US3179097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent valve for preventing excess crankcase pressure or vacuum
Assignee: Individual
•
Filing: 1963-06-04
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Granted: 1965-04-20
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Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 William E Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:03
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/0011; F01M13/04; F16; F16N; F16N2250/00; F16N2250/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A CRANKCASE VENT ASSEMBLY FOR INTERNAL COMBUSTION ENGINES, SAID ASSEMBLY COMPRISING A CLOSED RESERVOIR INCLUDING AN INLET IN AN UPPER PORTION THEREOF ADAPTED TO BE COMMUNICATED WITH THE INTERIOR OF AN INTERNAL COMBUSTION ENGINE CRANKCASE FOR RECEIVING OIL SATURATED FUMES FROM SAID CRANKCASE AND ALSO HAVING AN OUTLET IN AN UPPER PORTION THEREOF ADAPTED TO BE COMMUNICATED WITH A SUITABLE SOURCE OF VACUUM SUCH AS THE INTAKE MANIFOLD OF SAID ENGINE, SAID RESERVOIR MEANS INCLUDING MEANS COMMUNICATED WITH THE INTERIOR THEROF AND OPERATIVE TO PREVENT AN EXCESSIVE BUILD-UP OF PRESSURE AS WELL AS AN EXCESSIVE DROP OF AIR PRESSURE IN SAID RESERVOIR RELATIVE TO THE PRESSURE OF THE AMBIENT ATMOSPHERE.
Claim 2
Dependent Claim
110 words
A CRANKCASE VENT ASSEMBLY FOR INTERNAL COMBUSTION ENGINES, SAID ASSEMBLY COMPRISING A CLOSED RESERVOIR INCLUDING AN INLET IN AN UPPER PORTION THEREOF ADAPTED TO BE COMMUNICATED WITH THE INTERIOR OF AN INTERNAL COMBUSTION ENGINE CRANKCASE FOR RECEIVING OIL SATURATED FUMES FROM SAID CRANKCASE AND ALSO HAVING AN OUTLET IN AN UPPER PORTION THEREOF ADAPTED TO BE COMMUNICATED WITH A SUITABLE SOURCE OF VACUUM SUCH AS THE INTAKE MANIFOLD OF SAID ENGINE, SAID RESERVOIR MEANS INCLUDING MEANS COMMUNICATED WITH THE INTERIOR THEROF AND OPERATIVE TO PREVENT AN EXCESSIVE BUILD-UP OF PRESSURE AS WELL AS AN EXCESSIVE DROP OF AIR PRESSURE IN SAID RESERVOIR RELATIVE TO THE PRESSURE OF THE AMBIENT ATMOSPHERE.
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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |