US2748885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid deaerator
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1953-09-17
•
Granted: 1956-06-05
•
Expires: 1973-09-17
Abstract
No abstract record available.
Inventors
- 👤 Carl L Day
- 👤 Ransom C Albrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:15
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0063; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109; Y10T137/7287; Y10T137/7297
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN AN APPARATUS OF THE TYPE DESCRIBED FOR DEAERATING A RAW LIQUID, AN ENCLOSED TANK HAVING AN INLET FOR DELIVERY OF RAW LIQUID THERETO AND AN OUTLET FOR DISCHARGE OF DEAERATED LIQUID THEREFROM, MEANS CONNECTED TO SAID TANK FOR CREATING A VACUUM THEREIN AT A PREDETERMINED VALUE, VALVE MEANS OPERATIVELY ASSOCIATED WITH SAID INLET TO CONTROL FLOW OF RAW LIQUID INTO SAID TANK, SAID VALVE MEANS BEING OPERABLE BY VACCUM ESTABLISHED IN SAID TANK ONLY WHEN THE VACUUM IS AT THE PREDETERMINED VALUE, AND MEANS OPERATIVELY ASSOCIATED WITH SAID VALVE MEANS AND SAID TANK AND RESPONSIVE TO THE LEVEL OF LIQUID IN SAID TANK TO PERMIT VACUUM ESTABLISHED IN SAID TANK TO OPERATE SAID VALVE MEANS.
Claim 2
Dependent Claim
116 words
IN AN APPARATUS OF THE TYPE DESCRIBED FOR DEAERATING A RAW LIQUID, AN ENCLOSED TANK HAVING AN INLET FOR DELIVERY OF RAW LIQUID THERETO AND AN OUTLET FOR DISCHARGE OF DEAERATED LIQUID THEREFROM, MEANS CONNECTED TO SAID TANK FOR CREATING A VACUUM THEREIN AT A PREDETERMINED VALUE, VALVE MEANS OPERATIVELY ASSOCIATED WITH SAID INLET TO CONTROL FLOW OF RAW LIQUID INTO SAID TANK, SAID VALVE MEANS BEING OPERABLE BY VACCUM ESTABLISHED IN SAID TANK ONLY WHEN THE VACUUM IS AT THE PREDETERMINED VALUE, AND MEANS OPERATIVELY ASSOCIATED WITH SAID VALVE MEANS AND SAID TANK AND RESPONSIVE TO THE LEVEL OF LIQUID IN SAID TANK TO PERMIT VACUUM ESTABLISHED IN SAID TANK TO OPERATE SAID VALVE MEANS.
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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) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |