Manufacture of adsorbent composite
Abstract
Abstract THE METHOD OF PREPARING AN ADSORBENT COMPOSITE WHICH COMPRISES PRECOATING AN ADSORBENT WITH AN INERT REMOVABLE SHIELDING LIQUID, THEREAFTER UNIFORMLY DISTRIBUTING THE PRECOATED ADSORBENT IN A MATRIX AND SUBSEQUENTLY REMOVING SAID SHIELDING LIQUID FROM COMPOSITE. A SPECIFIC EMBODIMENT COMPRISES PRECOATING CARBON GRANULES WITH DECALIN, SEPARATELY PREPARING A POLYURETHANE FORMULATION, ADDING THE PRECOATED CARBON GRANULES THERETO, FOAMING THE POLYURETHANE FORMULATION, AND SUBSEQUENTLY HEATING THE COMPOSITE IN VACUUM TO REMOVE THE DECALIN. IN ONE EMBODIMENT, THE FINAL COMPOSITE IS ESPECIALLY USEFUL TO ADSORB GASOLINE VAPORS FROM THE CARBURETOR AND/OR FUEL SYSTEM OF AN AUTOMOBILE AND FOR THE CONTROLLED DESORPTION OF THE GASOLINE UPON RETARTING THE ENGINE.
Inventors
- 👤 C Hayes
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |