Patent US4253034A successfully refreshed from Google Patents.
Patent US3114053A successfully refreshed from Google Patents.
US3114053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching system for current-switching transistor multivibrator
Assignee: Lanteris Space LLC
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Filing: 1960-07-05
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Granted: 1963-12-10
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Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 John L Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:42
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/01; H03K3/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
233 words
IN A CURRENT-SWITCHING TRANSISTOR MULTIVIBRATOR COMPRISING FIRST AND SECOND TRANSISTORS EACH HAVING AN EMITTER, A COLLECTOR AND A BASE, A CONSTANT-CURRENT SOURCE EXHIBITING A GIVEN RESISTANCE BETWEEN ITS TWO TERMINALS AND HAVING ONE OF SAID TERMINALS CONNECTED TO A POINT AT REFERENCE POTENTIAL AND THE OTHER OF SAID TERMINALS CONNECTED TO SAID EMITTERS OF BOTH OF SAID TRANSISTORS, AND MEANS FOR MAINTAINING ONE OF SAID TRANSISTORS SUBSTANTIALLY NON-CONDUCTIVE WHILE THE CURRENT FROM SAID CONSTANT-CURRENT SOURCE FLOWS INTO SAID EMITTER OF THE OTHER OF SAID TRANSISTOR; A SWITCHING SYSTEM ACTUATABLE TO TRANSFER THE FLOW OF SAID CURRENT FROM SAID EMITTER OF SAID OTHER TRANSISTOR TO SAID EMITTER OF SAID ONE TRANSISTOR, SAID SYSTEM COMPRISING FIRST, SECOND AND THIRD SWITCHING MEANS EACH HAVING TWO TERMINALS AND EACH CONTROLLABLE TO ESTABLISH BETWEEN SAID TERMINALS AN ELECTRICALLY CONDUCTIVE PATH, MEANS CONNECTING ONE OF SAID TERMINALS OF SAID FIRST SWITCHING MEANS TO SAID EMITTERS OF BOTH OF SAID TRANSISTORS, SAID CONNECTING MEANS HAVING A RESISTANCE SMALLER THAN SAID GIVEN RESISTANCE OF SAID CONSTANTCURRENT SOURCE, MEANS CONNECTING THE OTHER OF SAID TERMINALS OF SAID FIRST SWITCHING MEANS TO ONE OF SAID TERMINALS OF EACH OF SAID SECOND AND THIRD SWITCHING MEANS, MEANS CONNECTING THE OTHER OF SAID TERMINALS OF SAID SECOND SWITCHING MEANS TO COLLECTOR OF SAID ONE TRANSISTOR, AND MEANS CONNECTING THE OTHER OF SAID TERMINALS OF SAID THIRD SWITCHING MEANS TO SAID COLLECTOR OF SAID OTHER TRANSISTOR.
Claim 2
Dependent Claim
233 words
IN A CURRENT-SWITCHING TRANSISTOR MULTIVIBRATOR COMPRISING FIRST AND SECOND TRANSISTORS EACH HAVING AN EMITTER, A COLLECTOR AND A BASE, A CONSTANT-CURRENT SOURCE EXHIBITING A GIVEN RESISTANCE BETWEEN ITS TWO TERMINALS AND HAVING ONE OF SAID TERMINALS CONNECTED TO A POINT AT REFERENCE POTENTIAL AND THE OTHER OF SAID TERMINALS CONNECTED TO SAID EMITTERS OF BOTH OF SAID TRANSISTORS, AND MEANS FOR MAINTAINING ONE OF SAID TRANSISTORS SUBSTANTIALLY NON-CONDUCTIVE WHILE THE CURRENT FROM SAID CONSTANT-CURRENT SOURCE FLOWS INTO SAID EMITTER OF THE OTHER OF SAID TRANSISTOR; A SWITCHING SYSTEM ACTUATABLE TO TRANSFER THE FLOW OF SAID CURRENT FROM SAID EMITTER OF SAID OTHER TRANSISTOR TO SAID EMITTER OF SAID ONE TRANSISTOR, SAID SYSTEM COMPRISING FIRST, SECOND AND THIRD SWITCHING MEANS EACH HAVING TWO TERMINALS AND EACH CONTROLLABLE TO ESTABLISH BETWEEN SAID TERMINALS AN ELECTRICALLY CONDUCTIVE PATH, MEANS CONNECTING ONE OF SAID TERMINALS OF SAID FIRST SWITCHING MEANS TO SAID EMITTERS OF BOTH OF SAID TRANSISTORS, SAID CONNECTING MEANS HAVING A RESISTANCE SMALLER THAN SAID GIVEN RESISTANCE OF SAID CONSTANTCURRENT SOURCE, MEANS CONNECTING THE OTHER OF SAID TERMINALS OF SAID FIRST SWITCHING MEANS TO ONE OF SAID TERMINALS OF EACH OF SAID SECOND AND THIRD SWITCHING MEANS, MEANS CONNECTING THE OTHER OF SAID TERMINALS OF SAID SECOND SWITCHING MEANS TO COLLECTOR OF SAID ONE TRANSISTOR, AND MEANS CONNECTING THE OTHER OF SAID TERMINALS OF SAID THIRD SWITCHING MEANS TO SAID COLLECTOR OF SAID OTHER TRANSISTOR.
References Cited (Backward Citations)
US2831127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |