Patent US3186551A successfully refreshed from Google Patents.
US3186551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet fuel filtering, emulsion breaking and drying device
Assignee: Faudi Feinbau GmbH
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Filing: 1960-04-11
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Granted: 1965-06-01
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Expires: 1980-04-11
Abstract
No abstract record available.
Inventors
- 👤 Dornauf Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:26
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/045; B01D17/06; B01D2201/00; B01D2201/50; Y; Y10; Y10S; Y10S210/00; Y10S210/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A FILTER AND WATER SEPARATOR COMPRISING A VESSEL HAVING AN INLET AND AN OUTLET FOR PASSING LIQUID TO BE TREATED THERETHROUGH, A METAL PARTITION MEMBER IN SAID VESSEL DISPOSED BETWEEN SAID INLET AND OUTLET, A PLURALITY OF CARTRIDGES SECURED TO SAID MEMBER AND DISPOSED TO RECEIVE LIQUID FROM SAID INLET AND TO DISCHARGE IT TO SAID OUTLET, SAID CARTRIDGES COMPRISING A CYLINDRICAL PERFORATED CENTER TUBE, AN ANNULAR FILTER LAYER MADE OF PLASTIC RESIN BONDED MINERAL FIBERS SURROUNDING SAID TUBE AND IN CONTACT THEREWITH HAVING A THICKNESS OF APPROXIMATELY 10 MM. AND A PORE SIZE OF APPROXIMATELY 50 TO 150 TIMES GREATER IN SIZE THAN THE MAXIMUM PARTICLE SIZE ALLOWED TO PASS THROUGH THE FILTER LAYER WITH FILTERING ACTION BEING PROVIDED BY THE FILTERING EFFECT OF SAID PORE SIZE ACTING SERIALLY OVER THE DISTANCE OF SAID THICKNESS, A PRESTRESSED WIRE HELIX EXTENDING LONGITUDINALLY THE FULL LENGTH OF SAID FILTER LAYER AND WRAPPED COMPLETELY AROUND THE OUTER DIAMETER OF SAID
Claim 2
Dependent Claim
158 words
A FILTER AND WATER SEPARATOR COMPRISING A VESSEL HAVING AN INLET AND AN OUTLET FOR PASSING LIQUID TO BE TREATED THERETHROUGH, A METAL PARTITION MEMBER IN SAID VESSEL DISPOSED BETWEEN SAID INLET AND OUTLET, A PLURALITY OF CARTRIDGES SECURED TO SAID MEMBER AND DISPOSED TO RECEIVE LIQUID FROM SAID INLET AND TO DISCHARGE IT TO SAID OUTLET, SAID CARTRIDGES COMPRISING A CYLINDRICAL PERFORATED CENTER TUBE, AN ANNULAR FILTER LAYER MADE OF PLASTIC RESIN BONDED MINERAL FIBERS SURROUNDING SAID TUBE AND IN CONTACT THEREWITH HAVING A THICKNESS OF APPROXIMATELY 10 MM. AND A PORE SIZE OF APPROXIMATELY 50 TO 150 TIMES GREATER IN SIZE THAN THE MAXIMUM PARTICLE SIZE ALLOWED TO PASS THROUGH THE FILTER LAYER WITH FILTERING ACTION BEING PROVIDED BY THE FILTERING EFFECT OF SAID PORE SIZE ACTING SERIALLY OVER THE DISTANCE OF SAID THICKNESS, A PRESTRESSED WIRE HELIX EXTENDING LONGITUDINALLY THE FULL LENGTH OF SAID FILTER LAYER AND WRAPPED COMPLETELY AROUND THE OUTER DIAMETER OF SAID
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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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |