US2636851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion-exchange materials and method of making and using the same
Assignee: Veolia WTS Systems USA Inc
•
Filing: 1949-07-09
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Granted: 1953-04-28
•
Expires: 1969-07-09
Abstract
No abstract record available.
Inventors
- 👤 Juda Walter
- 👤 Wayne A Mcrae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:23
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/24; B; B01; B01J; B01J47/00; B01J47/02; B01J47/06; B01J47/08; C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2206; C08J5/2275; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; C08J2379/00; C08J2379/04; C08J2379/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
AS AN ARTICLE OF MANUFACTURE, A SOLID UNFRACTURED STRUCTURE HAVING AT LEAST TWO DIMENSIONS EACH IN EXCESS OF 0.25 INCH, AND COMPRISING AS AN ESSENTIAL PART EXTENDING SUBSTANTIALLY THROUGHOUT SAID STRUCTURE, A PREDOMINANT AMOUNT OF AN ION EXCHANGE RESIN WHICH COMPRISES: AN INSOLUBLE INFUSIBLE SYNTHETIC ORGANIC POLYMERIC MATRIX, DISSOCIABLE IONIC GROPS CHEMICALLY BONDED TO SAID MATRIX, AND WATER IN GEL RELATIONSHIP WITH SAID MATRIX; SAID GROUPS HAVING A DIS-SOCIATION CONSTANT OF AT LEAST 0.5 AND BEING PRESENT IN AN AMOUNT OF AT LEAST 0.3 MILLIEQUIVALENT PER GRAM OF DRY RESIN, AND SAID WATER BEING PRESENT IN AN AMOUNT OF AT LEAST 15% OF THE WEIGHT OF THE DRY RESIN.
Claim 2
Dependent Claim
109 words
AS AN ARTICLE OF MANUFACTURE, A SOLID UNFRACTURED STRUCTURE HAVING AT LEAST TWO DIMENSIONS EACH IN EXCESS OF 0.25 INCH, AND COMPRISING AS AN ESSENTIAL PART EXTENDING SUBSTANTIALLY THROUGHOUT SAID STRUCTURE, A PREDOMINANT AMOUNT OF AN ION EXCHANGE RESIN WHICH COMPRISES: AN INSOLUBLE INFUSIBLE SYNTHETIC ORGANIC POLYMERIC MATRIX, DISSOCIABLE IONIC GROPS CHEMICALLY BONDED TO SAID MATRIX, AND WATER IN GEL RELATIONSHIP WITH SAID MATRIX; SAID GROUPS HAVING A DIS-SOCIATION CONSTANT OF AT LEAST 0.5 AND BEING PRESENT IN AN AMOUNT OF AT LEAST 0.3 MILLIEQUIVALENT PER GRAM OF DRY RESIN, AND SAID WATER BEING PRESENT IN AN AMOUNT OF AT LEAST 15% OF THE WEIGHT OF THE DRY RESIN.
Claim 3
Independent Claim
133 words
A METHOD OF TRANSFERRING IONS OF ONE CHARGE FROM ONE ELECTROLYTIC SOLUTION TO ANOTHER TO THE SUBSTANTIAL EXCLUSION OF IONS OF THE OTHER CHARGE COMPRISING SEPARATING SAID SOLUTIONS BY MEANS OF A BARRIER AND PASSING A DIRECT ELETRIC CURRENT IN SERIES ACROSS SAID SOLUTIONS AND SEPARATING BARRIER, SAID BARRIER COMPRISING AS AN ESSENTIAL PART EXTENDING SUSTANTIALLY THROUGHOUT, A PREDOMINANT AMOUNT OF AN ION EXCHANGE RESIN WHICH COMPRISES: AN INSOLUBLE INFUSIBLE SYNTHETIC ORGANIC POLYMERIC MATRIX, DISSOCIABLE IONIC GROUPS CHEMICALLY BONDED TO SAID MATRIX AND WATER IN GEL RELATIONSHIP WITH SAID MATRIX; SAID GROUPS HAVING A DISSOCIATION CONSTANT GREATER THAN 10-5 AND BEING PRESENT IN AN AMOUNT OF AT LEAST 0.3 MILLIEQUIVALENT PER GRAM OF DRY RESIN, AND SAID WATER BEING PRESENT IN AN AMOUNT OF AT LEAST 15% OF THE WEIGHT OF DRY RESIN.
Claim 4
Independent Claim
133 words
A METHOD OF TRANSFERRING IONS OF ONE CHARGE FROM ONE ELECTROLYTIC SOLUTION TO ANOTHER TO THE SUBSTANTIAL EXCLUSION OF IONS OF THE OTHER CHARGE COMPRISING SEPARATING SAID SOLUTIONS BY MEANS OF A BARRIER AND PASSING A DIRECT ELETRIC CURRENT IN SERIES ACROSS SAID SOLUTIONS AND SEPARATING BARRIER, SAID BARRIER COMPRISING AS AN ESSENTIAL PART EXTENDING SUSTANTIALLY THROUGHOUT, A PREDOMINANT AMOUNT OF AN ION EXCHANGE RESIN WHICH COMPRISES: AN INSOLUBLE INFUSIBLE SYNTHETIC ORGANIC POLYMERIC MATRIX, DISSOCIABLE IONIC GROUPS CHEMICALLY BONDED TO SAID MATRIX AND WATER IN GEL RELATIONSHIP WITH SAID MATRIX; SAID GROUPS HAVING A DISSOCIATION CONSTANT GREATER THAN 10-5 AND BEING PRESENT IN AN AMOUNT OF AT LEAST 0.3 MILLIEQUIVALENT PER GRAM OF DRY RESIN, AND SAID WATER BEING PRESENT IN AN AMOUNT OF AT LEAST 15% OF THE WEIGHT OF DRY RESIN.
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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) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |