Patent US3074556A successfully refreshed from Google Patents.
US3074556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid filtering mechanism
Assignee: Rosaen Filter Co
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Filing: 1960-04-25
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Granted: 1963-01-22
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Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Oscar E Rosaen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:43
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
230 words
A FLUID FILTERING SYSTEM COMPRISING A FILTER MEANS AND A RESERVOIR, MEANS CONDUCTING FLUID THROUGH SAID FILTER MEANS IN ONE DIRECTION DISCHARGING INTO SAID RESERVOIR, A SECOND MEANS INDEPENDENTLY SELECTIVELY OPERABLE TO SIMULTANEOUSLY CONDUCT FLUID THROUGH A PORTION ONLY OF SAID FILTER MEANS IN THE OPPOSITE DIRECTION DISCHARGING INTO SAID RESERVOIR AND CARRYING FOREIGN MATTER DISLODGED FROM SAID FILTER MEANS, SAID RESERVOIR HAVING MEANS SEPARATING THE FOREIGN MATTER FROM THE SECOND DISCHARGED FLUID, MEANS SEPARATING THE FIRST DISCHARGE FLUID FROM THE SECOND DISCHARGED FLUID, SAID RESEVOIR COMPRISING A TANK HAVING A PARTITION DIVIDING SAID TANK INTO TWO COMPARTMENTS, THE FIRST OF SAID FLUID CONDUCTING MEANS DISCHARGING FILTERED FLUID INTO ONE OF SAID COMPARTMENTS AND THE SECOND FLUID CONDUCTING MEANS DISCHARGING THE FLUID HAVING FOREIGN MATTER INTO THE OTHER OF SAID COMPARTMENTS, SAID COMPARTMENTS BEING OPENLY CONNECTED OVER THE TOP OF SAID PARTITION, AND MEANS CONDUCTING FLUID FROM ONLY THE FIRST COMPARTMENT, INTO WHICH IS DISCHARGED THE FILTERED FLUID, TO THE SECOND MEANS CONDUCTING FLUID THROUGH A PORTION ONLY OF SAID FILTER MEANS, SAID SECOND COMPARTMENT HAVING A HORIZONTAL SHELF DIVIDING THE COMPARTMENT INTO UPPER AND LOWER PORTIONS AND SPACED AT ONE END ONLY FROM THE END OF SAID RESERVIOR TO OPENLY CONNECT THE UPPER AND LOWER PORTIONS, SAID FLUID CONTAINING FOREIGN MATTER BEING DISCHARGED ONLY INTO SAID LOWER PORTION AT A LOCATION REMOTE FROM THE OPEN END OF SAID SHELF.
Claim 2
Dependent Claim
230 words
A FLUID FILTERING SYSTEM COMPRISING A FILTER MEANS AND A RESERVOIR, MEANS CONDUCTING FLUID THROUGH SAID FILTER MEANS IN ONE DIRECTION DISCHARGING INTO SAID RESERVOIR, A SECOND MEANS INDEPENDENTLY SELECTIVELY OPERABLE TO SIMULTANEOUSLY CONDUCT FLUID THROUGH A PORTION ONLY OF SAID FILTER MEANS IN THE OPPOSITE DIRECTION DISCHARGING INTO SAID RESERVOIR AND CARRYING FOREIGN MATTER DISLODGED FROM SAID FILTER MEANS, SAID RESERVOIR HAVING MEANS SEPARATING THE FOREIGN MATTER FROM THE SECOND DISCHARGED FLUID, MEANS SEPARATING THE FIRST DISCHARGE FLUID FROM THE SECOND DISCHARGED FLUID, SAID RESEVOIR COMPRISING A TANK HAVING A PARTITION DIVIDING SAID TANK INTO TWO COMPARTMENTS, THE FIRST OF SAID FLUID CONDUCTING MEANS DISCHARGING FILTERED FLUID INTO ONE OF SAID COMPARTMENTS AND THE SECOND FLUID CONDUCTING MEANS DISCHARGING THE FLUID HAVING FOREIGN MATTER INTO THE OTHER OF SAID COMPARTMENTS, SAID COMPARTMENTS BEING OPENLY CONNECTED OVER THE TOP OF SAID PARTITION, AND MEANS CONDUCTING FLUID FROM ONLY THE FIRST COMPARTMENT, INTO WHICH IS DISCHARGED THE FILTERED FLUID, TO THE SECOND MEANS CONDUCTING FLUID THROUGH A PORTION ONLY OF SAID FILTER MEANS, SAID SECOND COMPARTMENT HAVING A HORIZONTAL SHELF DIVIDING THE COMPARTMENT INTO UPPER AND LOWER PORTIONS AND SPACED AT ONE END ONLY FROM THE END OF SAID RESERVIOR TO OPENLY CONNECT THE UPPER AND LOWER PORTIONS, SAID FLUID CONTAINING FOREIGN MATTER BEING DISCHARGED ONLY INTO SAID LOWER PORTION AT A LOCATION REMOTE FROM THE OPEN END OF SAID SHELF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |