US3724664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewage treatment system
Assignee: MO ENG CORP
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Filing: 1971-01-25
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Granted: 1973-04-03
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Expires: 1991-01-25
Abstract
Abstract A sewage treatment system especially adapted for residential usage comprising a below ground tank having a settlement chamber for receiving raw sewage, and an aeration chamber in communication therewith; there being a submersible pump within said aeration chamber, an above ground sprinkler, and a control valve connecting said sprinkler and said submersible pump. Said valve is of two position character; in one position, effluent is recirculated within said aeration chamber, and in said other position, effluent is discharged through said sprinkler for dispersion within the surrounding area; and means being provided for entraining air into effluent during recirculation. The operation of said control valve, together with said pump, is governed by timing means.
Inventors
- 👤 R Lemberger
- 👤 J Gilmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:44
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1242; C02F3/006; C02F3/04; C02F3/046; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
87 words
A sewage treatment system comprising means defining a belowground tank for receiving sewage, sewage effluent sprinkler means provided above-ground, a sewage pump provided within said tank and having a discharge end, first means interposed between said pump discharge end and said sprinkler means for communicating the one with the other, second means interposed between said pump discharge end and the interior of said tank for communicating the one with the other, and valve means disposed between said pump discharge end and said first and second interposed means.
Claim 2
Dependent Claim
87 words
A sewage treatment system comprising means defining a belowground tank for receiving sewage, sewage effluent sprinkler means provided above-ground, a sewage pump provided within said tank and having a discharge end, first means interposed between said pump discharge end and said sprinkler means for communicating the one with the other, second means interposed between said pump discharge end and the interior of said tank for communicating the one with the other, and valve means disposed between said pump discharge end and said first and second interposed means.
Claim 3
Dependent Claim
36 words
A sewage treatment system as defined in claim 1 and further characterized by means dividing said tank into a settlement chamber and an aeration chamber, said pump being located within said aeration chamber of said tank.
Claim 4
Dependent Claim
78 words
A sewage treatment system as defined in claim 1 and further characterized by said valve means comprising a valve body having first and second compartments, said first compartment being located within said first interposed means, said second compartment being disposed within said said interposed means, a valve member provided within said valve body and operable between said first and second compartments for selectedly operatively connecting said pump with said sprinkler means or with the interior of the tank.
Claim 5
Dependent Claim
40 words
A sewage treatment system as defined in claim 3 and further characterized by a safety float switch, means operatively connecting said float switch to said pump to permit operation of the same at a preselected effluent level in said tank.
Claim 6
Dependent Claim
48 words
A sewage treatment system as defined in claim 4 and further characterized by a second safety float switch, means operatively connecting said second safety float switch to said valve means whereby the latter is operable at a predetermined effluent level above that of said other safety float switch.
Claim 7
Dependent Claim
62 words
A sewage treatment system as defined in claim 5 and further characterized by said safety float switch and said second safety float switch each comprising a float body, a mercury switch encased within said body, terminals provided within said mercury switch for circuit closing condition when the main axis of said float body is disposed at a predetermined angle to the horizontal.
Claim 8
Dependent Claim
105 words
A sewage treatment system as defined in claim 3 and further characterized by said sprinkler means comprising a sprinkler head disposable above ground level for effluent dispersion consequent to effluent pressure, first conduit means connecting said sprinkler head with said valve body second compartment, second conduit means connecting said pump and said first compartment of said valve body, means defining a by-pass tube extending between said second compartment of said valve body and said second conduit meanS for establishing air flow between the atmosphere and said second conduit means for entrainment of air into the effluent pumped into said first compartment of said valve body.
Claim 9
Dependent Claim
36 words
A sewage treatment system as defined in claim 7 and further characterized by said second conduit means having a pressure-reducing, constricted passage at the point of connection to said by-pass tube means for air suction purposes.
Claim 10
Dependent Claim
127 words
A sewage treatment system comprising means defining a below-ground tank for receiving sewage, sewage effluent sprinkler means provided above-ground, a pump provided within said tank, valve means connected to said pump, means interconnecting said valve means and said sprinkler means, said valve means comprising a valve body having first and second compartments, said first compartment communicating with said pump, said second compartment communicating with said sprinkler means, a valve member provided within said valve body and operable between said first and second compartments for selectedly operatively connecting said pump and said sprinkler means, said valve body having a discharge opening communicating with said first compartment to permit recirculating flow of effluent within said tank by movement through said first compartment and said discharge opening from said pump.
Claim 11
Dependent Claim
127 words
A sewage treatment system comprising means defining a below-ground tank for receiving sewage, sewage effluent sprinkler means provided above-ground, a pump provided within said tank, valve means connected to said pump, means interconnecting said valve means and said sprinkler means, said valve means comprising a valve body having first and second compartments, said first compartment communicating with said pump, said second compartment communicating with said sprinkler means, a valve member provided within said valve body and operable between said first and second compartments for selectedly operatively connecting said pump and said sprinkler means, said valve body having a discharge opening communicating with said first compartment to permit recirculating flow of effluent within said tank by movement through said first compartment and said discharge opening from said pump.
Claim 12
Dependent Claim
28 words
A sewage treatment system as defined in claim 9 and further characterized by means for entraining air within said effluent prior to its arrival at said first compartment.
Claim 13
Dependent Claim
60 words
A sewage treatment system as defined in claim 9 and further characterized by means for moving said valve member between a first position permitting communication between said first and second compartments and a second position preventing communication between said first and second compartments, and timing means causing said valve member to be moved into said first position at preselected intervals.
Claim 14
Dependent Claim
42 words
A sewage treatment system as defined in claim 11 and further characterized by said means for moving said valve member comprising a thermal hydraulic motor, a source of power, and circuit means connecting said source of power and said thermal hydraulic motor.
Claim 15
Dependent Claim
29 words
A sewage treatment system as defined in claim 11 and further characterized by said valve member being in said second position during recirculating flow of effluent within said tank.
Claim 16
Dependent Claim
132 words
A sewage treatment system comprising means defining a below-ground tank for receiving sewage, sewage effluent sprinkler means provided above-ground, a sewage pump provided within said tank and having a discharge end, first means interposed between said pump discharge end and said sprinkler means for communicating the one with the other, second means interposed between said pump discharge end and the interior of said tank for communicating the one with the other, a first valve means disposed between said pump discharge end and said first and second interposed means, a second valve means disposed between said sprinkler means and said first valve means within said second interposed means, said sprinkler means comprising a sprinkler head, and conduit-forming engaged to said second valve means located above said tank and between same and ground lever.
Claim 17
Dependent Claim
132 words
A sewage treatment system comprising means defining a below-ground tank for receiving sewage, sewage effluent sprinkler means provided above-ground, a sewage pump provided within said tank and having a discharge end, first means interposed between said pump discharge end and said sprinkler means for communicating the one with the other, second means interposed between said pump discharge end and the interior of said tank for communicating the one with the other, a first valve means disposed between said pump discharge end and said first and second interposed means, a second valve means disposed between said sprinkler means and said first valve means within said second interposed means, said sprinkler means comprising a sprinkler head, and conduit-forming engaged to said second valve means located above said tank and between same and ground lever.
References Cited (Backward Citations)
US3025962A
Cited
US3306447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |