle wall and an aeration section along said bottom baffle wall, said baffle including an upper edge and a lower edge, said lower edge having at least three spaced openings along it, at least two of said openings in said lower edge being outboard and on opPosite sides of a central opening, said upper edge having an opening in it, said upper edge of said baffle preventing liquid communication between said aeration and said clarification sections except along said upper edge opening; an aeration supply system adapted to supply air from said air supply means to said aeration section, arranged and carried by said bottom baffle wall so as to circulate said sewage upwardly along said bottom baffle wall; a first flow director mounted in said aeration section adapted to direct flow toward said central opening in said lower baffle edge and to retard flow into said clarification section through at least one of said outboard openings, said first flow director having a width substantially less than the width of said bottom wall of said enclosure; a second flow director mounted in said aeration section of said enclosure adapted to direct flow toward said central opening in said lower baffle edge and to retard flow into said clarification section through at least the other one of said outboard openings, said second flow director having a width substantially less than the width of said bottom wall of said enclosure; and means for removing solid waste from said clarification section, said solid waste removing means comprising an air skimmer adapted to direct a current of air through said upper edge opening in said baffle.
Claim 10
Dependent Claim
18 words
The waste treatment tank of claim 6 wherein said baffle divides said enclosure into substantially equal volumetric compartments.
Claim 11
Dependent Claim
56 words
The waste treatment tank of claim 7 further characterized by a T-shaped drain, the cross of said T having an upper surface with at least one opening therein, said drain being communicatively arranged between said clarification section and said enclosure outlet and positioned within said enclosures so as to be below the heigth of said outlet.
Claim 12
Dependent Claim
29 words
The tank of claim 8 further characterized by a third flow director mounted in said aeration section approximately 90* from each of said first and said second flow directors.
Claim 13
Dependent Claim
18 words
The waste treatment tank of claim 9 wherein each of said flow directors are substantially rectangular in plan.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |