US3564580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-pollution device
Assignee: Dorado Research Corp
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Filing: 1969-12-29
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Granted: 1971-02-16
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Expires: 1989-12-29
Abstract
Abstract AN ANTI-POLLUTION DEVICE COMPRISING A PLATE MEMBER IS INSERTED BETWEEN A CARBURETOR AND THE INTAKE MANIFOLD. THE MEMBER HAS BORE WHICH IS SHAPED WITH A STRAIGHT SECTION, A CONVERGENT SECTION AND A DIVERGENT SECTION. SUPPLEMENTAL AIR IS PERMITTED TO ENTER THE DIVERGENT SECTION BY MEANS OF HOLE IN A PLENUM CHAMBER (SURROUNDING THE BORES) WHICH RECEIVE THE SUPPLEMENTAL AIR FROM CONDUITS. A LARGER QUANTITY OF AIR IS AUTOMATICALLY CONTROLLED BY A VALVE TO ENTER THE BORES THROUGH THE STRAIGHT SECTION DURING ENGINE DECELERATION.
Inventors
- 👤 Alphonse Cinque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:03
CPC Classifications
F; F02; F02M; F02M35/00; F02M23/00; F02M23/001; F02M23/12; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |