US3354898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crankcase ventilating valve having rotatable metering plunger
Assignee: Stanadyne LLC
•
Filing: 1966-05-02
•
Granted: 1967-11-28
•
Expires: 1986-05-02
Abstract
No abstract record available.
Inventors
- 👤 William I Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:35
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/023; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; Y; Y10; Y10T; Y10T137/00; Y10T137/6198; Y10T137/6253; Y10T137/7722; Y10T137/7748; Y10T137/7749; Y10T137/7837; Y10T137/7869; Y10T137/7904; Y10T137/7905; Y10T137/7922; Y10T137/7929; Y10T137/7931; Y10T137/7936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A FLOW METERING VALVE ADAPTED FOR USE IN AN AUTOMOTIVE CRANKCASE VENTILATING SYSTEM COMPRISING A GENERALLY ELONGATED VALVE HOUSING HAVING AN INLET END AND AN OUTLET END, SAID HOUSING HAVING A BORE PROVIDED WITH A RESTRICTED PORTION INTERMEDIATE ITS ENDS CONSTITUTING A METERING ORIFICE, A GENERALLY ELONGATED METERING PLUNGER IN THE BORE OF SAID HOUSING, ONE END PORTION OF SAID PLUNGER EXTENDING INTO SAID ORIFICE, A SEALING MEMBER DISPOSED ADJACENT THE INLET END OF SAID HOUSINGM SAID PLUNGER AND SAID SEALING MEMBER BEING MAGNETICALLY ATTRACTED TO PREVENT FLOW THROUGH SAID VALVE UNTIL A PREDETERMINED FLOW PRESSURE IS ATTAINED, AND SUPPORT MEANS MOVABLY MOUNTED IN SAID HOUSING, ENGAGING SAID RESTRICTED PORTION OF SAID HOUSING, AND YIELDABLY SUPPORTING SAID PLUNGER AFTER SAID PREDETERMINED FLOW PRESSURE HAS BEEN ATTAINED TO PERMIT AXIAL MOVEMENT OF SAID PLUNGER RELATIVE TO SAID ORIFICE IN RESPONSE TO CHANGES IN PRESSURE IN SAID VALVE HOUSING, SAID SUPPORT MEANS LOOSELY ENGAGING SAID PLUNGER TO PERMIT RELATIVE MOVEMENT BETWEEN SAID SUPPORT MEANS AND SAID PLUNGER.
Claim 2
Dependent Claim
165 words
A FLOW METERING VALVE ADAPTED FOR USE IN AN AUTOMOTIVE CRANKCASE VENTILATING SYSTEM COMPRISING A GENERALLY ELONGATED VALVE HOUSING HAVING AN INLET END AND AN OUTLET END, SAID HOUSING HAVING A BORE PROVIDED WITH A RESTRICTED PORTION INTERMEDIATE ITS ENDS CONSTITUTING A METERING ORIFICE, A GENERALLY ELONGATED METERING PLUNGER IN THE BORE OF SAID HOUSING, ONE END PORTION OF SAID PLUNGER EXTENDING INTO SAID ORIFICE, A SEALING MEMBER DISPOSED ADJACENT THE INLET END OF SAID HOUSINGM SAID PLUNGER AND SAID SEALING MEMBER BEING MAGNETICALLY ATTRACTED TO PREVENT FLOW THROUGH SAID VALVE UNTIL A PREDETERMINED FLOW PRESSURE IS ATTAINED, AND SUPPORT MEANS MOVABLY MOUNTED IN SAID HOUSING, ENGAGING SAID RESTRICTED PORTION OF SAID HOUSING, AND YIELDABLY SUPPORTING SAID PLUNGER AFTER SAID PREDETERMINED FLOW PRESSURE HAS BEEN ATTAINED TO PERMIT AXIAL MOVEMENT OF SAID PLUNGER RELATIVE TO SAID ORIFICE IN RESPONSE TO CHANGES IN PRESSURE IN SAID VALVE HOUSING, SAID SUPPORT MEANS LOOSELY ENGAGING SAID PLUNGER TO PERMIT RELATIVE MOVEMENT BETWEEN SAID SUPPORT MEANS AND SAID PLUNGER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |