Patent US3332871A successfully refreshed from Google Patents.
US3332871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water treatment
Assignee: Individual
•
Filing: 1966-06-27
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Granted: 1967-07-25
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Expires: 1986-06-27
Abstract
No abstract record available.
Inventors
- 👤 Myron L Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:12
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/688; B; B01; B01F; B01F21/00; B01F21/20; B01F21/22; Y; Y10; Y10S; Y10S261/00; Y10S261/46; Y10T; Y10T137/00; Y10T137/4891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A METHOD OF INTRODUCING WATER TREATING CHEMICALS INTO THE WATER OF A RECIRCULATING WATER SYSTEM HAVING A MAKEUP WATER INLET, THE STEPS COMPRISING: PROVIDING AN OPEN-TOP CONTAINER CONTAINING A SOLID, WATER-DISPERSIBLE TREATING AGENT AND LOCATING SAID CONTAINER BENEATH THE MAKE-UP WATER INLET; SAID CONTAINER HAVING A WATER-PERMEABLE DIFFUSION BARRIER RESTING ON AND COVERING THE SURFACE OF SAID SOLID TREATING AGENT THAT SLOWS THE DISSOLUTION OF THE TREATING AGENT WITH THE ADMISSION OF WATER INTO THE CONTAINER AND MOVES DOWNWARDLY REMAINING RESTING ON SAID SOLID TREATING AGENT AS SAID AGENT IS CONSUMED; AND INTERMITTENTLY INTRODUCING WATER INTO THE CONTAINER FROM THE MAKE-UP WATER INLET AND WITHDRAWING SOLUTION FROM SAID CONTAINER INTO THE WATER OF THE SYSTEM.
Claim 2
Independent Claim
115 words
A METHOD OF INTRODUCING WATER TREATING CHEMICALS INTO THE WATER OF A RECIRCULATING WATER SYSTEM HAVING A MAKEUP WATER INLET, THE STEPS COMPRISING: PROVIDING AN OPEN-TOP CONTAINER CONTAINING A SOLID, WATER-DISPERSIBLE TREATING AGENT AND LOCATING SAID CONTAINER BENEATH THE MAKE-UP WATER INLET; SAID CONTAINER HAVING A WATER-PERMEABLE DIFFUSION BARRIER RESTING ON AND COVERING THE SURFACE OF SAID SOLID TREATING AGENT THAT SLOWS THE DISSOLUTION OF THE TREATING AGENT WITH THE ADMISSION OF WATER INTO THE CONTAINER AND MOVES DOWNWARDLY REMAINING RESTING ON SAID SOLID TREATING AGENT AS SAID AGENT IS CONSUMED; AND INTERMITTENTLY INTRODUCING WATER INTO THE CONTAINER FROM THE MAKE-UP WATER INLET AND WITHDRAWING SOLUTION FROM SAID CONTAINER INTO THE WATER OF THE SYSTEM.
References Cited (Backward Citations)
US991825A
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US2097092A
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US2346632A
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US2565246A
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US2859766A
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US2802724A
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US3036305A
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |