Patent US3268742A successfully refreshed from Google Patents.
US3268742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic switch, having one control input, providing bidirectional current control
Assignee: Honeywell Inc
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Filing: 1964-09-11
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Granted: 1966-08-23
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Expires: 1984-09-11
Abstract
No abstract record available.
Inventors
- 👤 Balthasar H Pinckaers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:34
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/725
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A BIDIRECTIONAL SWITCH COMPRISING: A PAIR OF CONTROLLED, UNIDIRECTIONAL CURRENT CARRYING DEVICES CONNECTED IN PARALLEL-INVERSE RELATION; FIRST AND SECOND TERMINALS ADAPTED TO BE CONNECTED TO A SOURCE OF BIDIRECTIONAL ENERGY; A LOAD; MEANS CONNECTING SAID LOAD AND SAID PAIR OF PARALLELINVERSE CONNECTED CURRENT CARRYING DEVICES SERIALLY BETWEEN SAID FIRST AND SECOND TERMINALS; A CONTROL TERMINAL; CONTROL ENERGY MEANS CONNECTED INTERMEDIATE SAID FIRST TERMINAL AND SAID CONTROL TERMINAL; MEANS CONNECTING SAID CONTROL TERMINAL TO A CONTROL ELECTRODE ON ONE OF SAID PAIR OF CURRENT CARRYING DEVICES; AND FURTHER MEANS CONNECTING SAID CONTROL TERMINAL TO A CONTROL ELECTRODE ON THE OTHER OF SAID PAIR OF CURRENT CARRYING DEVICES, SAID FURTHER MEANS INCLUDING A TRANSISTOR HAVING A BASE ELECTRODE CONNECTED TO SAID FIRST TERMINAL.
Claim 2
Dependent Claim
121 words
A BIDIRECTIONAL SWITCH COMPRISING: A PAIR OF CONTROLLED, UNIDIRECTIONAL CURRENT CARRYING DEVICES CONNECTED IN PARALLEL-INVERSE RELATION; FIRST AND SECOND TERMINALS ADAPTED TO BE CONNECTED TO A SOURCE OF BIDIRECTIONAL ENERGY; A LOAD; MEANS CONNECTING SAID LOAD AND SAID PAIR OF PARALLELINVERSE CONNECTED CURRENT CARRYING DEVICES SERIALLY BETWEEN SAID FIRST AND SECOND TERMINALS; A CONTROL TERMINAL; CONTROL ENERGY MEANS CONNECTED INTERMEDIATE SAID FIRST TERMINAL AND SAID CONTROL TERMINAL; MEANS CONNECTING SAID CONTROL TERMINAL TO A CONTROL ELECTRODE ON ONE OF SAID PAIR OF CURRENT CARRYING DEVICES; AND FURTHER MEANS CONNECTING SAID CONTROL TERMINAL TO A CONTROL ELECTRODE ON THE OTHER OF SAID PAIR OF CURRENT CARRYING DEVICES, SAID FURTHER MEANS INCLUDING A TRANSISTOR HAVING A BASE ELECTRODE CONNECTED TO SAID FIRST TERMINAL.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |