US3907679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewage treatment system including effluent evaporator
Assignee: Coate Burial Vault Inc
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Filing: 1973-03-26
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Granted: 1975-09-23
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Expires: 1993-03-26
Abstract
Abstract Clear effluent from an aerobic sewage treatment tank is directed into one end of an elongated conduit adapted to be buried in the ground with the tank. The conduit has a length of many hundred feet and is preferably wrapped in the form of a substantially horizontal spiral coil. The opposite end of the conduit is vented to atmosphere, and a flow of air is directed from a supply pump through the conduit over the surface of the effluent to effect evaporation of the effluent into the air stream and discharge of the vapor with the air into the atmosphere. The air is directed into the conduit in a plurality of separate streams located at longitudinally spaced intervals and after moisture is removed from the air within a pressure-condensing container. The conduit is preferably formed of a corrugated flexible tubing of plastics material and may be constructed in a plurality of stacked coil sections which are connected in series.
Inventors
- 👤 Kenneth J Yost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:05
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/10; B; B01; B01D; B01D1/00; B01D1/02; C02F1/048; C02F3/00; C02F3/28; Y; Y10; Y10S; Y10S159/00; Y10S159/905; Y10S203/00; Y10S203/05
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
231 words
IN A SEWAGE TREATMENT INCLUDING A TANK BURIED WITHIN THE GROUND AND HAVING AN INLET FOR RECEIVING SEWAGE WATER AND AN OUTLET FOR DISCHARGING A SUBSTANTIALLY CLEAR WATER EFFLUENT, AN IMPROVED DEVICE FOR EVAPORATING THE EFFLUENT INTO THE ATMOSPHERE, COMPRISING AN ELONGATED FLEXIBLE TUBULAR CONDUIT SYSTEM OF PLASTICS MATERIAL, SAID CONDUIT SYSTEM ARRANGED TO FROM A SUBSTANTIALLY FLAT HORIZONTAL COIL BURIED WITHIN THE GROUND, SAID CONDUIT SYSTEM HAVING AN INLET END PORTION CONNECTED TO SAID OUTLET OF SAID TANK FOR RECEIVING THE EFFLUENT WITHIN THE LOWER PORTION OF THE CONDUIT SYSTEM AND FOR EXPOSING A SUBSTANTIAL SURFACE AREA OF THE EFFLUENT ALONG THE LENGTH OF SAID CONDUIT SYSTEM, SAID CONDUIT SYSTEM HAVING AN OUTLET END PORTION, MEANS FOR VENTING SAID OUTLET END PORTION TO THE ATMOSPHERE ABOVE THE GROUND, AIR SUPPLY TUBE MEANS CONNECTED TO SAID CONDUIT SYSTEM AT A PLURALITY OF LONGITUDINALLY SPACED INTERVALS ALONG SAID CONDUIT SYSTEM, MEANS FOR SUPPLYING AIR FLOW WITHIN SAID AIR SUPPLY TUBE MEANS TO PRODUCE A CORRESPONDING PLURALITY OF AIR STREAMS INTO SAID CONDUIT SYSTEM, AND SAID AIR STREAMS BEING EFFECTIVE TO PRODUCE A LONGITUDINAL FLOW OF AIR IN A COMMON DIRECTION WITHIN THE UPPER PORTION OF SAID CONDUIT SYSTEM FOR VAPORIZING THE EFFLUENT WITHIN SAID CONDUIT SYSTEMS INTO THE FLOW OF AIR WITHIN SAID CONDUIT SYSTEM FOR DISCHARGE AS A VAPOR INTO THE ATMOSPHER THROUGH SAID OUTLET END PORTION OF SAID CONDUIT SYSTEM.
Claim 2
Dependent Claim
231 words
IN A SEWAGE TREATMENT INCLUDING A TANK BURIED WITHIN THE GROUND AND HAVING AN INLET FOR RECEIVING SEWAGE WATER AND AN OUTLET FOR DISCHARGING A SUBSTANTIALLY CLEAR WATER EFFLUENT, AN IMPROVED DEVICE FOR EVAPORATING THE EFFLUENT INTO THE ATMOSPHERE, COMPRISING AN ELONGATED FLEXIBLE TUBULAR CONDUIT SYSTEM OF PLASTICS MATERIAL, SAID CONDUIT SYSTEM ARRANGED TO FROM A SUBSTANTIALLY FLAT HORIZONTAL COIL BURIED WITHIN THE GROUND, SAID CONDUIT SYSTEM HAVING AN INLET END PORTION CONNECTED TO SAID OUTLET OF SAID TANK FOR RECEIVING THE EFFLUENT WITHIN THE LOWER PORTION OF THE CONDUIT SYSTEM AND FOR EXPOSING A SUBSTANTIAL SURFACE AREA OF THE EFFLUENT ALONG THE LENGTH OF SAID CONDUIT SYSTEM, SAID CONDUIT SYSTEM HAVING AN OUTLET END PORTION, MEANS FOR VENTING SAID OUTLET END PORTION TO THE ATMOSPHERE ABOVE THE GROUND, AIR SUPPLY TUBE MEANS CONNECTED TO SAID CONDUIT SYSTEM AT A PLURALITY OF LONGITUDINALLY SPACED INTERVALS ALONG SAID CONDUIT SYSTEM, MEANS FOR SUPPLYING AIR FLOW WITHIN SAID AIR SUPPLY TUBE MEANS TO PRODUCE A CORRESPONDING PLURALITY OF AIR STREAMS INTO SAID CONDUIT SYSTEM, AND SAID AIR STREAMS BEING EFFECTIVE TO PRODUCE A LONGITUDINAL FLOW OF AIR IN A COMMON DIRECTION WITHIN THE UPPER PORTION OF SAID CONDUIT SYSTEM FOR VAPORIZING THE EFFLUENT WITHIN SAID CONDUIT SYSTEMS INTO THE FLOW OF AIR WITHIN SAID CONDUIT SYSTEM FOR DISCHARGE AS A VAPOR INTO THE ATMOSPHER THROUGH SAID OUTLET END PORTION OF SAID CONDUIT SYSTEM.
Claim 3
Dependent Claim
16 words
A sewage treatment system as defined in claim 1 wherein said coil comprises a spiral configuration.
Claim 4
Dependent Claim
15 words
A sewage treatment system as defined in claim 2 wherein said coil is substantially circular.
Claim 5
Dependent Claim
37 words
A sewage treatment system as defined in claim 1 including a plurality of said coils arranged in generally vertical stacked relation, and means connecting said coils for directing effluent and air longitudinally through each of said coils.
Claim 6
Dependent Claim
17 words
A sewage treatment system as defined in claim 4 wherein said conduit sections are connected in series.
Claim 7
Dependent Claim
34 words
A sewage treatment system as defined in claim 1 including means for directing each stream of air into said conduit system at an acute angle and in the same direction as the effluent flow.
Claim 8
Dependent Claim
21 words
A sewage treatment system as defined in claim 1 wherein said conduit system has a length of at least 250 feet.
Claim 9
Dependent Claim
21 words
A sewage treatment system as defined in claim 1 wherein said conduit system has a length of at least 500 feet.
Claim 10
Independent Claim
143 words
A method for evaporating an effluent discharged from the outlet of a sewage treatment tank buried within the ground, comprising the steps of arranging an elongated flexible tubular conduit system to form a substantially flat coil, positioning said coil in a substantially horizontal plane within the ground, directing the effluent into the lower portion of the conduit system to expose a substantial surface area of the effluent along the length of said conduit system, directing a flow of air into said conduit system at a plurality of longitudinally spaced intervals for producing a longitudinal flow of air in a common direction within the upper portion of said conduit system over the exposed surface of the effluent for vaporizing the effluent into the air within said conduit system, and venting the vapor upwardly to atmosphere through an outlet end portion of said conduit system.
Claim 11
Independent Claim
143 words
A method for evaporating an effluent discharged from the outlet of a sewage treatment tank buried within the ground, comprising the steps of arranging an elongated flexible tubular conduit system to form a substantially flat coil, positioning said coil in a substantially horizontal plane within the ground, directing the effluent into the lower portion of the conduit system to expose a substantial surface area of the effluent along the length of said conduit system, directing a flow of air into said conduit system at a plurality of longitudinally spaced intervals for producing a longitudinal flow of air in a common direction within the upper portion of said conduit system over the exposed surface of the effluent for vaporizing the effluent into the air within said conduit system, and venting the vapor upwardly to atmosphere through an outlet end portion of said conduit system.
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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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |