Patent US3191394A successfully refreshed from Google Patents.
US3191394A
Expired / Lapsed
US
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Conservation arrangement and method
Assignee: Union Tank Car Co
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Filing: 1963-03-26
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Granted: 1965-06-29
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Expires: 1983-03-26
Abstract
No abstract record available.
Inventors
- 👤 Hazelton H Avery
- 👤 Rolland G Sturm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:27
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; C; C10; C10L; C10L1/00; C10L1/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A VOLATILE LIQUID STORAGE TANK INCLUDING A LIQUID CONTAINING PORTION AND A CHAMBER PORTION WHEREIN VAPORS COLLECT, A CONSERVATION ARRANGEMENT COMPRISING; VERTICALLY DISPOSED PASSAGE MEANS IN THE CHAMBER PORTION, SAID PASSAGE MEANS BEING OPEN TO THE CHAMBER PORTION AT AN UPPER END AND AT A LOWER END OF SAID PASSAGE MEANS, A SOURCE OF LIQUID MERCURY, AND MEANS FOR SPRAYING SAID LIQUID MERCURY DOWNWARDLY THROUGH SAID PASSAGE MEANS TO COOL WARM VAPORS IN SAID PASSAGE MEANS FROM SAID DRAFT IS CREATED THROUGH SAID PASSAGE MEANS FROM SAID UPPER END TO SAID LOWER END, SAID WARM VAPORS BEING COOLED AND COALESCED WHILE BEING DRAWN THROUGH SAID PASSAGE MEANS TO REDUCE THE PRESSURE IN SAID CHAMBER PORTION.
Claim 2
Dependent Claim
116 words
IN A VOLATILE LIQUID STORAGE TANK INCLUDING A LIQUID CONTAINING PORTION AND A CHAMBER PORTION WHEREIN VAPORS COLLECT, A CONSERVATION ARRANGEMENT COMPRISING; VERTICALLY DISPOSED PASSAGE MEANS IN THE CHAMBER PORTION, SAID PASSAGE MEANS BEING OPEN TO THE CHAMBER PORTION AT AN UPPER END AND AT A LOWER END OF SAID PASSAGE MEANS, A SOURCE OF LIQUID MERCURY, AND MEANS FOR SPRAYING SAID LIQUID MERCURY DOWNWARDLY THROUGH SAID PASSAGE MEANS TO COOL WARM VAPORS IN SAID PASSAGE MEANS FROM SAID DRAFT IS CREATED THROUGH SAID PASSAGE MEANS FROM SAID UPPER END TO SAID LOWER END, SAID WARM VAPORS BEING COOLED AND COALESCED WHILE BEING DRAWN THROUGH SAID PASSAGE MEANS TO REDUCE THE PRESSURE IN SAID CHAMBER PORTION.
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |