US3687299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank for the purification of waste water
Assignee: Individual
•
Filing: 1971-05-18
•
Granted: 1972-08-29
•
Expires: 1991-05-18
Abstract
Abstract A tank for water purification with a sludge remover rotatable within the same to scoop up sludge from the tank bottom; the sludge remover thereby includes a scoop connected with a suction pipe leading to a discharge conduit in such a manner that the sludge scooped up by the scoop is conveyed to its ultimate destination for further treatment by suction effect.
Inventors
- 👤 Joh Conrad Stengelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:28
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/02; B01D21/24; B01D21/245
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
122 words
A tank for the purification of waste water with a sludge remover means slowly rotatable about an axis disposed above the waste water level and guided along a substantially semicircularly shaped tank bottom, characterized in that the sludge remover means includes a scoop means substantially matched to the width of the tank, and suction pipe means connected substantially to the lowest point of that portion of the scoop means forming the bottom thereof when the scoop means emerges out of the water, and simultaneously serving as support means for the scoop means to convey sediments from the tank bottom through the suction pipe means, during the rotation of the scoop means, to a discharge channel means disposed above the waste water level.
Claim 2
Dependent Claim
122 words
A tank for the purification of waste water with a sludge remover means slowly rotatable about an axis disposed above the waste water level and guided along a substantially semicircularly shaped tank bottom, characterized in that the sludge remover means includes a scoop means substantially matched to the width of the tank, and suction pipe means connected substantially to the lowest point of that portion of the scoop means forming the bottom thereof when the scoop means emerges out of the water, and simultaneously serving as support means for the scoop means to convey sediments from the tank bottom through the suction pipe means, during the rotation of the scoop means, to a discharge channel means disposed above the waste water level.
Claim 3
Dependent Claim
31 words
A tank with a sludge remover means according to claim 1, characterized in that the discharge channel means extends substantially coaxially to the axis of rotation of the sludge remover means.
Claim 4
Dependent Claim
75 words
A tank with a sludge remover means according to claim 2, characterized in that the suction pipe means terminates in a collecting chamber means disposed, during the emergence of the scoop means, substantially below the waste water level, and a connecting pipe means connected to the point of the chamber means which is highest at the instant of said emergence, said connecting pipe means simultaneously defining the axis of rotation for the sludge remover means.
Claim 5
Dependent Claim
54 words
A tank with a sludge remover means according to claim 3, characterized in that the parts of the connecting pipe means forming the axis of rotation for the sludge remover means are operatively connected, on the one hand, to a drive means and, on the other hand, are supported in the discharge channel means.
Claim 6
Dependent Claim
14 words
A tank according to claim 4, wherein said discharge channel means is tubularly shaped.
Claim 7
Dependent Claim
45 words
A tank with a sludge remover means according to claim 4, characterized in that the mouth of the suction pipe means terminating in the collecting chamber means is disposed, shortly prior to the emergence of the scoop means, at least approximately at the level thereof.
Claim 8
Dependent Claim
31 words
A tank with a sludge remover means according to claim 6, characterized in that the level of the mouth of the suction pipe means in the collecting chamber means is adjustable.
Claim 9
Dependent Claim
24 words
A tank according to claim 7, characterized in that the level of said mouth is adjustable by a sleeve means extending beyond the mouth.
Claim 10
Dependent Claim
42 words
A tank with a sludge remover means according to claim 7, characterized in that the height of the mouth of the suction pipe means in thE collecting chamber means is adjustable through an opening provided therein and sealable in a watertight manner.
Claim 11
Dependent Claim
34 words
A tank according to claim 9, characterized by a sleeve means threadably mounted over the mouth of the suction pipe means to adjust the height of the latter by rotation of the sleeve means.
Claim 12
Dependent Claim
37 words
A tank with a sludge remover means according to claim 7, characterized in that the level of the mouth of the suction pipe means can be displaced, by axially shifting a sleeve means mounted over said mouth.
Claim 13
Dependent Claim
31 words
A tank according to claim 11, characterized by rack and pinion drive means connected with said sleeve means and operable by an adjusting wheel disposed outside of the collecting chamber means.
Claim 14
Dependent Claim
38 words
A tank with a sludge remover means according to claim 7, characterized in that the volume of the collecting chamber means corresponds at least approximately to the volume of the scoop means and of the suction pipe means.
Claim 15
Dependent Claim
75 words
A tank with a sludge remover means according to claim 1, characterized in that the suction pipe means terminates in a collecting chamber means disposed, during the emergence of the scoop means, substantially below the waste water level, and a connecting pipe means connected to the point of the chamber means which is highest at the instant of said emergence, said connecting pipe means simultaneously defining the axis of rotation for the sludge remover means.
Claim 16
Dependent Claim
54 words
A tank with a sludge remover means according to claim 14, characterized in that the parts of the connecting pipe means forming the axis of rotation for the sludge remover means are operatively connected, on the one hand, to a drive means and, on the other hand, are supported in the discharge channel means.
Claim 17
Dependent Claim
14 words
A tank according to claim 15, wherein said discharge channel means is tubularly shaped.
Claim 18
Dependent Claim
45 words
A tank with a sludge remover means according to claim 14, characterized in that the mouth of the suction pipe means terminating in the collecting chamber means is disposed, shortly prior to the emergence of the scoop means, at lest approximately at the level thereof.
Claim 19
Dependent Claim
31 words
A tank with a sludge remover means according to claim 17, characterized in that the level of the mouth of the suction pipe means in the collecting chamber means is adjustable.
Claim 20
Dependent Claim
24 words
A tank according to claim 18, characterized in that the level of said mouth is adjustable by a sleeve means extending beyond the mouth.
Claim 21
Dependent Claim
42 words
A tank with a sludge remover means according to claim 18, characterized in that the height of the mouth of the suction pipe means in the collecting chamber means is adjustable through an opening provided therein and sealable in a watertight manner.
Claim 22
Dependent Claim
34 words
A tank according to claim 20, characterized by a sleeve means threadably mounted over the mouth of the suction pipe means to adjust the height of the latter by rotation of the sleeve means.
Claim 23
Dependent Claim
37 words
A tank with a sludge remover means according to claim 18, characterized in that the level of the mouth of the suction pipe means can be displaced by axially shifting a sleeve means mounted over said mouth.
Claim 24
Dependent Claim
38 words
A tank with a sludge remover means according to claim 3, characterized in that the volume of the collecting chamber means corresponds at least approximately to the volume of the scoop means and of the suction pipe means.
References Cited (Backward Citations)
US1986573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |