US3402304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical data processing apparatus
Assignee: Honeywell Inc
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Filing: 1965-04-23
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Granted: 1968-09-17
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Expires: 1985-04-23
Abstract
No abstract record available.
Inventors
- 👤 Nelson W Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:29
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/602; H03K17/601
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A COMMUNICATION LINE SOLID STATE RELAY FOR SWITCHING A COMMUNICATION LINE IN REPSONSE TO MARK AND SPACE SIGNALS COMPRISING: (A) A CONTINUOUSLY RUNNING OSCILLATOR, (B) A PAIR OF TRANSFORMERS, (C) AN OUTPUT CIRCUIT INCLUDING TRANSISTOR SWITCH MEANS FOR SWITCHING SAID COMMUNICATION LINE, (D) OPPOSITE POLARITY FULL WAVE RECTIFIER CIRCUITS RESPECTIVELY CONNECTED TO THE SECONDARY WINDINGS OF SAID TRANSFORMERS, THE UNFILTERED OUTPUTS OF SAID RECTIFIER CIRCUITS BEING CONNECTED TO A COMMON CONTROL POINT FOR SWITCHING SAID TRANSISTOR SWITCH MEANS IN ACCORDANCE WITH THE POLARITY OF SAID CONTROL POINT, (E) TWO STATE SWITCHING MEANS CONNECTED TO COUPLE THE OSCILLATIONS OF SAID OSCILLATOR EXCLUSIVELY TO ONE OR THE OTHER OF THE PRIMARIES OF SAID TRANSFORMERS IN ACCORDANCE WITH A CONTROL SIGNAL, AND (F) MEANS FOR GENERATING A BINARY CONTROL SIGNAL FOR SAID TWO STATE SWITCHING MEANS IN ACCORDANCE WITH SAID MARK AND SPACE SIGNALS.
Claim 2
Dependent Claim
141 words
A COMMUNICATION LINE SOLID STATE RELAY FOR SWITCHING A COMMUNICATION LINE IN REPSONSE TO MARK AND SPACE SIGNALS COMPRISING: (A) A CONTINUOUSLY RUNNING OSCILLATOR, (B) A PAIR OF TRANSFORMERS, (C) AN OUTPUT CIRCUIT INCLUDING TRANSISTOR SWITCH MEANS FOR SWITCHING SAID COMMUNICATION LINE, (D) OPPOSITE POLARITY FULL WAVE RECTIFIER CIRCUITS RESPECTIVELY CONNECTED TO THE SECONDARY WINDINGS OF SAID TRANSFORMERS, THE UNFILTERED OUTPUTS OF SAID RECTIFIER CIRCUITS BEING CONNECTED TO A COMMON CONTROL POINT FOR SWITCHING SAID TRANSISTOR SWITCH MEANS IN ACCORDANCE WITH THE POLARITY OF SAID CONTROL POINT, (E) TWO STATE SWITCHING MEANS CONNECTED TO COUPLE THE OSCILLATIONS OF SAID OSCILLATOR EXCLUSIVELY TO ONE OR THE OTHER OF THE PRIMARIES OF SAID TRANSFORMERS IN ACCORDANCE WITH A CONTROL SIGNAL, AND (F) MEANS FOR GENERATING A BINARY CONTROL SIGNAL FOR SAID TWO STATE SWITCHING MEANS IN ACCORDANCE WITH SAID MARK AND SPACE SIGNALS.
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) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |