US2952571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning oily hard surfaces
Assignee: Standard Oil Co
•
Filing: 1957-02-18
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Granted: 1960-09-13
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Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Freedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:19
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/093
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A METHOD OF CLEANING A TANKER COMPARTMENT TO REMOVE HYDROCARBON OIL ADHERING TO THE WALLS OF SAID COMPARTMENT, WHICH METHOD COMPRISES WASHING THE SURFACES IN SAID COMPARTMENT WITH AN AQUEOUS SOLUTION DIRECTED AGAINST SAID SURFACES AT A DISCHARGE PRESSURE OF BETWEEN ABOUT 100 AND 300 P.S.I.G. AND AT A DISCHARGE TEMPERATURE BETWEEN ABOUT 140*F. AND 200*F., FOR A TIME SUFFICIENT TO REMOVE ESSENTIALLY ALL OF SAID ADHERING OIL, SAID AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF WATER AND BETWEEN ABOUT 0.05 AND 0.25 PERCENT OF A NON-IONIC DETERGENT SELECTED FROM THE CLASS CONSISTING (I) THE CONDENSATION REACTION PRODUCT OF TALL OIL AND 15 MOLES OF ETHYLENE OXIDE PER MOLE OF SAID OIL, (II) THE CONDENSATION PRODUCT OF DIISOBUTYLPHENOL, AND 9-10 MOLES OF ETHYLENE OXIDE PER MOLE OF SAID PHENOL, AND (III) OXTYLPHENOL WITH 7-8 MOLES OF ETHYLENE OXIDE PER MOLE OF SAID PHENOL AND REMOVING ADHERING AQUEOUS SOLUTION FROM SAID SURFACE BY RINSING WITH WATER, FREE OF DETERGENT.
Claim 2
Independent Claim
156 words
A METHOD OF CLEANING A TANKER COMPARTMENT TO REMOVE HYDROCARBON OIL ADHERING TO THE WALLS OF SAID COMPARTMENT, WHICH METHOD COMPRISES WASHING THE SURFACES IN SAID COMPARTMENT WITH AN AQUEOUS SOLUTION DIRECTED AGAINST SAID SURFACES AT A DISCHARGE PRESSURE OF BETWEEN ABOUT 100 AND 300 P.S.I.G. AND AT A DISCHARGE TEMPERATURE BETWEEN ABOUT 140*F. AND 200*F., FOR A TIME SUFFICIENT TO REMOVE ESSENTIALLY ALL OF SAID ADHERING OIL, SAID AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF WATER AND BETWEEN ABOUT 0.05 AND 0.25 PERCENT OF A NON-IONIC DETERGENT SELECTED FROM THE CLASS CONSISTING (I) THE CONDENSATION REACTION PRODUCT OF TALL OIL AND 15 MOLES OF ETHYLENE OXIDE PER MOLE OF SAID OIL, (II) THE CONDENSATION PRODUCT OF DIISOBUTYLPHENOL, AND 9-10 MOLES OF ETHYLENE OXIDE PER MOLE OF SAID PHENOL, AND (III) OXTYLPHENOL WITH 7-8 MOLES OF ETHYLENE OXIDE PER MOLE OF SAID PHENOL AND REMOVING ADHERING AQUEOUS SOLUTION FROM SAID SURFACE BY RINSING WITH WATER, FREE OF DETERGENT.
References Cited (Backward Citations)
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Cited
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Cited
US2629743A
Cited
US2550997A
Cited
US2678935A
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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) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |