US2962437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of operating water softening apparatus
Assignee: Union Tank Car Co
•
Filing: 1955-01-03
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Granted: 1960-11-29
•
Expires: 1975-01-03
Abstract
No abstract record available.
Inventors
- 👤 Lynn G Lindsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:10
CPC Classifications
B; B01; B01J; B01J49/00; B01J49/75; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86453; Y10T137/86493; Y10T137/86718; Y10T137/86726
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
THE METHOD OF OPERATING A WATER SOFTENER CONTAINING A BED OF ION EXCHANGE RESIN IN THE FORM OF SPHEROIDAL PARTICLES WHICH INCLUDES THE STEPS OF CAUSING WATER TO FLOW UPWARDLY THROUGH THE BED FOR A PREDETERMINED FIXED PERIOD OF TIME WHEREBY THE BED IS EXPANDED, THEN FORCIBLY COMPACTING THE BED BY FLOWING WATER DOWNWARDLY THROUGH IT, THEN DEPOSITING ON THE TOP SURFACE OF THE COMPACTED BED A CHARGE OF SOLID REGENERATING MATERIAL OF RELATIVELY HIGH SPECIFIC GRAVITY, AND REGENERATING THE BED BY CAUSING WATER TO FLOW DOWNWARDLY THROUGH SAID CHARGE AND BED FOR A PREDETERMINED FIXED PERIOD OF TIME.
Claim 2
Independent Claim
99 words
THE METHOD OF OPERATING A WATER SOFTENER CONTAINING A BED OF ION EXCHANGE RESIN IN THE FORM OF SPHEROIDAL PARTICLES WHICH INCLUDES THE STEPS OF CAUSING WATER TO FLOW UPWARDLY THROUGH THE BED FOR A PREDETERMINED FIXED PERIOD OF TIME WHEREBY THE BED IS EXPANDED, THEN FORCIBLY COMPACTING THE BED BY FLOWING WATER DOWNWARDLY THROUGH IT, THEN DEPOSITING ON THE TOP SURFACE OF THE COMPACTED BED A CHARGE OF SOLID REGENERATING MATERIAL OF RELATIVELY HIGH SPECIFIC GRAVITY, AND REGENERATING THE BED BY CAUSING WATER TO FLOW DOWNWARDLY THROUGH SAID CHARGE AND BED FOR A PREDETERMINED FIXED PERIOD OF TIME.
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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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |