US3306448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic skim tank and system
Assignee: Sta Rite Industries LLC
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Filing: 1966-02-09
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Granted: 1967-02-28
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Expires: 1986-02-09
Abstract
No abstract record available.
Inventors
- 👤 William O Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:17
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; E04H4/1209; E04H4/1272; B; B01; B01D; B01D24/00; B01D24/02; B01D24/10; B01D24/12; B01D24/48; B01D24/4869; B01D35/00; B01D35/14; B01D35/147; B01D37/00; B01D37/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2567; Y10T137/2569; Y10T137/7287; Y10T137/7358; Y10T137/7423; Y10T137/7426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN COMBINATION, A TANK HAVING AN INLET IN AN UPPER PORTION THEREOF TO RECEIVE WATER FROM THE SURFACE OF A SWIMMING POOL OR THE LIKE; A PARTITION EXTENDING ACROSS THE TANK AND BELOW SAID INLET AND DEFINING A CHAMBER BELOW THE PARTITION; SAID PARTITION HAVING AN OPENING ADAPTED TO BE SUPPLIED BY WATER ENTERING THE TANK THROUGH THE INLET; MEANS FORMING A SEAT ABOUT SAID OPENING; A FLOAT ABOVE THE PARTITION AND ENGAGEABLE WITH THE SEAT TO CLOSE THE OPENING; SAID FLOAT BEING ENGAGEABLE WITH SAID SEAT IN RESPONSE TO A LOWERING OF THE LEVEL OF WATER IN THE TANK SUBSTANTIALLY BELOW THE NORMAL OPERATING LEVEL THEREOF; A CAGE ADJACENT TO AND ABOVE THE SEAT CONFINING THE FLOAT TO THE AREA ADJACENT TO THE SEAT; MEANS FORMING AN OUTLET FROM THE CHAMBER ADAPTED TO BE CONNECTED TO THE SUCTION LINE OF A PUMP; AND BY-PASS MEANS OPERA-
Claim 2
Dependent Claim
147 words
IN COMBINATION, A TANK HAVING AN INLET IN AN UPPER PORTION THEREOF TO RECEIVE WATER FROM THE SURFACE OF A SWIMMING POOL OR THE LIKE; A PARTITION EXTENDING ACROSS THE TANK AND BELOW SAID INLET AND DEFINING A CHAMBER BELOW THE PARTITION; SAID PARTITION HAVING AN OPENING ADAPTED TO BE SUPPLIED BY WATER ENTERING THE TANK THROUGH THE INLET; MEANS FORMING A SEAT ABOUT SAID OPENING; A FLOAT ABOVE THE PARTITION AND ENGAGEABLE WITH THE SEAT TO CLOSE THE OPENING; SAID FLOAT BEING ENGAGEABLE WITH SAID SEAT IN RESPONSE TO A LOWERING OF THE LEVEL OF WATER IN THE TANK SUBSTANTIALLY BELOW THE NORMAL OPERATING LEVEL THEREOF; A CAGE ADJACENT TO AND ABOVE THE SEAT CONFINING THE FLOAT TO THE AREA ADJACENT TO THE SEAT; MEANS FORMING AN OUTLET FROM THE CHAMBER ADAPTED TO BE CONNECTED TO THE SUCTION LINE OF A PUMP; AND BY-PASS MEANS OPERA-
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |