Patent CH241627A successfully refreshed from Google Patents.
US3291308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water purification system
Assignee: Individual
•
Filing: 1964-05-15
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Granted: 1966-12-13
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Expires: 1984-05-15
Abstract
No abstract record available.
Inventors
- 👤 Richard T Headrick
- 👤 Edward E Headrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:19
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; C02F1/001; C02F1/004; C02F1/28; C02F1/283; C02F1/288; C02F9/00; C02F9/20; C02F2201/00; C02F2201/008; C02F2209/00; C02F2209/40; C02F2303/00; C02F2303/04; C02F2303/16; C02F2303/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
APPARATUS FOR PURIFYING AND RENDERING PORTABLE WATER DRAWN FROM A SOURCE OF CONTAMINATED WATER COMPRISING: (1) INTAKE MEANS FOR DRAWING WATER FROM THE SOURCE OF CONTAMINATED WATER, (2) PROPORTIONING MEANS HAVING AN OUTLET AND AN INLET COUPLED TO THE INTAKE MEANS AND OPERABLE FOR ADDING TO WATER INTRODUCED THEREINTO A SUBSTANTIALLY WATER INSOLUBLE PREDETERMINED QUANTITY OF A PARTICULATE BACTERIOCIDAL AGENT IN PROPORTION TO THE QUANTITY OF THE INTRODUCED WATER, (3) FIRST FILTER MEANS HAVING AN OUTLET AND AN INLET COUPLED TO THE PROPORTIONING MEANS OUTLET AND OPERABLE FOR REMOVING FROM WATER CIRCULATED THERETHROUGH THE INSOLUBLE PARTICULATE BACTERIOCIDAL AGENT AND PARTICULATE MATTER DISPERSED AND SUSPENDED IN THE WATER, (4) DUCT MEANS COUPLED BETWEEN THE FIRST FILTER MEANS OUTLET AND THE PROPORTIONING MEANS FOR RECIRCULATING A SELECTED PORTION OF THE WATER CIRCULATED THROUGH THE FIRST FILTER MEANS FOR THE PROPORTIONING MEANS FOR ADDITION OF THE BACTERIOCIDAL AGENT THERETO, AND (5) SECOND FILTER MEANS COUPLED TO THE FIRST FILTER MEANS OUTLET FOR FURTHER BACTERIOCIDALLY TREATING AND FILTERING AND REMAINDER OF THE WATER CIRCULATE THROUGH THE FIRST FILTER MEANS TO RENDER THE SAME POTABLE.
Claim 2
Dependent Claim
180 words
APPARATUS FOR PURIFYING AND RENDERING PORTABLE WATER DRAWN FROM A SOURCE OF CONTAMINATED WATER COMPRISING: (1) INTAKE MEANS FOR DRAWING WATER FROM THE SOURCE OF CONTAMINATED WATER, (2) PROPORTIONING MEANS HAVING AN OUTLET AND AN INLET COUPLED TO THE INTAKE MEANS AND OPERABLE FOR ADDING TO WATER INTRODUCED THEREINTO A SUBSTANTIALLY WATER INSOLUBLE PREDETERMINED QUANTITY OF A PARTICULATE BACTERIOCIDAL AGENT IN PROPORTION TO THE QUANTITY OF THE INTRODUCED WATER, (3) FIRST FILTER MEANS HAVING AN OUTLET AND AN INLET COUPLED TO THE PROPORTIONING MEANS OUTLET AND OPERABLE FOR REMOVING FROM WATER CIRCULATED THERETHROUGH THE INSOLUBLE PARTICULATE BACTERIOCIDAL AGENT AND PARTICULATE MATTER DISPERSED AND SUSPENDED IN THE WATER, (4) DUCT MEANS COUPLED BETWEEN THE FIRST FILTER MEANS OUTLET AND THE PROPORTIONING MEANS FOR RECIRCULATING A SELECTED PORTION OF THE WATER CIRCULATED THROUGH THE FIRST FILTER MEANS FOR THE PROPORTIONING MEANS FOR ADDITION OF THE BACTERIOCIDAL AGENT THERETO, AND (5) SECOND FILTER MEANS COUPLED TO THE FIRST FILTER MEANS OUTLET FOR FURTHER BACTERIOCIDALLY TREATING AND FILTERING AND REMAINDER OF THE WATER CIRCULATE THROUGH THE FIRST FILTER MEANS TO RENDER THE SAME POTABLE.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |