US3291316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed means for clarification apparatus
Assignee: Eimco Corp
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Filing: 1963-09-25
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Granted: 1966-12-13
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Expires: 1983-09-25
Abstract
No abstract record available.
Inventors
- 👤 Earl M Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:00
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/006; B; B01; B01D; B01D21/00; B01D21/02; B01D21/04; B01D21/06; B01D21/24; B01D21/2405; B01D21/2427; B01D21/245; B01D21/30; B01D21/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A CLARIFICATION APPARATUS OF THE TYPE INCLUDING A SEDIMENTATION TANK, A SLUGE OUTLET IN THE LOWER PORTION THEREOF, A LIQUID-LEVEL DEFINING EFFLUENT OUTLET IN AN UPPER CENTRAL PORTION THEREOF AND FEED INTRODUCTION MEANS, THE IMPROVEMENT COMPRISING A FEED INTRODUCTION MEANS HAVING A ROTATABLY MOUNTED HOLLOW ARM EXTENDING RADIALLY FROM THE CENTER OF THE TANK IN CLOSELY OVERLYING RADIALLY SHIP TO THE BOTTOM OF THE TANK AND TERMINATING UPWARDLY ADJACENT THE PERIPHERY OF THE TANK, AND A PLURALITY OF FEED INLET PORTS LOCATED AT THE UPWARDLY EXTENDING END OF SAID HOLLOW ARM TO INTRODUCE FEED AT A MEDIUM ELEVATION INTERMEDIATE THE EFFLUENT OUTLET AN BOTTOM OF SAID TANK AND SUFFICIENTLY ABOVE THE TANK BOTTOM TO PREVENT AGITATION OF SETTLED SLUDGE, SAID PORTS ADAPTED TO DISCHARGE FEED LIQUID ADJACENT THE TANK WALL AND IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE TANK AXIS.
Claim 2
Dependent Claim
141 words
IN A CLARIFICATION APPARATUS OF THE TYPE INCLUDING A SEDIMENTATION TANK, A SLUGE OUTLET IN THE LOWER PORTION THEREOF, A LIQUID-LEVEL DEFINING EFFLUENT OUTLET IN AN UPPER CENTRAL PORTION THEREOF AND FEED INTRODUCTION MEANS, THE IMPROVEMENT COMPRISING A FEED INTRODUCTION MEANS HAVING A ROTATABLY MOUNTED HOLLOW ARM EXTENDING RADIALLY FROM THE CENTER OF THE TANK IN CLOSELY OVERLYING RADIALLY SHIP TO THE BOTTOM OF THE TANK AND TERMINATING UPWARDLY ADJACENT THE PERIPHERY OF THE TANK, AND A PLURALITY OF FEED INLET PORTS LOCATED AT THE UPWARDLY EXTENDING END OF SAID HOLLOW ARM TO INTRODUCE FEED AT A MEDIUM ELEVATION INTERMEDIATE THE EFFLUENT OUTLET AN BOTTOM OF SAID TANK AND SUFFICIENTLY ABOVE THE TANK BOTTOM TO PREVENT AGITATION OF SETTLED SLUDGE, SAID PORTS ADAPTED TO DISCHARGE FEED LIQUID ADJACENT THE TANK WALL AND IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE TANK AXIS.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |