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US3256449A
Expired / Lapsed
US
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Multivibrator type electronic switch
Assignee: Robert Bosch GmbH
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Filing: 1963-12-24
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Granted: 1966-06-14
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Expires: 1983-12-24
Abstract
No abstract record available.
Inventors
- 👤 Scholl Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:27
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K17/00; H03K17/08; H03K17/082; H03K17/0826; H03K3/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A MULTIVIBRATOR TYPE ELECTRONIC SWITCH, COMPRISING, IN COMBINATION, A SOURCE OF DIRECT CURRENT OPERATING VOLTAGE; INPUT MEANS FOR INTRODUCING A TRIGGER IMPULSE; AT LEAST ONE INPUT TRANSISTOR MEANS HAVING A BASE ELECTRODE, AN EMITTER ELECTRODE AND A COLLECTOR ELECTRODE, SAID BASE ELECTRODE BEING CONNECTED TO SAID INPUT MEANS; AT LEAST ONE OUTPUT TRANSISTOR MEANS HAVING A BASE ELECTRODE, AN EMITTER ELECTRODE AND A COLLECTOR ELECTRODE, SAID EMITTER ELECTRODES OF BOTH SAID TRANSISTOR MEANS BEING CONNECTED TO ONE TERMINAL OF SAID SOURCE, SAID COLLECTOR ELECTRODE OF SAID INPUT TRANSISTOR MEANS BEING CONNECTED TO THE OTHER TERMINAL OF SAID SOURCE, AND A SERIES-COMBINATION OF A LOW-RESISTANCE RESISTOR AND A HIGHLY RESISTIVE LOAD RESISTANCE MEANS BEING CONNECTED BETWEEN SAID COLLECTOR ELECTRODE OF SAID INPUT TRANSISTOR MEANS AND SAID OTHER TERMINAL OF SAID SOURCE, SAID COLLECTOR ELECTRODE OF SAID INPUT TRANSISTOR MEANS BEING ADDITIONALLY CONNECTED TO SAID BASE ELECTRODE OF SAID OUTPUT TRANSISTOR MEANS; AND VOLTAGE DIVIDER MEANS CONNECTED IN PARALLEL WITH THE EMITTER-COLLECTOR CIRCUIT OF SAID OUTPUT TRANSISTOR MEANS AND WITH SAID LOW-RESISTANCE RESISTOR AND HAVING AN INTERMEDIATE TAPPING POINT CONNECTED TO SAID BASE OF SAID INPUT TRANSISTOR MEANS.
Claim 2
Dependent Claim
186 words
A MULTIVIBRATOR TYPE ELECTRONIC SWITCH, COMPRISING, IN COMBINATION, A SOURCE OF DIRECT CURRENT OPERATING VOLTAGE; INPUT MEANS FOR INTRODUCING A TRIGGER IMPULSE; AT LEAST ONE INPUT TRANSISTOR MEANS HAVING A BASE ELECTRODE, AN EMITTER ELECTRODE AND A COLLECTOR ELECTRODE, SAID BASE ELECTRODE BEING CONNECTED TO SAID INPUT MEANS; AT LEAST ONE OUTPUT TRANSISTOR MEANS HAVING A BASE ELECTRODE, AN EMITTER ELECTRODE AND A COLLECTOR ELECTRODE, SAID EMITTER ELECTRODES OF BOTH SAID TRANSISTOR MEANS BEING CONNECTED TO ONE TERMINAL OF SAID SOURCE, SAID COLLECTOR ELECTRODE OF SAID INPUT TRANSISTOR MEANS BEING CONNECTED TO THE OTHER TERMINAL OF SAID SOURCE, AND A SERIES-COMBINATION OF A LOW-RESISTANCE RESISTOR AND A HIGHLY RESISTIVE LOAD RESISTANCE MEANS BEING CONNECTED BETWEEN SAID COLLECTOR ELECTRODE OF SAID INPUT TRANSISTOR MEANS AND SAID OTHER TERMINAL OF SAID SOURCE, SAID COLLECTOR ELECTRODE OF SAID INPUT TRANSISTOR MEANS BEING ADDITIONALLY CONNECTED TO SAID BASE ELECTRODE OF SAID OUTPUT TRANSISTOR MEANS; AND VOLTAGE DIVIDER MEANS CONNECTED IN PARALLEL WITH THE EMITTER-COLLECTOR CIRCUIT OF SAID OUTPUT TRANSISTOR MEANS AND WITH SAID LOW-RESISTANCE RESISTOR AND HAVING AN INTERMEDIATE TAPPING POINT CONNECTED TO SAID BASE OF SAID INPUT TRANSISTOR MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |