Patent US3931019A successfully refreshed from Google Patents.
US3931019A
Expired / Lapsed
US
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Reinforced coalescing cell
Assignee: Process and Pollution Control Co
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Filing: 1975-02-18
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Granted: 1976-01-06
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Expires: 1995-02-18
Abstract
Abstract A cell for coalescing oil droplets dispersed in a water emulsion including a perforated core into which the emulsion is injected, a layer of emulsion breaking fibrous material wound about the core through which the emulsion passes, and a helical wire wrapping on the outside of said fibrous material. The wire wrapping is of selected tension and spacing.
Inventors
- 👤 Leslie L. Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:15
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/045; Y; Y10; Y10S; Y10S210/00; Y10S210/05
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
A coalescing cell for use in coalescing oil dispersed in a water emulsion, comprising: an elongated perforated tube core into which emulsion is injected; at least one layer of emulsion breaking fibrous material wound around said core through which emulsion is forced to pass; and a length of wire wound helically on the exterior cylindrical surface of said fibrous material, the wire being wound thereon with a tension of about 10 to 25 pounds, the spacing between the wire being between 1/4 inch and 1 inch, the wire forming a helical indentation in the cylindrical surface of the fibrous material.
Claim 2
Dependent Claim
100 words
A coalescing cell for use in coalescing oil dispersed in a water emulsion, comprising: an elongated perforated tube core into which emulsion is injected; at least one layer of emulsion breaking fibrous material wound around said core through which emulsion is forced to pass; and a length of wire wound helically on the exterior cylindrical surface of said fibrous material, the wire being wound thereon with a tension of about 10 to 25 pounds, the spacing between the wire being between 1/4 inch and 1 inch, the wire forming a helical indentation in the cylindrical surface of the fibrous material.
Claim 3
Dependent Claim
22 words
A coalescing cell according to claim 1 wherein said wire is of stainless steel and of a diameter of about 0.032 inch.
Claim 4
Dependent Claim
25 words
A coalescing cell according to claim 1 in which said wire is wound on said cell at a tension of between 15 and 18 pounds.
References Cited (Backward Citations)
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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) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |