Patent US4207389A successfully refreshed from Google Patents.
Patent US3695439A successfully refreshed from Google Patents.
US3695439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste treatment systems
Assignee: Individual
•
Filing: 1970-10-12
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Granted: 1972-10-03
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Expires: 1990-10-12
Abstract
Abstract A sewage disposal apparatus is provided having an outer cylindrical tank on a vertical axis, a conical end closing the bottom of the cylindrical tank, an inner cylinder concentric with and within the outer tank, a source of oxygen containing gas under pressure, a gas diffuser means adjacent the bottom of the inner cylinder connected to said source of oxygen containing gas and discharging said gas within the inner cylinder, a sewage inlet line discharging into the inner cylinder with comminuting means in the inlet line, and a pump means extending from the point adjacent the apex of the cone to the inlet line delivering fluid and solids from the cone apex to the inlet line and discharge means from the area between the outer cylindrical tank and the inner cylinder.
Inventors
- 👤 Herman K Dupre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:38
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: 7
Claim 1
Independent Claim
145 words
A sewage disposal device comprising an outer cylindrical tank on a vertical axis, a conical end closing the bottom of said cylinder, an inner cylinder open at both ends concentric with and inside the tank, a source of oxygen containing gas under pressure, a gas diffuser means adjacent the bottom open end of the inner cylinder connected to said source of oxygen containing gas and discharging said oxygen containing gas within said inner cylinder, a sewage inlet line discharging into the inner cylinder, comminuting means in the inlet line, and pump means extending from a point adjacent the apex of the cone to the inlet line continuously delivering fluid and solids from the cone apex to the inlet line for mixture with sewage prior to Discharge into the inner cylinder and discharge means from the area between the outer cylindrical tank and the inner cylinder.
Claim 2
Dependent Claim
145 words
A sewage disposal device comprising an outer cylindrical tank on a vertical axis, a conical end closing the bottom of said cylinder, an inner cylinder open at both ends concentric with and inside the tank, a source of oxygen containing gas under pressure, a gas diffuser means adjacent the bottom open end of the inner cylinder connected to said source of oxygen containing gas and discharging said oxygen containing gas within said inner cylinder, a sewage inlet line discharging into the inner cylinder, comminuting means in the inlet line, and pump means extending from a point adjacent the apex of the cone to the inlet line continuously delivering fluid and solids from the cone apex to the inlet line for mixture with sewage prior to Discharge into the inner cylinder and discharge means from the area between the outer cylindrical tank and the inner cylinder.
Claim 3
Dependent Claim
24 words
A sewage disposal apparatus as claimed in claim 1 wherein the source of oxygen containing gas is a means for supplying air under pressure.
Claim 4
Dependent Claim
19 words
A sewage disposal apparatus as claimed in claim 1 wherein the gas diffuser means is a perforate annular ring.
Claim 5
Dependent Claim
18 words
A sewage disposal apparatus as claimed in claim 1 wherein the pump means is an air lift means.
Claim 6
Dependent Claim
23 words
A sewage disposal apparatus as claimed in claim 3 wherein the annular ring is adjacent and within the bottom of the inner cylinder.
Claim 7
Dependent Claim
36 words
A sewage disposal apparatus as claimed in claim 1 wherein the discharge means communicates with the said area between the outer cylindrical tank and the inner cylinder and below the normal surface level of fluid therein.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |