Patent US3385468A successfully refreshed from Google Patents.
US3385468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety vent for vehicle gasoline tank
Assignee: FLEMING METAL FABRICATORS
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Filing: 1966-12-02
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Granted: 1968-05-28
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Expires: 1986-12-02
Abstract
No abstract record available.
Inventors
- 👤 Robert I Fleming
- 👤 Howard M Froby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:37
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/0406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A VEHICLE GASOLINE TANK ASSEMBLY, THE COMBINATION OF: A TANK, A MEMBER SECURED TO THE UPPER PORTION OF THE TANK AND COMMUNICATING WITH THE INTERIOR THEREOF, MEANS ON SAID MEMBER PROVIDING A VENT PASSAGE FROM THE TANK, SAID MEANS INCLUDING A DOWNWARD FACING SEAT AND A BALL ADAPTED TO CONTACT THE SEAT TO CLOSE THE VENT PASSAGE IN THE EVENT OF OVERTURN OF THE TANK, A FLEXIBLE COIL SPRING SECURED AT ITS UPPER END RELATIVE TO SAID SEAT AND EXTENDING INTO THE INTERIOR OF THE TANK, THE BALL BEING POSITIONED AND GUIDED FOR MOVEMENT WITHIN THE COILS OF THE SPRING, AND MEANS AT THE LOWER END OF THE SPRING FOR RETAINING THE BALL WITHIN THE SPRING, WHEREBY MOTION OF THE VEHICLE AND TANK CAUSES SWINGING MOVEMENT OF THE LOWER END OF THE SPRING TO PREVENT LIFTING OF THE BALL INTO CONTACT WITH THE SEAT BY MOTION OF THE VEHICLE AND TANK.
Claim 2
Dependent Claim
152 words
IN A VEHICLE GASOLINE TANK ASSEMBLY, THE COMBINATION OF: A TANK, A MEMBER SECURED TO THE UPPER PORTION OF THE TANK AND COMMUNICATING WITH THE INTERIOR THEREOF, MEANS ON SAID MEMBER PROVIDING A VENT PASSAGE FROM THE TANK, SAID MEANS INCLUDING A DOWNWARD FACING SEAT AND A BALL ADAPTED TO CONTACT THE SEAT TO CLOSE THE VENT PASSAGE IN THE EVENT OF OVERTURN OF THE TANK, A FLEXIBLE COIL SPRING SECURED AT ITS UPPER END RELATIVE TO SAID SEAT AND EXTENDING INTO THE INTERIOR OF THE TANK, THE BALL BEING POSITIONED AND GUIDED FOR MOVEMENT WITHIN THE COILS OF THE SPRING, AND MEANS AT THE LOWER END OF THE SPRING FOR RETAINING THE BALL WITHIN THE SPRING, WHEREBY MOTION OF THE VEHICLE AND TANK CAUSES SWINGING MOVEMENT OF THE LOWER END OF THE SPRING TO PREVENT LIFTING OF THE BALL INTO CONTACT WITH THE SEAT BY MOTION OF THE VEHICLE AND TANK.
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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |