US3564843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particulate trap
Assignee: Ethyl Corp
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Filing: 1969-02-27
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Granted: 1971-02-23
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Expires: 1989-02-27
Abstract
Abstract A CYCLONE PARTICULATE SEPARATOR HAVING A MESH-LINED COLLECTION CHAMBER SUCH THAT THE MESH DEFINES A HOLLOW CYLINDRICAL CORE HAVING THE SAME DIAMETER AS THE REJECT HOLE. A PERFORATED LINER CAN BE PLACED IN THE CORE. PREVENTS THE RE-ENTRAINMENT OF PARTICULATES REMOVED FROM A PULSATING GAS STREAM SUCH AS THE EXHAUST STREAM FROM AN INTERNAL COMBUSTION ENGINE.
Inventors
- 👤 Daniel A Hirschler Jr
- 👤 Denis L Lenane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:41
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/037; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/30
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |