Circulator for circulating water in receptacles
Abstract
Abstract A HOUSING HAS AN UPPER FIRST PORTION ADAPTED TO BE LOCATED ABOVE, AND A LOWER SECOND PORTION ADAPTED TO BE, AT LEAST IN PART, LOCATED BELOW THE LEVEL OF WATER IN A RECEPTACLE. THE SECOND PORTION HAS AN INLET AND AN OUTLET. A PUMP AND A DRIVE FOR THE SAME ARE MOUNTED IN THE FIRST PORTION AND THE PUMP HAS AN INTAKE PORT AND A DISCHARGE PORT. A DISCHARGE CONDUIT IS PROVIDED IN THE HOUSING AND COMMUNICATES WITH THE DISCHARGE PORT AND WITH THE OUTLET. A RESERVOIR IS PROVIDED IN THE FIRST PORTION AND COMMUNICATES WITH THE INTAKE PORT ON A FIRST LEVEL WHICH IS LOWER THAN THAT OF THE DISCHARGE PORT. AN INTAKE CONDUIT IS CONNECTED WITH THE INLET AND COMMUNICATES WITH THE RESERVOIR ON A HIGHER SECOND LEVEL SO THAT THERE WILL ALWAYS BE A QUANTITY OF WATER RETAINED IN THE RESERVOIR INTERMEDIATE THE LEVELS, IRRESPECTIVE OF THE OPERATING CONDITION OF THE CIRCULATOR, SO THAT THE PUMP IS SELF-PRIMING.
Inventors
- 👤 E Weller
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |