Patent US3144044A successfully refreshed from Google Patents.
US3144044A
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Apparatus for providing closed ventilation of automotive crankcases
Assignee: Union Carbide Corp
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Filing: 1962-12-06
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Granted: 1964-08-11
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Expires: 1982-12-06
Abstract
No abstract record available.
Inventors
- 👤 Clifford C Anthes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:54
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/023; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7748; Y10T137/7752; Y10T137/7781; Y10T137/7835; Y10T137/7836
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A FLOW REGULATOR FOR USE IN A CRANKCASE VENTILATING PASSAGE BETWEEN THE CRANKCASE AND THE INTAKE MANIFOLD OF AN INTERNAL COMBUSTION ENGINE, SAID FLOW REGULATOR COMPRISING A CASING, A FLEXIBLE DIAPHRAGM WITHIN THE CASING DIVIDING THE CASING INTO A FIRST CHAMBER AND A SECOND CHAMBER, A VENT HOLE IN THE CASING WALL ABOVE THE SECOND CHAMBER TO PROVIDE FOR ATMOSPHERIC LOADING OF THE DIAPHRAGM, A GAS INLET INTO SAID FIRST CHAMBER, SAID GAS INLET HAVING AN ENGINE CRANKCASE CONNECTOR, A GAS OUTLET FROM SAID FIRST CHAMBER, SAID GAS OUTLET HAVING AN ENGINE INTAKE MANIFOLD CONNECTOR, A VALVE NOZZLE INSIDE THE FIRST CHAMBER, ONE END OF SAID VALVE NOZZLE COMMUNICATING WITH THE GAS OUTLET, THE OTHER END OF SAID VALVE NOZZLE TERMINATING IN AN OPEN END ADJACENT THE FLEXIBLE DIAPHRAGM, THE OPEN
Claim 2
Dependent Claim
131 words
A FLOW REGULATOR FOR USE IN A CRANKCASE VENTILATING PASSAGE BETWEEN THE CRANKCASE AND THE INTAKE MANIFOLD OF AN INTERNAL COMBUSTION ENGINE, SAID FLOW REGULATOR COMPRISING A CASING, A FLEXIBLE DIAPHRAGM WITHIN THE CASING DIVIDING THE CASING INTO A FIRST CHAMBER AND A SECOND CHAMBER, A VENT HOLE IN THE CASING WALL ABOVE THE SECOND CHAMBER TO PROVIDE FOR ATMOSPHERIC LOADING OF THE DIAPHRAGM, A GAS INLET INTO SAID FIRST CHAMBER, SAID GAS INLET HAVING AN ENGINE CRANKCASE CONNECTOR, A GAS OUTLET FROM SAID FIRST CHAMBER, SAID GAS OUTLET HAVING AN ENGINE INTAKE MANIFOLD CONNECTOR, A VALVE NOZZLE INSIDE THE FIRST CHAMBER, ONE END OF SAID VALVE NOZZLE COMMUNICATING WITH THE GAS OUTLET, THE OTHER END OF SAID VALVE NOZZLE TERMINATING IN AN OPEN END ADJACENT THE FLEXIBLE DIAPHRAGM, THE OPEN
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |