US3865732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion breaker
Assignee: Fram Corp
•
Filing: 1972-11-27
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Granted: 1975-02-11
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Expires: 1992-11-27
Abstract
Abstract An emulsion breaker featuring a two stage unit, the first stage comprising a resin impregnated fibrous medium including waterresistant, preferentially hydrocarbon-wettable synthetic fibers and having passages therethrough sufficiently fine to trap particles greater than 25 microns in diameter but at least coarse enough to permit passage of particles 1 micron in diameter, and a second stage directly downstream of the first comprising a batt including water-resistant, preferentially hydrocarbon-wettable synthetic fibers for removing from hydrocarbon droplets passing out of the first stage water bubbles surrounding those droplets.
Inventors
- 👤 Ralph D Terhune
- 👤 James C Duke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:17
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/18; G01N33/1826; G01N33/1833; Y; Y10; Y10S; Y10S210/00; Y10S210/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
AN EMULSION BREAKER FOR REMOVING TRACE AMOUNTS OF HYDROCARBON FROM WATER, COMPRISING A HOUSING HAVING AN INLET AND AN OUTLET, A FIRST, RADIALLY INNER ANNULAR ELEMENT IN SAID HOUSING, HAVING AN INLET SIDE COMMUNICATING WITH SAID INLET, AND AN OUTLET SIDE, A SECOND, RADIALLY OUTER ANNULAR ELEMENT IN SAID HOUSING, HAVING AN INLET SIDE COMMUNICATING WITH SAID OUTLET SIDE OF SAID FIRST ELEMENT, AND AN OUTLET SIDE DIRECTLY COMMUNICATING WITH SAID OUTLET OF SAID HOUSING, EACH OF SAID ELEMENTS HAVING WATER RESISTANT, PREFERENTIALLY HYDROCARBON WETTABLE POLYESTER FIBERS, SAID FIRST ELEMENT HAVING NATUARL FIBERS RESIN IMPREGNATED FOR WATER RESISTANCE AND MIXED WITH SAID POLYESTER FIBERS IN A RATIO SUCH AS TO PROVIDE A TIGHT, SHEETLIKE PLEATED MEDIUM OF LOWER MICRON RATING THAN THAT OF SAID SECOND ELEMENT SAID MICRON RATING OF SAID FIRST ELEMENT BEING BETWEEN 1 AND 25, FOR COALESCING HYDROCARBON IN SAID WATER INTO DROPLETS, SAID SECOND ELEMENT HAVING THE FORM OF A FIBROUS BATT FOR REMOVING FROM SAID HYDROCARBON DROPLETS ANY WATER BUBBLES SURROUNDING THEM.
Claim 2
Dependent Claim
167 words
AN EMULSION BREAKER FOR REMOVING TRACE AMOUNTS OF HYDROCARBON FROM WATER, COMPRISING A HOUSING HAVING AN INLET AND AN OUTLET, A FIRST, RADIALLY INNER ANNULAR ELEMENT IN SAID HOUSING, HAVING AN INLET SIDE COMMUNICATING WITH SAID INLET, AND AN OUTLET SIDE, A SECOND, RADIALLY OUTER ANNULAR ELEMENT IN SAID HOUSING, HAVING AN INLET SIDE COMMUNICATING WITH SAID OUTLET SIDE OF SAID FIRST ELEMENT, AND AN OUTLET SIDE DIRECTLY COMMUNICATING WITH SAID OUTLET OF SAID HOUSING, EACH OF SAID ELEMENTS HAVING WATER RESISTANT, PREFERENTIALLY HYDROCARBON WETTABLE POLYESTER FIBERS, SAID FIRST ELEMENT HAVING NATUARL FIBERS RESIN IMPREGNATED FOR WATER RESISTANCE AND MIXED WITH SAID POLYESTER FIBERS IN A RATIO SUCH AS TO PROVIDE A TIGHT, SHEETLIKE PLEATED MEDIUM OF LOWER MICRON RATING THAN THAT OF SAID SECOND ELEMENT SAID MICRON RATING OF SAID FIRST ELEMENT BEING BETWEEN 1 AND 25, FOR COALESCING HYDROCARBON IN SAID WATER INTO DROPLETS, SAID SECOND ELEMENT HAVING THE FORM OF A FIBROUS BATT FOR REMOVING FROM SAID HYDROCARBON DROPLETS ANY WATER BUBBLES SURROUNDING THEM.
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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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |