US3337057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Settling tanks for sewage
Assignee: Individual
•
Filing: 1965-08-16
•
Granted: 1967-08-22
•
Expires: 1985-08-16
Abstract
No abstract record available.
Inventors
- 👤 James F Bolton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:35
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/10; B01D21/12; B01D21/02; B01D21/04; B01D21/18; B01D21/24; B01D21/2444; B01D21/245; B01D21/2466
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A SEWAGE SETTLING TANK OF RECTANGULAR PLANFORM, IN COMBINATION WITH DE-SLUDGING MEANS COMPRISING: A BRIDGE SPANNING SAID TANK, MEANS FOR MOVING SAID BRIDGE BACK AND FORTH ALONG THE LENGTH OF SAID TANK, A ROW OF SLUDGE DRAW-OFF PIPES DEPENDING FROM SAID BRIDGE AND TERMINATING AT THEIR LOWER ENDS IN A PLANE SPACED SLIGHTLY ABOVE THE FLOOR OF SAID TANK, MEANS FOR DRAWING SLUDGE THROUGH SAID DRAW-OFF PIPES AND DEPOSITING IT IN A SUITABLE RECEPTACLE, AND A FLOOR SCRAPER UNIT MOUNTED BETWEEN EACH TWO SUCCUSSIVE PIPES, EACH FLOOR SCRAPER COMPRISING: TWO OPPOSED PAIRS OF V-ORIENTED VERTICAL PLATES ARRANGED IN A DIAMOND PLANFORM, THE LOWER EDGES OF SAID PLATES TOUCHING THE TANK FLOOR, SAID PIPES BEING ARRANGED AT THE CORNERS OF EACH DIAMOND SHAPED SCRAPER, EACH PIPE THEREBY BEING ARRANGED AT THE APICES OF TWO OPPOSITELY FACING POCKETS, THE POCKETS HAVING OPPOSED DIVERGING WALLS DEFINED BY SAID PLATES, WHEREBY SLUDGE IS DIRECTED TOWARD THE LOWER ENDS OF SAID PIPES REGARDLESS OF THE DIRECTION IN WHICH SAID BRIDGE MOVES.
Claim 2
Dependent Claim
166 words
A SEWAGE SETTLING TANK OF RECTANGULAR PLANFORM, IN COMBINATION WITH DE-SLUDGING MEANS COMPRISING: A BRIDGE SPANNING SAID TANK, MEANS FOR MOVING SAID BRIDGE BACK AND FORTH ALONG THE LENGTH OF SAID TANK, A ROW OF SLUDGE DRAW-OFF PIPES DEPENDING FROM SAID BRIDGE AND TERMINATING AT THEIR LOWER ENDS IN A PLANE SPACED SLIGHTLY ABOVE THE FLOOR OF SAID TANK, MEANS FOR DRAWING SLUDGE THROUGH SAID DRAW-OFF PIPES AND DEPOSITING IT IN A SUITABLE RECEPTACLE, AND A FLOOR SCRAPER UNIT MOUNTED BETWEEN EACH TWO SUCCUSSIVE PIPES, EACH FLOOR SCRAPER COMPRISING: TWO OPPOSED PAIRS OF V-ORIENTED VERTICAL PLATES ARRANGED IN A DIAMOND PLANFORM, THE LOWER EDGES OF SAID PLATES TOUCHING THE TANK FLOOR, SAID PIPES BEING ARRANGED AT THE CORNERS OF EACH DIAMOND SHAPED SCRAPER, EACH PIPE THEREBY BEING ARRANGED AT THE APICES OF TWO OPPOSITELY FACING POCKETS, THE POCKETS HAVING OPPOSED DIVERGING WALLS DEFINED BY SAID PLATES, WHEREBY SLUDGE IS DIRECTED TOWARD THE LOWER ENDS OF SAID PIPES REGARDLESS OF THE DIRECTION IN WHICH SAID BRIDGE MOVES.
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |