Patent US3168690A successfully refreshed from Google Patents.
US3168690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clock power-device
Assignee: Leon Hatot SA France
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Filing: 1954-08-31
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Granted: 1965-02-02
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Expires: 1974-08-31
Abstract
No abstract record available.
Inventors
- 👤 Marius Jean Lavet
- 👤 Jacques Jean Gustave Dietsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:13
CPC Classifications
G; G04; G04B; G04B11/00; G04B11/02; G04B11/04; G04C; G04C15/00; G04C3/00; G04C3/02; G04C3/027; G04C3/0276; G04C3/0278; G04C3/04; G04C3/06; G04C3/064; G04C3/065; G04C3/066; G04C5/00; G04C5/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN ELECTROMAGNETIC IMPULSE POWER DEVICE OF THE TYPE INCLUDING AT LEAST ONE MOVABLE PERMANENT MAGNET, THE CONSTRUCTION COMPRISING AN ISOCHRONAL PENDULUM, A BIPOLAR BAR-LIKE MAGNET TRANSVERSELY CARRIED BY SAID ISOCHRONAL PENDULUM, AN ELECTRONIC AMPLIFIER OF THE TRANSISTOR TYPE HAVING INPUT AND OUTPUT TERMINALS, A SOURCE OF ELECTRIC POWER FEEDING SAID ELECTRONIC AMPLIFIER, A FIRST STATIONARY COIL SURROUNDING SAID BIPOLAR MAGNET AND CONNECTED TO THE INPUT TERMINALS OF SAID ELECTRONIC AMPLIFIER AND POSITIONED WITH RESPECT TO SAID BIPOLAR MAGNET TO SET UP INDUCED CONTROL CURRENTS UNDER THE ACTION OF THE MOVEMENT OF SAID PERMANENT MAGNET RELATIVE TO SAID FIRST COIL, AND A SECOND COIL SURROUNDING SAID PERMANENT BIPOLAR MAGNET AND ADAPTED TO IMPART SUCCESSIVE DRIVING IMPULSES TO SAID PERMANENT BIPOLAR MAGNET, SAID SECOND COIL BEING CONNECTED TO THE OUTPUT TERMINALS OF SAID ELECTRONIC AMPLIFIER.
Claim 2
Dependent Claim
133 words
IN ELECTROMAGNETIC IMPULSE POWER DEVICE OF THE TYPE INCLUDING AT LEAST ONE MOVABLE PERMANENT MAGNET, THE CONSTRUCTION COMPRISING AN ISOCHRONAL PENDULUM, A BIPOLAR BAR-LIKE MAGNET TRANSVERSELY CARRIED BY SAID ISOCHRONAL PENDULUM, AN ELECTRONIC AMPLIFIER OF THE TRANSISTOR TYPE HAVING INPUT AND OUTPUT TERMINALS, A SOURCE OF ELECTRIC POWER FEEDING SAID ELECTRONIC AMPLIFIER, A FIRST STATIONARY COIL SURROUNDING SAID BIPOLAR MAGNET AND CONNECTED TO THE INPUT TERMINALS OF SAID ELECTRONIC AMPLIFIER AND POSITIONED WITH RESPECT TO SAID BIPOLAR MAGNET TO SET UP INDUCED CONTROL CURRENTS UNDER THE ACTION OF THE MOVEMENT OF SAID PERMANENT MAGNET RELATIVE TO SAID FIRST COIL, AND A SECOND COIL SURROUNDING SAID PERMANENT BIPOLAR MAGNET AND ADAPTED TO IMPART SUCCESSIVE DRIVING IMPULSES TO SAID PERMANENT BIPOLAR MAGNET, SAID SECOND COIL BEING CONNECTED TO THE OUTPUT TERMINALS OF SAID ELECTRONIC AMPLIFIER.
References Cited (Backward Citations)
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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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |