US3311552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous brine pulsing softener
Assignee: Culligan Inc
•
Filing: 1964-01-08
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Granted: 1967-03-28
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Expires: 1984-01-08
Abstract
No abstract record available.
Inventors
- 👤 William A Staats
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:18
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
A METHOD OF REGENERATING ION EXCHANGE MATERIAL UTILIZED FOR THE CONTINUOUS SOFTENING OF HARD WATER PASSING THROUGH A BED OF THE ION EXCHANGE MATERIAL, COMPRISING THE STEPS OF PERIODICALLY REMOVING AN INCREMENT OF THE ION EXCHANGE MATERIAL FROM THE BED TO A REGENERATION CHAMBER ON TOP OF PREVIOUSLY REMOVED INCREMENTS OF MATERIAL, PASSING A BRINE SOLUTION THROUGH THE PREVIOUSLY REMOVED INCREMENTS AND THE NEWLY REMOVED INCREMENT OF MATERIAL AS A CONTINUOUS BED, SUBSEQUENTLY PASSING A FRESH WATER RINSE THROUGH THE INCREMENTS OF MATERIAL IN THE REGENERATION CHAMBER FROM THE SOFTENING BED OF MATERIAL WHEREBY EACH INCREMENT OF MATERIAL IS SUBJECTED TO A PLURALITY OF BRINE PULSES SEPARATED BY RINSE PULSES, AND RETURNING THE LOWERMOST INCREMENT TO THE ION EXCHANGE MATERIAL BED.
References Cited (Backward Citations)
US2852464A
Cited
US3056743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |