US2670328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water softening apparatus
Assignee: Individual
•
Filing: 1949-09-24
•
Granted: 1954-02-23
•
Expires: 1969-09-24
Abstract
No abstract record available.
Inventors
- 👤 Francis H Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:47
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
AUTOMATIC WATER SOFTENING APPARATUS COMPRISING: A SOFTENER TANK HAVING A HARD WATER INLET AND A SOFT WATER OUTLET; A SEALED BRINE TABK; A VALVE BODY HAVING A HYDRAULIC CYLINDER; A PISTON WORKING IN SAID CYLINDER AND HAVING A STEM; TWO VALVES FIXED TO SAID STEM FOR MOVEMENT BY THE PISTON TO OCCUPY A SERVICE POSITION OR A REGENERATING POSITION; ONE OF SAID VALVES, WHEN IN SERVICE POSITION, CONNECTING SAID HARD WATER INLET TO A SOURCE OF HARD WATER UNDER PRESSURE FOR THE FLOW OF WATER THROUGH THE SOFTENER TANK TO A SERVICE LINE; THE OTHER OF SAID TWO VALVES, WHEN IN REGENERATING POSITION, CONNECTING THE BRINE TANK TO THE SOFT WATER OUTLET TO FORCE BRINE IN A CONTERFLOW DIRECTION THROUGH THE SOFTENER TANK; AN INLET VALVE CONTROLLING THE ADMISSION OF WATER TO SAID CYLINDER; MEANS OPERATIVELY CONNECTED TO SAID INLET VALVE TO OPEN SAME FOR A PREDETERMINED PERIOD OF TIME SO AS TO EFFECT MOVEMENT OF SAID TWO VALVES TO REGENERATING POSITION; MEANS RE-
Claim 2
Dependent Claim
164 words
AUTOMATIC WATER SOFTENING APPARATUS COMPRISING: A SOFTENER TANK HAVING A HARD WATER INLET AND A SOFT WATER OUTLET; A SEALED BRINE TABK; A VALVE BODY HAVING A HYDRAULIC CYLINDER; A PISTON WORKING IN SAID CYLINDER AND HAVING A STEM; TWO VALVES FIXED TO SAID STEM FOR MOVEMENT BY THE PISTON TO OCCUPY A SERVICE POSITION OR A REGENERATING POSITION; ONE OF SAID VALVES, WHEN IN SERVICE POSITION, CONNECTING SAID HARD WATER INLET TO A SOURCE OF HARD WATER UNDER PRESSURE FOR THE FLOW OF WATER THROUGH THE SOFTENER TANK TO A SERVICE LINE; THE OTHER OF SAID TWO VALVES, WHEN IN REGENERATING POSITION, CONNECTING THE BRINE TANK TO THE SOFT WATER OUTLET TO FORCE BRINE IN A CONTERFLOW DIRECTION THROUGH THE SOFTENER TANK; AN INLET VALVE CONTROLLING THE ADMISSION OF WATER TO SAID CYLINDER; MEANS OPERATIVELY CONNECTED TO SAID INLET VALVE TO OPEN SAME FOR A PREDETERMINED PERIOD OF TIME SO AS TO EFFECT MOVEMENT OF SAID TWO VALVES TO REGENERATING POSITION; MEANS RE-
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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) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |