US3238384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two terminal triggering circuit comprising complementary transistors with one transistor having emitter operating as collector
Assignee: Johnson Controls International Inc
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Filing: 1963-07-31
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Granted: 1966-03-01
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Expires: 1983-07-31
Abstract
No abstract record available.
Inventors
- 👤 Dwight C Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:46
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AN AVALANCHE TRIGGERING CIRCUIT FOR SELECTIVELY SUPPLYING CURRENT TO A LOAD COMPRISING: FIRST AND SECOND TRANSISTORS OF OPPOSITE CONDUCTIVITY RESPECTIVELY, EACH HAVING AN EMITTER, BASE AND COLLECTOR ELECTRODE, FIRST CIRCUIT MEANS COUPLING THE EMITTER ELECTRODE OF SAID FIRST TRANSISTOR TO THE BASE ELECTRODE OF SAID SECOND TRANSISTOR, SECOND CIRCUIT MEANS COUPLING THE BASE ELECTRODE OF SAID FIRST TRANSISTOR TO THE COLLECTOR ELECTRODE OF SAID SECOND TRANSISTOR, SHUNTING MEANS INTERCONNECTING THE BASE AND EMITTER ELECTRODES OF SAID SECOND TRANSISTOR FOR VARYING THE CURRENT GAIN OF SAID SECOND TRANSISTOR,
Claim 2
Dependent Claim
87 words
AN AVALANCHE TRIGGERING CIRCUIT FOR SELECTIVELY SUPPLYING CURRENT TO A LOAD COMPRISING: FIRST AND SECOND TRANSISTORS OF OPPOSITE CONDUCTIVITY RESPECTIVELY, EACH HAVING AN EMITTER, BASE AND COLLECTOR ELECTRODE, FIRST CIRCUIT MEANS COUPLING THE EMITTER ELECTRODE OF SAID FIRST TRANSISTOR TO THE BASE ELECTRODE OF SAID SECOND TRANSISTOR, SECOND CIRCUIT MEANS COUPLING THE BASE ELECTRODE OF SAID FIRST TRANSISTOR TO THE COLLECTOR ELECTRODE OF SAID SECOND TRANSISTOR, SHUNTING MEANS INTERCONNECTING THE BASE AND EMITTER ELECTRODES OF SAID SECOND TRANSISTOR FOR VARYING THE CURRENT GAIN OF SAID SECOND TRANSISTOR,
References Cited (Backward Citations)
US3049642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |