US3232434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for purifying waste waters
Assignee: Hitachi Zosen Inova Steinmueller GmbH
•
Filing: 1962-09-05
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Granted: 1966-02-01
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Expires: 1982-09-05
Abstract
No abstract record available.
Inventors
- 👤 Albersmeyer Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:17
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/06; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
AN APPARATUS FOR FULY BIOLOGICALLY PURIFYING DOMESTIC AND INDUSTRIAL WASTE WATERS, WHICH COMPRISES: A TUBULAR PURIFYING TOWER FILLED WITH A FILLING SUBSTANCE SELECTED FROM THE GROUP OF POROUS GRANULAR SUBSTANCES CONSISTING OF LAVA SLAG AND COKE, SAID TOWER HAVING ITS LOWER PORTION PROVIDED WITH INLET PIPE MEANS FOR ADMITTING THE WASTE WATER TO BE PURIFIFED, SAID INLET PIPE MEANS BEING PROVIDED WITH A CONSTRICTION, AIR INLET MEANS ARRANGED AT SAID CONSTRICTION FOR ADMITTING AIR INTO SAID TOWER FROM THE ATMOSPHERE IN RESPONSE TO FLOW OF WATER THROUGH SAID CONSTRICTION, A COMPRESSED AIR RESERVOIR, CONDUIT MEANS LEADING INTO SAID TOWER FROM SAID RESERVOIR, SAID CONDUIT MEANS LEADING INTO SAID TOWER AT DIFFERENT LEVELS WHILE AT EACH LEVEL THERE ARE PROVIDED A PLURALITY OF SAID CONDUIT MEANS SUBSTANTIALLY EVENLY DISTRIBUTED OVER THE CIRCUMFERENCE OF SAID TOWER, AND COMPRESSOR MEANS CONNECTED TO SAID RESERVOIR FOR CHARGING THE SAME.
Claim 2
Independent Claim
145 words
AN APPARATUS FOR FULY BIOLOGICALLY PURIFYING DOMESTIC AND INDUSTRIAL WASTE WATERS, WHICH COMPRISES: A TUBULAR PURIFYING TOWER FILLED WITH A FILLING SUBSTANCE SELECTED FROM THE GROUP OF POROUS GRANULAR SUBSTANCES CONSISTING OF LAVA SLAG AND COKE, SAID TOWER HAVING ITS LOWER PORTION PROVIDED WITH INLET PIPE MEANS FOR ADMITTING THE WASTE WATER TO BE PURIFIFED, SAID INLET PIPE MEANS BEING PROVIDED WITH A CONSTRICTION, AIR INLET MEANS ARRANGED AT SAID CONSTRICTION FOR ADMITTING AIR INTO SAID TOWER FROM THE ATMOSPHERE IN RESPONSE TO FLOW OF WATER THROUGH SAID CONSTRICTION, A COMPRESSED AIR RESERVOIR, CONDUIT MEANS LEADING INTO SAID TOWER FROM SAID RESERVOIR, SAID CONDUIT MEANS LEADING INTO SAID TOWER AT DIFFERENT LEVELS WHILE AT EACH LEVEL THERE ARE PROVIDED A PLURALITY OF SAID CONDUIT MEANS SUBSTANTIALLY EVENLY DISTRIBUTED OVER THE CIRCUMFERENCE OF SAID TOWER, AND COMPRESSOR MEANS CONNECTED TO SAID RESERVOIR FOR CHARGING THE SAME.
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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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |