Patent US3557535A successfully refreshed from Google Patents.
US3557535A
Expired / Lapsed
US
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Air washer
Assignee: Poma Inc
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Filing: 1968-11-25
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Granted: 1971-01-26
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Expires: 1988-11-25
Abstract
Abstract AN INDUSTRIAL AIR WASHER HAS A VERTICAL CYLINDERICAL HOUSING. CIRCULARLY ARRANGED VERTICAL IMPINGEMENT BAFFER AND RADIALLY EXTENDING IMPINGEMENT BAFFLES WITH V-SHAPED CROSS SECTIONS ARE CONSTANTLY SPRAYED WITH WATER. AIR IS DRAWN THROUGH THE HOUSING AND IMPINGES ON THESE BAFFLES, THE WATER TRAPPING FOREIGN PARTICLES AND WASHING THEM DOWN TO A POOL AT THE BOTTOM. THE AIR RISES THROUGH A SERIES OF MOISTURE ELIMINATORS, BEING DRAWN UPWARDLY BY A FAN. IN A SECOND EMBODIMENT, THE BAFFLES ARE CONSTANTLY ROTATED.
Inventors
- 👤 Stanley O Howick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:10
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |