US3107218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating column contact device
Assignee: Individual
•
Filing: 1960-05-09
•
Granted: 1963-10-15
•
Expires: 1980-05-09
Abstract
No abstract record available.
Inventors
- 👤 Collin M Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:33
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/06; B01; B01D; B01D11/00; B01D11/04; B01D11/0476; B01D11/048; B01D3/00; B01D3/14; B01D3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A ROTATING COLUMN CONTACT DEVICE FOR EFFECTING INTIMATE CONTACT BETWEEN RELATIVELY IMMISCIBLE LIQUIDS OF DIFFERENT DENSITIES COMPRISING; A ROTOR, MEANS FOR SUPPLYING HEAVIER LIQUID TO AND MEANS FOR REMOVING LIGHTER LIQUID FROM THE INTERIOR OF SAID ROTOR ADJACENT THE AXIS THEREOF, MEANS FOR FORCING LIGHTER LIQUID INTO AND MEANS FOR DISCHARGING HEAVIER LIQUID FROM THE INTERIOR OF SAID ROTOR ADJACENT THE PERIPHERY THEREOF, A PLURALITY OF SPACED CONCENTRIC SEPARATOR BANDS POSITIONED IN SAID ROTOR, EACH OF SAID BANDS BEING FORMED WITH A PLURALITY OF OPENINGS THERETHROUGH, THE SPACING BETWEEN ADJACENT BANDS INCREASING AS THEIR RADII INCREASE.
Claim 2
Dependent Claim
96 words
A ROTATING COLUMN CONTACT DEVICE FOR EFFECTING INTIMATE CONTACT BETWEEN RELATIVELY IMMISCIBLE LIQUIDS OF DIFFERENT DENSITIES COMPRISING; A ROTOR, MEANS FOR SUPPLYING HEAVIER LIQUID TO AND MEANS FOR REMOVING LIGHTER LIQUID FROM THE INTERIOR OF SAID ROTOR ADJACENT THE AXIS THEREOF, MEANS FOR FORCING LIGHTER LIQUID INTO AND MEANS FOR DISCHARGING HEAVIER LIQUID FROM THE INTERIOR OF SAID ROTOR ADJACENT THE PERIPHERY THEREOF, A PLURALITY OF SPACED CONCENTRIC SEPARATOR BANDS POSITIONED IN SAID ROTOR, EACH OF SAID BANDS BEING FORMED WITH A PLURALITY OF OPENINGS THERETHROUGH, THE SPACING BETWEEN ADJACENT BANDS INCREASING AS THEIR RADII INCREASE.
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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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |