Patent US3258422A successfully refreshed from Google Patents.
US3258422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for eliminating algae growth in cooling towers
Assignee: Individual
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Filing: 1964-08-19
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Granted: 1966-06-28
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Expires: 1984-08-19
Abstract
No abstract record available.
Inventors
- 👤 Gerald P Ferry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:22
CPC Classifications
F; F28; F28C; F28C1/00; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A PROCESS OF COOLING, WHEREIN WATER IS USED AS A HEAT EXCHANGE MEDIUM, INCLUDING THE STEPS OF: (A) CIRCULATING WATER IN A HEAT EXCHANGE ZONE WHEREIN WATER ABSORBS HEAT THROUGH INDIRECT HEAT EXCHANGE, (B) CONTACTING THE HEATED WATER WITH A CURRENT OF AIR WHEREIN THE WATER IS COOLED THROUGH PARTIAL VAPORIZATION, AND (C) COLLECTING THE WATER IN A COLLECTION ZOONE FOR RECIRCULATION TO A HEAT EXCHANGE ZONE, THE IMPROVEMENT OF PREVENTING ALGAE GROWTH AND SLIME FORMATION IN SAID WATER WHICH COMPRISES THE STEPS OF: (1) RECIRCULATING WATER FROM SAID COLLECTION ZONE TO SAID HEAT EXCHANGE ZONE,
Claim 2
Dependent Claim
97 words
IN A PROCESS OF COOLING, WHEREIN WATER IS USED AS A HEAT EXCHANGE MEDIUM, INCLUDING THE STEPS OF: (A) CIRCULATING WATER IN A HEAT EXCHANGE ZONE WHEREIN WATER ABSORBS HEAT THROUGH INDIRECT HEAT EXCHANGE, (B) CONTACTING THE HEATED WATER WITH A CURRENT OF AIR WHEREIN THE WATER IS COOLED THROUGH PARTIAL VAPORIZATION, AND (C) COLLECTING THE WATER IN A COLLECTION ZOONE FOR RECIRCULATION TO A HEAT EXCHANGE ZONE, THE IMPROVEMENT OF PREVENTING ALGAE GROWTH AND SLIME FORMATION IN SAID WATER WHICH COMPRISES THE STEPS OF: (1) RECIRCULATING WATER FROM SAID COLLECTION ZONE TO SAID HEAT EXCHANGE ZONE,
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |