Patent US3207994A successfully refreshed from Google Patents.
US3207994A
Expired / Lapsed
US
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Trigger-charging current interlock for pulse modulator
Assignee: Ling Temco Vought Inc
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Filing: 1963-03-11
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Granted: 1965-09-21
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Theodore Charles
- 👤 Eugene T Perusse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:31
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN AN ELECTRICAL MODULATOR HAVING A LOAD, CHARGEABLE MEANS CONNECTED TO SAID LOAD, A POWER SUPPLY TO CHARGE SAID CHARGEABLE MEANS CONNECTED THERETO, AND SWITCH MEANS HAVING A TRIGGER, SAID SWITCH MEANS CONNECTED TO DISCHARGE SAID CHARGEABLE MEANS, MEANS TO INHIBIT OPERATION OF SAID TRIGGER WHEN SAID CHARGE IS FLOWING INTO SAID CHARGEABLE MEANS COMPRISING MEANS TO PROVIDE A VOLTAGE WHEN SAID CHARGE IS FLOWING, SAID MEANS-TO-PROVIDE-A-VOLTAGE CONNECTED TO SAID POWER SUPPLY AND TO SAID LOAD AND SAID CHARGEABLE MEANS, AN ELEMENT HAVING IMPEDANCE AND MEANS TO CONTROL ITS IMPEDANCE BETWEEN TWO VALUES, SAID ELEMENT CONNECTED BETWEEN SAID MEANS-TO-PROVIDE-A VOLTAGE AND THE TRIGGER OF SAID SWTICH MEANS TO RENDER SAID TRIGGER INOPERATIVE WHEN SAID ELEMENT IS AT ITS LOW IMPEDANCE VALUE, AND MEANS TO CONNECT SAID MEANS-TO-CONTROL SAID ELEMENT ACROSS SAID MEANS-TO-PROVIDE-A-VOLTAGE WHEREBY SAID MEANS-TO-CONTROL REDUCE THE IMPEDANCE OF SAID ELEMENT TO THE LOW VALUE WHEN A VOLTAGE IS PROVIDED BY SAID MEANS-TO-PROVIDE-A-VOLTAGE.
Claim 2
Dependent Claim
153 words
IN AN ELECTRICAL MODULATOR HAVING A LOAD, CHARGEABLE MEANS CONNECTED TO SAID LOAD, A POWER SUPPLY TO CHARGE SAID CHARGEABLE MEANS CONNECTED THERETO, AND SWITCH MEANS HAVING A TRIGGER, SAID SWITCH MEANS CONNECTED TO DISCHARGE SAID CHARGEABLE MEANS, MEANS TO INHIBIT OPERATION OF SAID TRIGGER WHEN SAID CHARGE IS FLOWING INTO SAID CHARGEABLE MEANS COMPRISING MEANS TO PROVIDE A VOLTAGE WHEN SAID CHARGE IS FLOWING, SAID MEANS-TO-PROVIDE-A-VOLTAGE CONNECTED TO SAID POWER SUPPLY AND TO SAID LOAD AND SAID CHARGEABLE MEANS, AN ELEMENT HAVING IMPEDANCE AND MEANS TO CONTROL ITS IMPEDANCE BETWEEN TWO VALUES, SAID ELEMENT CONNECTED BETWEEN SAID MEANS-TO-PROVIDE-A VOLTAGE AND THE TRIGGER OF SAID SWTICH MEANS TO RENDER SAID TRIGGER INOPERATIVE WHEN SAID ELEMENT IS AT ITS LOW IMPEDANCE VALUE, AND MEANS TO CONNECT SAID MEANS-TO-CONTROL SAID ELEMENT ACROSS SAID MEANS-TO-PROVIDE-A-VOLTAGE WHEREBY SAID MEANS-TO-CONTROL REDUCE THE IMPEDANCE OF SAID ELEMENT TO THE LOW VALUE WHEN A VOLTAGE IS PROVIDED BY SAID MEANS-TO-PROVIDE-A-VOLTAGE.
References Cited (Backward Citations)
US2514413A
Cited
US2830178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |