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US3362888A
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Revivifying cartridge filters
Assignee: ALBERT E LICHENSTEIN
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Filing: 1964-10-01
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Granted: 1968-01-09
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 Anthony D Ricigliano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:02
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/18; B01D35/185; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/50; B01D29/52; B01D29/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
APPARATUS FOR REVIVIFYING CLEANING FLUID FILTERS BY TREATING THEM WITH VAPORIZED SOLVENT COMPRISING AN ENCLOSED TANK, A HINGED REMOVABLE COVER THEREON, A SPRING BIASED CLAMP TO HOLD SAID COVER IN CLOSED POSITION, HEATER MEANS WITHIN THE BOTTOM PORTION OF SAID TANK, MEANS FOR REMOVABLE SUPPORTING A PLURALITY OF FILTERS WITHIN SAID TANK IN SPACED RELATION ABOVE SAID HEATER MEANS, A SLUDGE CHAMBER IN SAID TANK BELOW SAID HEATER MEANS, DRAIN MEANS FOR REMOVING SLUDGE FROM SAID SLUDGE CHAMBER, AND CONSENSING COIL ADJACENT THE TOP OF SAID TANK BELOW SAID REMOVABLE COVER, SAID COIL BEING NESTED IN AN ANNULAR CHAMBER, A VALVE CONTROLLED DISCHARGE PIPE COMMUNICATING WITH SAID ANNULAR CHAMBER, SAID DISCHARGE PIPE EXTENDING TO A SEPARATOR HAVING A FIRST VALVE CONTROLLED DISCHARGE LINE RETURNING TO SAID TANK AND A SECOND VALVE CONTROLLED DISCHARGE LINE RUNNING TO AN EXTERNAL RESERVOIR, A DRAIN IN SAID SEPARATOR TO CARRY OFF SEPARATED WATER.
Claim 2
Dependent Claim
149 words
APPARATUS FOR REVIVIFYING CLEANING FLUID FILTERS BY TREATING THEM WITH VAPORIZED SOLVENT COMPRISING AN ENCLOSED TANK, A HINGED REMOVABLE COVER THEREON, A SPRING BIASED CLAMP TO HOLD SAID COVER IN CLOSED POSITION, HEATER MEANS WITHIN THE BOTTOM PORTION OF SAID TANK, MEANS FOR REMOVABLE SUPPORTING A PLURALITY OF FILTERS WITHIN SAID TANK IN SPACED RELATION ABOVE SAID HEATER MEANS, A SLUDGE CHAMBER IN SAID TANK BELOW SAID HEATER MEANS, DRAIN MEANS FOR REMOVING SLUDGE FROM SAID SLUDGE CHAMBER, AND CONSENSING COIL ADJACENT THE TOP OF SAID TANK BELOW SAID REMOVABLE COVER, SAID COIL BEING NESTED IN AN ANNULAR CHAMBER, A VALVE CONTROLLED DISCHARGE PIPE COMMUNICATING WITH SAID ANNULAR CHAMBER, SAID DISCHARGE PIPE EXTENDING TO A SEPARATOR HAVING A FIRST VALVE CONTROLLED DISCHARGE LINE RETURNING TO SAID TANK AND A SECOND VALVE CONTROLLED DISCHARGE LINE RUNNING TO AN EXTERNAL RESERVOIR, A DRAIN IN SAID SEPARATOR TO CARRY OFF SEPARATED WATER.
References Cited (Backward Citations)
US118668A
Cited
US360996A
Cited
US1043305A
Cited
US1938841A
Cited
US2385564A
Cited
US3111952A
Cited
US3232594A
Cited
US3154084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |