US3338065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water purifying apparatus and method
Assignee: Carrier Corp
•
Filing: 1965-01-04
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Granted: 1967-08-29
•
Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 Carlyle M Ashley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:49
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
159 words
A METHOD FOR CONVERTING IMPURE WATER INTO PURIFIED WATER COMPRISING THE STEPS OF FEEDING IMPURE WATER TO A PREDETERMINED LEVEL IN A TANK, FREEZING A PORTION OF SAID IMPURE WATER INTO ICE ON A FREEZING SURFACE AT A LOWER PORTION OF SAID TANK, RELEASING SAID ICE FROM SAID FREEZING SURFACE AND PERMITTING IT TO RISE TOWARD THE TOP OF SAID TANK WITHOUT AGITATING THE IMPURE WATER IN SAID TANK, CAUSING THE ICE AT THE TOP OF THE TANK TO MELT TO PRODUCE PURIFIED WATER AT THE TOP OF SAID TANK WHILE PERMITTING HEAVIER IMPURE WATER TO REMAIN IN THE LOWER PORTION OF SAID TANK AS A RESULT OF NOT PREDUCING AGITATION BETWEEN SAID ICE AND SAID IMPURE WATER, SAID PURIFIED WATER AT THE TOP OF SAID TANK ACTING TO WASH SAID ICE RISING TO THE TOP OF SAID TANK, AND SELECTIVELY REMOVING PURIFIED WATER FROM THE TOP OF SAID TANK AND IMPURE WATER FROM THE BOTTOM OF SAID TANK.
References Cited (Backward Citations)
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US2942432A
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US2713249A
Cited
US3163020A
Cited
US3070969A
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US3159474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |