US3345272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple effect purification of contaminated fluids by direct gaseous flow contact
Assignee: Individual
•
Filing: 1965-05-14
•
Granted: 1967-10-03
•
Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Richard A Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:54
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/34; B01D3/343; B01D3/346; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
223 words
A METHOD FOR PURIFYING A CONTAMINATED LIQUID COMPRISING THE STEPS OF HEATING THE CONTAMINATED LIQUID, PASSING SAID HEATED LIQUID INTO AN EVAPORATOR WHEREIN IT FLOWS THROUGH A DEVOUS PATH, PASSING A STREAM OF GAS INTO SAID EVAPORATOR TO FLOW COUNTERCURRENT TO THE FLOW OF SAID HEATED LIQUID WHEREBY EVAPORATION OF HEATED LIQUID INTO THE GAS OCCURS TO FORM A GAS-VAPOR MIXTURE CARRIED ALONG AS PART OF THE GAS STREAM, SIMULTANEOUSLY DIVERTING PORTIONS OF SAID GAS STREAM MIXTURE AT A PLURALITY OF SEPARATED POINTS PART WAY ALONG SAID DEVIOUS PATH THROUGH SAID EVAPORATOR, TO FLOW AWAY FROM THE EVAPORATOR AND INTO CHANNELS DIRECTING SAID DIVERTED PORTIONS TO PASS THROUGH A CONDENSER, THE REMAINDERS OF SAID GAS STREAM MIXTURE CONTINUING TO FLOW COUNTERCURRENT TO THE FLOW OF SAID HEATED LIQUID WHEREBY ADDITIONAL VAPOR FOM THE LIQUID IS ABSORBED INTO THE REMAINDERS OF SAID GAS STREAM, AND AT THE END OF SAID DEVIOUS PATH THROUGH SAID EVAPORATOR DIRECTING THE GAS STREAM MIXTURE OUT OF SAID EVAPORATOR AND INTO A CHANNEL THROUGH WHICH SAID END GAS STREAM MIXTURE TRAVERSES THE CONDENSER, COLLECTING THE PURIFIED LIQUID PRODUCED BY THE CONDENSATION OF THE VAPOR IN SAID GAS STREAM MIXTURES PASSING THROUGH THE CONDENSER, DIRECTING THE VAPOR DEPLETED GAS STREAM DISCHARGED FROM THE CONDENSER INTO SAID EVAPORATOR TO FLOW COUNTERCURRENT TO THE FLOW OF SAID HEATED LIQUID, CHANNELING SAID HEATED
Claim 2
Independent Claim
223 words
A METHOD FOR PURIFYING A CONTAMINATED LIQUID COMPRISING THE STEPS OF HEATING THE CONTAMINATED LIQUID, PASSING SAID HEATED LIQUID INTO AN EVAPORATOR WHEREIN IT FLOWS THROUGH A DEVOUS PATH, PASSING A STREAM OF GAS INTO SAID EVAPORATOR TO FLOW COUNTERCURRENT TO THE FLOW OF SAID HEATED LIQUID WHEREBY EVAPORATION OF HEATED LIQUID INTO THE GAS OCCURS TO FORM A GAS-VAPOR MIXTURE CARRIED ALONG AS PART OF THE GAS STREAM, SIMULTANEOUSLY DIVERTING PORTIONS OF SAID GAS STREAM MIXTURE AT A PLURALITY OF SEPARATED POINTS PART WAY ALONG SAID DEVIOUS PATH THROUGH SAID EVAPORATOR, TO FLOW AWAY FROM THE EVAPORATOR AND INTO CHANNELS DIRECTING SAID DIVERTED PORTIONS TO PASS THROUGH A CONDENSER, THE REMAINDERS OF SAID GAS STREAM MIXTURE CONTINUING TO FLOW COUNTERCURRENT TO THE FLOW OF SAID HEATED LIQUID WHEREBY ADDITIONAL VAPOR FOM THE LIQUID IS ABSORBED INTO THE REMAINDERS OF SAID GAS STREAM, AND AT THE END OF SAID DEVIOUS PATH THROUGH SAID EVAPORATOR DIRECTING THE GAS STREAM MIXTURE OUT OF SAID EVAPORATOR AND INTO A CHANNEL THROUGH WHICH SAID END GAS STREAM MIXTURE TRAVERSES THE CONDENSER, COLLECTING THE PURIFIED LIQUID PRODUCED BY THE CONDENSATION OF THE VAPOR IN SAID GAS STREAM MIXTURES PASSING THROUGH THE CONDENSER, DIRECTING THE VAPOR DEPLETED GAS STREAM DISCHARGED FROM THE CONDENSER INTO SAID EVAPORATOR TO FLOW COUNTERCURRENT TO THE FLOW OF SAID HEATED LIQUID, CHANNELING SAID HEATED
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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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |