Patent US2658855A successfully refreshed from Google Patents.
US2658855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deoiling wax
Assignee: ExxonMobil Oil Corp
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Filing: 1951-06-27
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Granted: 1953-11-10
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Expires: 1971-06-27
Abstract
No abstract record available.
Inventors
- 👤 Grady L Payne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:01
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
253 words
A CONTINUOUS METHOD FOR DEOILING AN OILY HYDROCARBON WAX, WHICH COMPRISING CONTINUOUSLY AND INTIMATELY-CURRENTLY MOVING ADSORBENT BELT WITH A COUNTER-CURRENTLY MOVING ADSORBENT BELT AT A TEMPERATURE BELOW THE MELTING POINT OF SAID WAX, CONTINUOUSLY PRESSING THE WAX CONTAINED ON SAID ADSORBENT BELT BY PASSING SAID BELT TOGETHER WITH SAID WAX AROUND AND OVER A REVOLVING ROLLER SURFACE WHEREBY WAX, IN THE FORM OF A THIN CAKE, COLLECTS INTHE CLEARANCE SPACE BETWEEN SAID BELT AND SAID ROLLER SURFACE WHILE OILY COMPONENTS ARE SIMULTANEOUSLY SORBED FROM SAID WAX INTO THE PORES OF SAID MOVING ADSORBENT BELT, CONTINUOUSLY RELEASING THE RESULTING WAX CAKE FROM SAID PRESSING, CONTINUOUSLY SCRAPING ADHERING WAX FROM SAID BELT AND SAID ROLLER SURFACE, CONTINUOUSLY TRANSFERRING THE WAX SO SCRAPED TO FURTHER CONTACT WITH SAID COUNTER-CURRENTLY MOVING ADSORBENT BELT, CONTINUOUSLY PASSING SAID BELT TOGETHER WITH SAID WAX AROUND AND OVER A SECOND ROLLER SURFACE REVOLVING IN A DIRECTION OPPOSITE TO THAT OF THE AFOREMENTIONED ROLLER SURFACE WHEREBY WAX IS AGAIN SUBJECTED TO PRESSING IN THE SPACE BETWEEN SAID BELT AND SAID SECOND ROLLER SURFACE, CONTINUOUSLY RELEASING THE RESULTING WAX CAKE FROM SAID PRESSING, CONTINUOUSLY SCRAPING ADHERING WAX FROM SAID BELT AND SAID SECOND ROLLER SURFACE, REPEATING THE CYCLE OF ABOVE STEPS UNTIL A WAX PRODUCT OF PREDETERMINED OIL CONTENT IS OBTAINED, CONTINUOUSLY WASHING SAID MOVING BELT EMERGING FROM CONTACT WITH SAID ROLLER SURFACES WITH AN OIL SOLVENT, CONTINUOUSLY PASSING THE MOVING BELT THROUGH A DRYING ZONE AND THEREAFTER RECYCLING THE RESULTING DRY REVIVIFIED ADSORBENT BELT TO FURTHER CONTACT WITH SAID OILY WAX CHARGE.
Claim 2
Dependent Claim
253 words
A CONTINUOUS METHOD FOR DEOILING AN OILY HYDROCARBON WAX, WHICH COMPRISING CONTINUOUSLY AND INTIMATELY-CURRENTLY MOVING ADSORBENT BELT WITH A COUNTER-CURRENTLY MOVING ADSORBENT BELT AT A TEMPERATURE BELOW THE MELTING POINT OF SAID WAX, CONTINUOUSLY PRESSING THE WAX CONTAINED ON SAID ADSORBENT BELT BY PASSING SAID BELT TOGETHER WITH SAID WAX AROUND AND OVER A REVOLVING ROLLER SURFACE WHEREBY WAX, IN THE FORM OF A THIN CAKE, COLLECTS INTHE CLEARANCE SPACE BETWEEN SAID BELT AND SAID ROLLER SURFACE WHILE OILY COMPONENTS ARE SIMULTANEOUSLY SORBED FROM SAID WAX INTO THE PORES OF SAID MOVING ADSORBENT BELT, CONTINUOUSLY RELEASING THE RESULTING WAX CAKE FROM SAID PRESSING, CONTINUOUSLY SCRAPING ADHERING WAX FROM SAID BELT AND SAID ROLLER SURFACE, CONTINUOUSLY TRANSFERRING THE WAX SO SCRAPED TO FURTHER CONTACT WITH SAID COUNTER-CURRENTLY MOVING ADSORBENT BELT, CONTINUOUSLY PASSING SAID BELT TOGETHER WITH SAID WAX AROUND AND OVER A SECOND ROLLER SURFACE REVOLVING IN A DIRECTION OPPOSITE TO THAT OF THE AFOREMENTIONED ROLLER SURFACE WHEREBY WAX IS AGAIN SUBJECTED TO PRESSING IN THE SPACE BETWEEN SAID BELT AND SAID SECOND ROLLER SURFACE, CONTINUOUSLY RELEASING THE RESULTING WAX CAKE FROM SAID PRESSING, CONTINUOUSLY SCRAPING ADHERING WAX FROM SAID BELT AND SAID SECOND ROLLER SURFACE, REPEATING THE CYCLE OF ABOVE STEPS UNTIL A WAX PRODUCT OF PREDETERMINED OIL CONTENT IS OBTAINED, CONTINUOUSLY WASHING SAID MOVING BELT EMERGING FROM CONTACT WITH SAID ROLLER SURFACES WITH AN OIL SOLVENT, CONTINUOUSLY PASSING THE MOVING BELT THROUGH A DRYING ZONE AND THEREAFTER RECYCLING THE RESULTING DRY REVIVIFIED ADSORBENT BELT TO FURTHER CONTACT WITH SAID OILY WAX CHARGE.
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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) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |