US2895810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for regenerating spent water softening agents
Assignee: Pier Inc
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Filing: 1957-08-30
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Granted: 1959-07-21
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Expires: 1977-08-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter P Casey
- 👤 Lewis E Cascadden
- 👤 Luther L Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:45
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/36; C01B33/46; B; B01; B01J; B01J49/00; B01J49/10; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86445; Y10T137/87571; Y10T137/87652; Y10T137/8766; Y10T137/87668
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN APPARATUS FOR REGENERATING SPENT ION EXCHANGE MATERIAL IN WHICH SAID MATERIAL IS TREATED WITH BRINE AND WASH WATER IN A TREATMENT TANK, THECOMBINATION WHICH COMPRISES; WATER INJECTOR PUMPING MEANS FOR TRANSFERRING SPENT MATERIAL INTO SAID TANK AND REGENERATED MATERIAL OUT OF SAID TANK, MEANS FOR INTRODUCING WASH WATER INTO SAID TANK, MEANS FOR INTRODUCING BRINE INTO SAID TANK, ELECTRICALLY ACTUATED VALVES CONTROLLING SAID PUMPING MEANS AND SAID WASH WATER AND BRINE INTRODUCTION MEANS, A TIMING DEVICE TO ACTUATE SAID VALVES AT TIMES AND FOR INTERVALS DURING A REGENERATION CYCLE, AND A CONSTANT PRESSURE VALVE CONTROLLING THE WATER SUPPLY TO SAID PUMPS AND WASH WATER INTRODUCTION MEANS.
Claim 2
Dependent Claim
107 words
IN APPARATUS FOR REGENERATING SPENT ION EXCHANGE MATERIAL IN WHICH SAID MATERIAL IS TREATED WITH BRINE AND WASH WATER IN A TREATMENT TANK, THECOMBINATION WHICH COMPRISES; WATER INJECTOR PUMPING MEANS FOR TRANSFERRING SPENT MATERIAL INTO SAID TANK AND REGENERATED MATERIAL OUT OF SAID TANK, MEANS FOR INTRODUCING WASH WATER INTO SAID TANK, MEANS FOR INTRODUCING BRINE INTO SAID TANK, ELECTRICALLY ACTUATED VALVES CONTROLLING SAID PUMPING MEANS AND SAID WASH WATER AND BRINE INTRODUCTION MEANS, A TIMING DEVICE TO ACTUATE SAID VALVES AT TIMES AND FOR INTERVALS DURING A REGENERATION CYCLE, AND A CONSTANT PRESSURE VALVE CONTROLLING THE WATER SUPPLY TO SAID PUMPS AND WASH WATER INTRODUCTION MEANS.
References Cited (Backward Citations)
US2098893A
Cited
US2503901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |