Patent US3273494A successfully refreshed from Google Patents.
US3273494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewage filter and press
Assignee: Individual
•
Filing: 1965-03-11
•
Granted: 1966-09-20
•
Expires: 1985-03-11
Abstract
No abstract record available.
Inventors
- 👤 Otell M Cocchiarella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:43
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN APPARATUS FOR SEPARATING LIQUID FROM SOLIDS BY FILTRATION COMPRISING, IN COMBINATION: (A) A FRAME; (B) AND ENDLESS BELT FILTER; (C) MEANS ON SAID FRAME FOR SUPPORTING SAID BELT AND GUIDING IT SUCCESSIVELY THROUGH A FILTERING ZONE, DELIQUEFIED CAKE ZONE AND A BELT RETURN ZONE; (D) MEANS FOR FEEDING LIQUID TO SAID FILTERING ZONE; (E) MEANS FOR PREVENTING THE FLOW OF LIQUID FROM SAID FILTERING ZONE TO SAID DELIQUEFIED CAKE ZONE; (F) SAID DELIQUEFIED CAKE ZONE COMPRISING A DEPRESSED COLLECTION PORTION TERMINATING IN A PORTION INCLINED UPWARDLY AT AN ANGLE SUFFICIENT TO CAUSE DELIQUEFIED CAKE TO COLLECT AND ROLL INTO A ROUGHLY CYLINDRICAL MASS IS SAID DEPRESSED COLLECTION PORTION TO CLEAN SAID BELT; AND (G) MEANS FOR DRIVING SAID BELT.
Claim 2
Independent Claim
120 words
AN APPARATUS FOR SEPARATING LIQUID FROM SOLIDS BY FILTRATION COMPRISING, IN COMBINATION: (A) A FRAME; (B) AND ENDLESS BELT FILTER; (C) MEANS ON SAID FRAME FOR SUPPORTING SAID BELT AND GUIDING IT SUCCESSIVELY THROUGH A FILTERING ZONE, DELIQUEFIED CAKE ZONE AND A BELT RETURN ZONE; (D) MEANS FOR FEEDING LIQUID TO SAID FILTERING ZONE; (E) MEANS FOR PREVENTING THE FLOW OF LIQUID FROM SAID FILTERING ZONE TO SAID DELIQUEFIED CAKE ZONE; (F) SAID DELIQUEFIED CAKE ZONE COMPRISING A DEPRESSED COLLECTION PORTION TERMINATING IN A PORTION INCLINED UPWARDLY AT AN ANGLE SUFFICIENT TO CAUSE DELIQUEFIED CAKE TO COLLECT AND ROLL INTO A ROUGHLY CYLINDRICAL MASS IS SAID DEPRESSED COLLECTION PORTION TO CLEAN SAID BELT; AND (G) MEANS FOR DRIVING SAID BELT.
References Cited (Backward Citations)
US445371A
Cited
US453815A
Cited
US594415A
Cited
US620786A
Cited
US1194266A
Cited
US82735A
Cited
FR336807A
Cited
FR11006E
Cited
US1201021A
Cited
US1405211A
Cited
US2069448A
Cited
US2044386A
Cited
US2619232A
Cited
US2652927A
Cited
US2876697A
Cited
US2798609A
Cited
US2798424A
Cited
US2844253A
Cited
US2880875A
Cited
US3117927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |