US3184731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display apparatus having drum indicators, controlled by individual synchronous motors
Assignee: Bendix Corp
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Filing: 1961-09-01
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Granted: 1965-05-18
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Expires: 1981-09-01
Abstract
No abstract record available.
Inventors
- 👤 Brown Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:17
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/04; G06M1/06; G06M1/062; G06M1/068; G06M1/27; G06M1/276; G06M1/38; G06M1/385; H; H03; H03K; H03K21/00; H03K21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
FOR USE IN AN ELECTRICAL INDICATOR CONTROL SYSTEM, A DRUM INDICATOR COMPRISING A FRAME, A SERIES OF THREE COAXIAL ROTATABLE DRUMS BEARING INDICIA THEREON AND MOUNTED ON THE FRAME, AND DRUM ROTATING APPARATUS ARRANGED TO BRING SELECTED INDICIA INTO VIEWING POSITION, INCLUDING A SYNCHRO MOUNTED ON THE FRAME AT ONE END OF THE SERIES AND EXTENDING INTO ONE OF SAID DRUMS, SAID SYNCHRO HAVING A ROTOR ENGAGING ONE OF THE DRUMS, ANOTHER SYNCHRO MOUNTED ON THE FRAME AT THE OTHER END OF THE SERIES AND EXTENDING INTO ANOTHER OF SAID DRUMS, SAID OTHER SYNCHRO HAVING A ROTOR ENGAGING ANOTHER DRUMA THIRD SYNCHRO HAVING A ROTOR AND A DRIVE ELEMENT ENGAGING THE ROTOR OF THE THIRD SYNCHRO WITH THE THIRD DRUM, A WINDOW THROUGH WHICH THE INDICIA OF SAID DRUMS MAY BE VISIBLE, A SHUTTER MEMBER PIVOTALLY MOUNTED CONCENTRICALLY WITH SAID DRUMS AND NORMALLY POSITIONED RELATIVE TO SAID WINDOW SO AS TO COMPLETELY SHIELD SAID INDICIA FROM VEIW THROUGH SAID WINDOW, MOTOR MEANS CARRIED BY SAID FRAME, AND A SOURCE OF ELECTRICAL ENERGY TO EFFECTIVELY ENERGIZE SAID MOTOR MEANS UPON THE INDICATOR CONTROL SYSTEM BEING IN AN OPERATIVE CONDITION, SAID
Claim 2
Dependent Claim
189 words
FOR USE IN AN ELECTRICAL INDICATOR CONTROL SYSTEM, A DRUM INDICATOR COMPRISING A FRAME, A SERIES OF THREE COAXIAL ROTATABLE DRUMS BEARING INDICIA THEREON AND MOUNTED ON THE FRAME, AND DRUM ROTATING APPARATUS ARRANGED TO BRING SELECTED INDICIA INTO VIEWING POSITION, INCLUDING A SYNCHRO MOUNTED ON THE FRAME AT ONE END OF THE SERIES AND EXTENDING INTO ONE OF SAID DRUMS, SAID SYNCHRO HAVING A ROTOR ENGAGING ONE OF THE DRUMS, ANOTHER SYNCHRO MOUNTED ON THE FRAME AT THE OTHER END OF THE SERIES AND EXTENDING INTO ANOTHER OF SAID DRUMS, SAID OTHER SYNCHRO HAVING A ROTOR ENGAGING ANOTHER DRUMA THIRD SYNCHRO HAVING A ROTOR AND A DRIVE ELEMENT ENGAGING THE ROTOR OF THE THIRD SYNCHRO WITH THE THIRD DRUM, A WINDOW THROUGH WHICH THE INDICIA OF SAID DRUMS MAY BE VISIBLE, A SHUTTER MEMBER PIVOTALLY MOUNTED CONCENTRICALLY WITH SAID DRUMS AND NORMALLY POSITIONED RELATIVE TO SAID WINDOW SO AS TO COMPLETELY SHIELD SAID INDICIA FROM VEIW THROUGH SAID WINDOW, MOTOR MEANS CARRIED BY SAID FRAME, AND A SOURCE OF ELECTRICAL ENERGY TO EFFECTIVELY ENERGIZE SAID MOTOR MEANS UPON THE INDICATOR CONTROL SYSTEM BEING IN AN OPERATIVE CONDITION, SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |