US3131386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple circuit signal level monitor
Assignee: Collins Radio Co
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Filing: 1959-12-04
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Granted: 1964-04-28
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Expires: 1979-12-04
Abstract
No abstract record available.
Inventors
- 👤 Donald D Spencer
- 👤 Ardis G Vance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:35
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
APPARATUS FOR DISABLING AN INDICATOR COMPRISING A WARNING FLAG PIVOTALLY MOUNTED ON SAID INDICATOR AND SPRING BIASED SO AS TO BE VISIBLE ON THE FACE OF THE INDICATOR, A RELAY CONNECTED TO THE FLAG TO MOVE SAID FLAG TO A POSITION WHERE IT IS NOT VISIBLE WHEN THE RELAY IS ENERGIZED, A VOLTAGE SOURCE CONNECTED TO SAID RELAY, A NORMALLY CLOSED SWITCH CONNECTED IN CIRCUIT WITH SAID VOLTAGE SOURCE AND SAID FIRST RELAY, A SWITCH ACTUATOR ENGAGEABLE WITH SAID SWITCH TO OPEN IT, A DRIVING MEANS, A CLUTCH CONNECTING SAID DRIVING MEANS AND SAID SWITCH ACTUATOR, AND A CIRCUIT FOR ENERGIZING SAID CLUTCH IN RESPONSE TO CONDITION THAT RENDER THE INDICATOR PRESENTATION INCORRECT.
Claim 2
Dependent Claim
113 words
APPARATUS FOR DISABLING AN INDICATOR COMPRISING A WARNING FLAG PIVOTALLY MOUNTED ON SAID INDICATOR AND SPRING BIASED SO AS TO BE VISIBLE ON THE FACE OF THE INDICATOR, A RELAY CONNECTED TO THE FLAG TO MOVE SAID FLAG TO A POSITION WHERE IT IS NOT VISIBLE WHEN THE RELAY IS ENERGIZED, A VOLTAGE SOURCE CONNECTED TO SAID RELAY, A NORMALLY CLOSED SWITCH CONNECTED IN CIRCUIT WITH SAID VOLTAGE SOURCE AND SAID FIRST RELAY, A SWITCH ACTUATOR ENGAGEABLE WITH SAID SWITCH TO OPEN IT, A DRIVING MEANS, A CLUTCH CONNECTING SAID DRIVING MEANS AND SAID SWITCH ACTUATOR, AND A CIRCUIT FOR ENERGIZING SAID CLUTCH IN RESPONSE TO CONDITION THAT RENDER THE INDICATOR PRESENTATION INCORRECT.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |