US2803347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed bed deionizing apparatus
Assignee: Aquamatic Inc
•
Filing: 1954-04-30
•
Granted: 1957-08-20
•
Expires: 1974-04-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert A Whitlock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:40
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/02; B01J47/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A MIXED BED DEIONIZATION APPARATUS, THE COMBNATION OF AN UPSTANDING TANK CONTAINING CATION AND ANION EXCHARGE MATERIALS HAVING DIFFERENT APPARENT SPECIFIC GRAVITIES, CATION AND ANION EXCHANGE RESINS WHEN THE LATTER ARE SEPARATED, A LOWER CONDUIT FOR PASSING FLUID TO AND FROM THE BOTTOM OF THE TANK, SAID HAVING A FRUSTOCONICAL BOTTOM WALL EXTENDING DOWNWARDLY AND INWARDLY AND HAVING AN OPENING AT THE LOWER END THEREOF LARGER THAN THE FLOW AREA OF SAID LOWER CONDUIT, A SCREEN ASSEMBLY IN CLUDING A FLAT RETICULATED SCREEN FORMED OF NON-CORROSIVE MATERIAL FOR SUPPORTING THE EXCHANGE MATERIALS DIRECTLY THEREON AND HAVING A FINE MESH SUFFICIENTLY SMALL TO PREVENT THE PASSAGE OF THE EXCHANGE MATERIAL THERETHROUGH, A PAIR OF THIN RESILIENT GASKETS DISPOSED ON OPPOSITE SIDES OF THE SCREEN AND HAVING A CENTRAL OPENING SUBSTANTIALLY EQUAL TO THE OPENING IN SAID BOTTOM WALL, SAID GASKETS
Claim 2
Dependent Claim
140 words
IN A MIXED BED DEIONIZATION APPARATUS, THE COMBNATION OF AN UPSTANDING TANK CONTAINING CATION AND ANION EXCHARGE MATERIALS HAVING DIFFERENT APPARENT SPECIFIC GRAVITIES, CATION AND ANION EXCHANGE RESINS WHEN THE LATTER ARE SEPARATED, A LOWER CONDUIT FOR PASSING FLUID TO AND FROM THE BOTTOM OF THE TANK, SAID HAVING A FRUSTOCONICAL BOTTOM WALL EXTENDING DOWNWARDLY AND INWARDLY AND HAVING AN OPENING AT THE LOWER END THEREOF LARGER THAN THE FLOW AREA OF SAID LOWER CONDUIT, A SCREEN ASSEMBLY IN CLUDING A FLAT RETICULATED SCREEN FORMED OF NON-CORROSIVE MATERIAL FOR SUPPORTING THE EXCHANGE MATERIALS DIRECTLY THEREON AND HAVING A FINE MESH SUFFICIENTLY SMALL TO PREVENT THE PASSAGE OF THE EXCHANGE MATERIAL THERETHROUGH, A PAIR OF THIN RESILIENT GASKETS DISPOSED ON OPPOSITE SIDES OF THE SCREEN AND HAVING A CENTRAL OPENING SUBSTANTIALLY EQUAL TO THE OPENING IN SAID BOTTOM WALL, SAID GASKETS
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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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |