US3572305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine ignition interrupting safety device for fuel tank covers
Assignee: Individual
•
Filing: 1970-05-04
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Granted: 1971-03-23
•
Expires: 1990-05-04
Abstract
Abstract AN EXPLOSION-PROOF MICROSWITCH IS MOUNTED IN THE FILLING PIPE LEADING TO A GASOLINE STORAGE TANK. A MECHANICAL PLUNGER EXTENDS AWAY FROM THE MICROSWITCH WHERE IT IS ADAPTED TO BE ENGAGED BY A TANK COVER WHICH IS REMOVABLY SECURED TO THE FILLER PIPE OPENING. WHEN THE GAS TANK COVER IS IN ITS FULLY CLOSED POSITION, THE PLUNGER OF THE MICROSWITCH IS DEPRESSED TO CLOSE AN ELECTRICAL CIRCUIT FORMING A PART OF THE IGNITION CIRCUIT OF AN INTERNAL COMBUSTION ENGINE. WHEN THE TANK COVER IS OFF OR INCOMPLETELY SECURED TO THE FILLER PIPE, THE MICROSWITCH CONTACTS ARE OPEN TO PREVENT OPERATION OF THE ENGINE.
Inventors
- 👤 Edward L Moragne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:44
CPC Classifications
F; F02; F02D; F02D17/00; F02D17/04; B; B60; B60K; B60K15/00; B60K15/03; B60K15/04; B60K15/0406; Y; Y10; Y10S; Y10S220/00; Y10S220/32
Claims Analysis
Total Claims: 0
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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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |