Patent US2747736A successfully refreshed from Google Patents.
US2747736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease and oil interceptor and method of separating fluids of different specific gravities
Assignee: Individual
•
Filing: 1952-09-16
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Granted: 1956-05-29
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Expires: 1972-09-16
Abstract
No abstract record available.
Inventors
- 👤 William R Mobley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:07
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0214; B01D21/00; B01D21/0012; B01D21/10; B01D21/24; B01D21/2433
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
AN APPARATUS FOR THE RECOVERY OF GREASES AND OILS FROM WASTE WATER COMPRISING A CONTINUOUS FLOW GREASE SEPARATING TRAP BODY HAVING A SEPARATING CHAMBER AND AN OUTLET LOCATED ABOVE THE INLET AND AN AIR SEALED TOP CLOSURE MEMBER WHEREBY THE GREASE SEPARATING CHAMBER OF THE BODY IS ADAPTED TO BE A FLOW PART OF A WASTE WATER LINE, SAID CLOSURE MEMBER COMPRISING A CHAMBERED STRUCTURE DISPOSED ABOVE THE SEPARATING CHAMBER OF THE BODY AND COMPRISING AN AIR CHAMBER; A SECOND CHAMBERED STRUCTURE SEALED TO THE ATMOSPHERE AND DISPOSED ABOVE THE CHAMBER OF THE CLOSURE STRUCTURE, AND A CONDUIT EXTENDING DOWNWARDLY FROM THE SECOND CHAMBERED STRUCTURE TO THE TOP LEVEL REGION OF THE SEPARATING CHAMBER FOR THE HYDROSTATIC CONVEYANCE OF SEPARATED GREASE AND OILS CHAMBER THE SEPARATING CHAMBER UPWARDLY PAST THE AIR CHAMBER TO THE SECOND CHAMBER WHEN THE PASSAGEWAY AND THE SEPARATING CHAMBER AND THE SECOND CHAMBER ARE FILLED WITH LIQUID TO FORM A HYDROSTATIC COLUMN AND SAID AIR CHAMBER STRUCTURE HAVING AN AIR OUTLET EXTENDING INTO THE DISCHARGE OUTLET BELOW THE NORMAL LIQUID LEVEL OF THE DEVICE.
Claim 2
Independent Claim
178 words
AN APPARATUS FOR THE RECOVERY OF GREASES AND OILS FROM WASTE WATER COMPRISING A CONTINUOUS FLOW GREASE SEPARATING TRAP BODY HAVING A SEPARATING CHAMBER AND AN OUTLET LOCATED ABOVE THE INLET AND AN AIR SEALED TOP CLOSURE MEMBER WHEREBY THE GREASE SEPARATING CHAMBER OF THE BODY IS ADAPTED TO BE A FLOW PART OF A WASTE WATER LINE, SAID CLOSURE MEMBER COMPRISING A CHAMBERED STRUCTURE DISPOSED ABOVE THE SEPARATING CHAMBER OF THE BODY AND COMPRISING AN AIR CHAMBER; A SECOND CHAMBERED STRUCTURE SEALED TO THE ATMOSPHERE AND DISPOSED ABOVE THE CHAMBER OF THE CLOSURE STRUCTURE, AND A CONDUIT EXTENDING DOWNWARDLY FROM THE SECOND CHAMBERED STRUCTURE TO THE TOP LEVEL REGION OF THE SEPARATING CHAMBER FOR THE HYDROSTATIC CONVEYANCE OF SEPARATED GREASE AND OILS CHAMBER THE SEPARATING CHAMBER UPWARDLY PAST THE AIR CHAMBER TO THE SECOND CHAMBER WHEN THE PASSAGEWAY AND THE SEPARATING CHAMBER AND THE SECOND CHAMBER ARE FILLED WITH LIQUID TO FORM A HYDROSTATIC COLUMN AND SAID AIR CHAMBER STRUCTURE HAVING AN AIR OUTLET EXTENDING INTO THE DISCHARGE OUTLET BELOW THE NORMAL LIQUID LEVEL OF THE DEVICE.
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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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |