US3407306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cranking motor solenoid lockout circuit
Assignee: Motors Liquidation Co
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Filing: 1966-04-21
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Granted: 1968-10-22
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Expires: 1986-04-21
Abstract
No abstract record available.
Inventors
- 👤 Gerald O Huntzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:31
CPC Classifications
F; F02; F02N; F02N11/00; F02N11/10; F02N11/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A CRANKING MOTOR SOLENOID LOCKOUT CIRCUIT COMPRISING IN COMBINATION WITH A CRANKING MOTOR SOLENOID OPERATED SWITCH HAVING A PULL-IN COIL, A HOLD-IN COIL AND TWO NORMALLY OPEN CONTACTS, A FIRST SWITCHING DEVICE, A SECOND SWITCHING DEVICE, ELECTRICALLY CIRCUIT MEANS INCLUDING SAID FIRST AND SECOND SWITCHING DEVICES FOR ESTABLISHING AN ENERGIZING CIRCUIT FOR SAID PULL-IN AND HOLD-IN COILS AND A THIRD SWITCHING DEVICE RESPONSIVE TO THE CLOSING OF SAID SOLENOID CONTACTS FOR CONDITIONING SAID SECOND SWITCHING DEVICE TO OPERATE TO INTERRUPT SAID ELECTRICAL CIRCUIT MEANS UPON THE OPENING OF SAID SOLENOID CONTACTS AFTER THE INITIAL CLOSURE WHILE SAID FIRST SWITCH MEANS IS IN THE CLOSED POSITION.
Claim 2
Dependent Claim
105 words
A CRANKING MOTOR SOLENOID LOCKOUT CIRCUIT COMPRISING IN COMBINATION WITH A CRANKING MOTOR SOLENOID OPERATED SWITCH HAVING A PULL-IN COIL, A HOLD-IN COIL AND TWO NORMALLY OPEN CONTACTS, A FIRST SWITCHING DEVICE, A SECOND SWITCHING DEVICE, ELECTRICALLY CIRCUIT MEANS INCLUDING SAID FIRST AND SECOND SWITCHING DEVICES FOR ESTABLISHING AN ENERGIZING CIRCUIT FOR SAID PULL-IN AND HOLD-IN COILS AND A THIRD SWITCHING DEVICE RESPONSIVE TO THE CLOSING OF SAID SOLENOID CONTACTS FOR CONDITIONING SAID SECOND SWITCHING DEVICE TO OPERATE TO INTERRUPT SAID ELECTRICAL CIRCUIT MEANS UPON THE OPENING OF SAID SOLENOID CONTACTS AFTER THE INITIAL CLOSURE WHILE SAID FIRST SWITCH MEANS IS IN THE CLOSED POSITION.
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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |