US3254943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat treating apparatus for liquids
Assignee: Alfa Laval Holdings Amsterdam AB
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Filing: 1962-11-28
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Granted: 1966-06-07
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Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 Palm Bengt Arne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:31
CPC Classifications
A; A61; A61L; A61L2/00; A23; A23B; A23B11/00; A23B11/10; A23B11/12; A23B11/13; A23B11/133; A23B11/137; A23B2/00; A23B2/40; A23B2/42; A23B2/46; A23B70/00; A23B70/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
APPARATUS FOR HEAT TREATING A LIQUID TO RENDER MICROORGANISMS THEREIN INNOCUOUS, WHICH COMPRISES A STEAM INJECTION DEVICE HAVING A LIQUID OUTLET, A FEED LINE LEADING TO SAID DEVICE FOR PASSING THE LIQUID THERETHROUGH TO HEAT THE LIQUID BY STEAM INJECTION, FIRST AND SECOND VACUUM VESSELS, MEANS FOR MAINTAINING SAID VESSELS UNDER VACUUM, A THREE-WAY VALVE CONNECTED BETWEEN SAID VESSELS AND SAID OUTLET OF THE STEAM INJECTION DEVICE, SAID VALVE BEING OPERABLE SELECTIVELY TO CONNECT SAID OUTLET TO EITHER ONE OF SAID VESSELS WHILE DISCONNECTING THE OUTLET FROM THE OTHER VESSEL, A LIQUID DISCHARGE PIPE LEADING FROM SAID FIRST VESSEL, AND A RETURN PIPE LEADING FROM SAID SECOND VESSEL TO SAID FEED LINE FOR RETURNING LIQUID TO THE STEAM INJECTION DEVICE.
Claim 2
Dependent Claim
120 words
APPARATUS FOR HEAT TREATING A LIQUID TO RENDER MICROORGANISMS THEREIN INNOCUOUS, WHICH COMPRISES A STEAM INJECTION DEVICE HAVING A LIQUID OUTLET, A FEED LINE LEADING TO SAID DEVICE FOR PASSING THE LIQUID THERETHROUGH TO HEAT THE LIQUID BY STEAM INJECTION, FIRST AND SECOND VACUUM VESSELS, MEANS FOR MAINTAINING SAID VESSELS UNDER VACUUM, A THREE-WAY VALVE CONNECTED BETWEEN SAID VESSELS AND SAID OUTLET OF THE STEAM INJECTION DEVICE, SAID VALVE BEING OPERABLE SELECTIVELY TO CONNECT SAID OUTLET TO EITHER ONE OF SAID VESSELS WHILE DISCONNECTING THE OUTLET FROM THE OTHER VESSEL, A LIQUID DISCHARGE PIPE LEADING FROM SAID FIRST VESSEL, AND A RETURN PIPE LEADING FROM SAID SECOND VESSEL TO SAID FEED LINE FOR RETURNING LIQUID TO THE STEAM INJECTION DEVICE.
References Cited (Backward Citations)
US2846320A
Cited
US3101041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |