US3398090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion exchange water treatment using vibratory agitation
Assignee: Henkel Corp
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Filing: 1965-10-20
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Granted: 1968-08-20
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Bartell Rudy
- 👤 Herbert A Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:51
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/02; B01J47/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
THE METHOD OF PROCESSING WATER UTILIZING A BED OF ION EXCHANGE PARTICLES COMPRISING THE STEPS OF: (A) PASSING WATER THROUGH SAID BED OF ION EXCHANGE PARTICLES CONFINED WITHIN A CONTAINER FOR REMOVING IMPURITIES FROM SAID WATER, AND (B) PERIODICALLY REGENERATING SAID BED OF PARTICLES BY SUCCESSIVELY (1) PASSING WATER THROUGH SAID BED IN THE BACKWASH DIRECTION, (2) PASSING A BRINE SOLUTION THROUGH SAID BED OF EXCHANGE PARTICLES, (3) RINSING SAID PARTICLES BY PASSING WATER THROUGH SAID BED OF PARTICLES, AND (4) SUBJECTING SAID PARTICLES TO VIBRATORY AGITATION HAVING A FREQUENCY WITHIN THE AUDIBLE AND SUBAUDIBLE RANGE DURING STEPS (1), (2) AND (3), AND (C) PROCEEDING WITHSTEP (A) SUPRA.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |