Patent US3700732A successfully refreshed from Google Patents.
Patent US3383671A successfully refreshed from Google Patents.
US3383671A
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US
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Switching system indicating apparatus
Assignee: Transelektro Magyar Villamossagi Kulkereskedelmi
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Filing: 1964-09-30
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Granted: 1968-05-14
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Expires: 1984-09-30
Abstract
No abstract record available.
Inventors
- 👤 Palos Ferenc
- 👤 Elsner Janos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:04
CPC Classifications
G; G08; G08B; G08B25/00; G08B25/14; H; H01; H01H; H01H9/00; H01H9/16; H01H9/167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
AN INDICATING APPARATUS FOR INDICATING THE POSITION OF A TWO-POSITION DEVICE REMOTE FROM THE APPARATUS, SAID APPARATUS COMPRISING AN ELECTRIC CIRCUIT HAVING A PAIR OF PARALLEL BRANCHES, EACH BRANCH EXTENDING FROM THE APPARATUS TO SAID DEVICE AND EACH HAVING A HIGH IMPEDANCE THEREIN AT THE APPARATUS END, A SWITCH BLADE IN EACH BRANCH AT THE DEVICE END THEREOF, SAID SWITCH BLADES BEING CONNECTED TO MOVE TOGETHER AND SO THAT WHEN ONE CLOSES THE OTHER OPENS AND VICE VERSA AND BEING ADAPTED FOR ACTUATION BY SAID DEVICE SO THAT IN ONE POSITION OF SAID DEVICE ONE OF SAID SWITCH BLADES IS CLOSED WHILE IN THE OTHER POSITION OF SAID DEVICE THE OTHER OF SAID SWITCH BLADES IS CLOSED, AS GAS DISCHARGE TUBE AT THE APPARATUS END OF SAID BRANCHES HAVING TWO ELECTRODES, ONE ELECTRODE BEING CONNECTED TO EACH BRANCH BETWEEN THE IMPEDANCE AND SWITCH BLADE THEREOF, THE RESPECTIVE ENDS OF SAID BRANCHES BEING CONNECTED TOGETHER, AND A SOURCE OF DIRECT CURRENT SUPPLY AT A VOLTAGE SUFFICIENT TO FIRE SAID TUBE AND HAVING ITS OPPOSITE SIDES CONNECTED TO THE RESPECTIVE INTERCONNECTED ENDS OF SAID BRANCHES, WHEREBY ONE OR THE OTHER ELECTRODE OF SAID TUBE WILL GLOW DEPENDING ON WHICH ONE OF SAID SWITCH BLADES IS CLOSED AND THE TUBE THUS SERVING AS AN INDICATOR TO INDICATE THE RESPECTIVE POSITION OF SAID DEVICE.
Claim 2
Dependent Claim
220 words
AN INDICATING APPARATUS FOR INDICATING THE POSITION OF A TWO-POSITION DEVICE REMOTE FROM THE APPARATUS, SAID APPARATUS COMPRISING AN ELECTRIC CIRCUIT HAVING A PAIR OF PARALLEL BRANCHES, EACH BRANCH EXTENDING FROM THE APPARATUS TO SAID DEVICE AND EACH HAVING A HIGH IMPEDANCE THEREIN AT THE APPARATUS END, A SWITCH BLADE IN EACH BRANCH AT THE DEVICE END THEREOF, SAID SWITCH BLADES BEING CONNECTED TO MOVE TOGETHER AND SO THAT WHEN ONE CLOSES THE OTHER OPENS AND VICE VERSA AND BEING ADAPTED FOR ACTUATION BY SAID DEVICE SO THAT IN ONE POSITION OF SAID DEVICE ONE OF SAID SWITCH BLADES IS CLOSED WHILE IN THE OTHER POSITION OF SAID DEVICE THE OTHER OF SAID SWITCH BLADES IS CLOSED, AS GAS DISCHARGE TUBE AT THE APPARATUS END OF SAID BRANCHES HAVING TWO ELECTRODES, ONE ELECTRODE BEING CONNECTED TO EACH BRANCH BETWEEN THE IMPEDANCE AND SWITCH BLADE THEREOF, THE RESPECTIVE ENDS OF SAID BRANCHES BEING CONNECTED TOGETHER, AND A SOURCE OF DIRECT CURRENT SUPPLY AT A VOLTAGE SUFFICIENT TO FIRE SAID TUBE AND HAVING ITS OPPOSITE SIDES CONNECTED TO THE RESPECTIVE INTERCONNECTED ENDS OF SAID BRANCHES, WHEREBY ONE OR THE OTHER ELECTRODE OF SAID TUBE WILL GLOW DEPENDING ON WHICH ONE OF SAID SWITCH BLADES IS CLOSED AND THE TUBE THUS SERVING AS AN INDICATOR TO INDICATE THE RESPECTIVE POSITION OF SAID DEVICE.
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |