US3277876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crankcase ventilation system for an internal combustion system
Assignee: Ford Motor Co
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Filing: 1964-09-30
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Granted: 1966-10-11
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Expires: 1984-09-30
Abstract
No abstract record available.
Inventors
- 👤 Abts Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:16
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; Y; Y10; Y10S; Y10S55/00; Y10S55/19; Y10S55/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
AN INTERNAL COMBUSTION ENGINE COMPRISING AN INDUCTION SYSTEM, AN AIR FILTER ASSEMBLY FOR SAID INDUCTION SYSTEM, SAID AIR FILTER ASSEMBLY INCLUDING A FILTER MEDIUM FOR FILTERING INDUCTION SYSTEM AIR, A CRANKCASE VENTILATION SYSTEM FOR SAID ENGINE INCLUDING A VENTILATING AIR INLET AND A VENTILATING AIR OUTLET, FIRST AIR CONDUIT MEANS FOR DIRECTING AIR FLOW FROM SAID AIR FILTER ASSEMBLY TO SAID VENTILATING AIR INLET, SECOND AIR CONDUIT MEANS FOR DIRECTING AIR FLOW FROM SAID VENTILATING AIR OUTLET TO SAID AIR FILTER ASSEMBLY, AND MEANS IN SAID AIR FILTER ASSEMBLY FOR CREATING A PRESSURE DIFFERENTIAL BETWEEN SAID VENTILATING AIR INLET AND SAID VENTILATING AIR OUTLET TO CAUSE A POSITIVE FLOW OF VENTILATING AIR GASES THROUGH SAID CRANKCASE VENTILATING SYSTEM INTO SAID INDUCTION SYSTEM, FILTER ASSEMBLY COMPRISING AN AIR INTAKE REGION OF LARGE VOLUME AND A FLOW OUTLET REGION OF REDUCED CROSS SECTIONAL AREA, THE INTAKE AIR RECEIVED BY SAID INTAKE REGION BEING AC-
Claim 2
Dependent Claim
152 words
AN INTERNAL COMBUSTION ENGINE COMPRISING AN INDUCTION SYSTEM, AN AIR FILTER ASSEMBLY FOR SAID INDUCTION SYSTEM, SAID AIR FILTER ASSEMBLY INCLUDING A FILTER MEDIUM FOR FILTERING INDUCTION SYSTEM AIR, A CRANKCASE VENTILATION SYSTEM FOR SAID ENGINE INCLUDING A VENTILATING AIR INLET AND A VENTILATING AIR OUTLET, FIRST AIR CONDUIT MEANS FOR DIRECTING AIR FLOW FROM SAID AIR FILTER ASSEMBLY TO SAID VENTILATING AIR INLET, SECOND AIR CONDUIT MEANS FOR DIRECTING AIR FLOW FROM SAID VENTILATING AIR OUTLET TO SAID AIR FILTER ASSEMBLY, AND MEANS IN SAID AIR FILTER ASSEMBLY FOR CREATING A PRESSURE DIFFERENTIAL BETWEEN SAID VENTILATING AIR INLET AND SAID VENTILATING AIR OUTLET TO CAUSE A POSITIVE FLOW OF VENTILATING AIR GASES THROUGH SAID CRANKCASE VENTILATING SYSTEM INTO SAID INDUCTION SYSTEM, FILTER ASSEMBLY COMPRISING AN AIR INTAKE REGION OF LARGE VOLUME AND A FLOW OUTLET REGION OF REDUCED CROSS SECTIONAL AREA, THE INTAKE AIR RECEIVED BY SAID INTAKE REGION BEING AC-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |