Ceramic separator and filter and method of production
Abstract
Abstract PRODUCTION OF A CERAMIC-LIKE POROUS POTASSIUM TITANATE MEMBER HAVING HIGH STRENGTH, FINE SUBSTANTIALLY UBIFORM PORE SIZE AND RESISTANVE TO AKALI SUITABLE FOR USE NIFORM BAT ERY SEPARATOR FUEL CELL MEMBRANE OR FILTER MEDIUM PREPARED ACCORDING TO ONE EMBODIMENT BY ADDING AN ORGANIC BINDER PARTICULARLY A WAX SUCH AS A POLYETHYLENE GLYCOL WAX (CARBOWAX), TO POTASSIUM TITANATE FIBERS, COMPRESSING THE RESULTING MIXTURE INTO BLOCKS, BREAKING AND GRANULATING SAID BLOCKS INTO PARTICULATES, COMPRESSING THE GRAULES INTO A MEMBER OR SHEET, SLOWLY HEATING THE RESULTING MEMBER AT TEMPERATURE OF AOUT 400 TO ABOUT 600*C TO DECOMPOSED THE ORGANIC BINDER, AND FIRING THE RESULTING MEMBER OR SHEET AT TEMPERATURE RANGING FROM ABOUT 1,000 TO 1,370*C.
Inventors
- 👤 J Smatko
Bibliographic Details
Claims Analysis
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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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |