US3361875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for generating a telegraph signal
Assignee: Computing Devices of Canada Ltd
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Filing: 1964-07-10
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Granted: 1968-01-02
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Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Stephen S Banfalvi
- 👤 Hargreaves Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:52
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/02; H04L12/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
315 words
APPARATUS FOR GENERATING A TELEGRAPH CODE SIGNAL REPRESENTING A MESSAGE FORMAT, COMPRISING A PLURALITY OF SWITCH MEANS EACH HAVING A REST CONDITION AND AN OPERATIVE CONDITION AND EACH HAVING A MANUALLY OPERABLE HANDLE FOR CHANGING THE SWITCH FROM ITS REST CONDITION TO ITS OPERATIVE CONDITION, A LIGHT INCORPORATED IN EACH SWITCH MEANS FOR ILLUMINATING THE HANDLE THEREOF, A PULSE CODE GENERATOR FOR EACH SAID SWITCH MEANS CONNECTED TO A RESPECTIVE SWITCH MEANS AND HAVING THEREWITH AN ENERGIZED AND A DE-ENERGIZED CONDITION, AND IN THE ENERGIZED CONDITION THEREOF BEING RESPONSIVE TO OPERATION OF THE RESPECTIVE SWITCH MEANS TO ITS OPERATIVE CONDITION TO GENERATE A PREDETERMINED PULSE CODE SIGNAL REPRESENTING A PORTION OF SAID MESSAGE FORMAT, SAID PLURALITY OF SWITCH MEANS AND RESPECTIVE PULSE CODE GENERATORS BEING ARRANGED IN A PLURALITY OF GROUPS, EACH GROUP HAVING A PLURALITY OF SWITCH MEANS AND RESPECTIVE PULSE CODE GENERATORS, A SEQUENCE GENERATOR HAVING A PLURALITY OF MODES AT LEAST EQUAL IN NUMBER TO THE NUMBER OF SAID PLURALITY OF GROUPS AND HAVING A TRIGGERING SIGNAL RESPONSIVE MEANS OPERABLE TO ADVANCE THE SEQUENCE GENERATOR FROM ONE MODE TO THE NEXT IN A PREDETERMINED SEQUENCE, SAID SEQUENCE GENERATOR BEING CONNECTED IN DIFFERENT ONES OF SAID MODES TO RESPECTIVE DIFFERENT GROUPS OF SWITCH MEANS AND PULSE CODE GENERATORS FOR ENERGIZING THE SWITCH MEANS AND PULSE CODE GENERATORS IN THE RESPECTIVE GROUP, SAID SEQUENCE GENERATOR BEING CONNECTED IN DIFFERENT ONES OF SAID MODES TO THE LIGHTS INCORPORATED IN THE SWITCH MEANS OF THE RESPECTIVE GROUP ENERGIZED BY SAID SEQUENCE GENERATOR FOR ILLUMINATING THE HANDLES OF THE SWITCH MEANS IN THE GROUP HAVING THE ENERGIZED SWITCH MEANS AND PULSE CODE GENERATORS, SAID SWITCH MEANS PROVIDING A TRIGGERING SIGNAL WHEN ENERGIZED AND MOVED TO ITS OPERATIVE CONDITION, THE TRIGGERING SIGNAL RESPONSIVE MEANS OF SAID SEQUENCE GENERATOR BEING CONNECTED TO SAID SWITCH MEANS FOR RECEIVING SAID TRIGGERING SIGNAL TO ADVANCE THE SIGNAL GENERATOR TO ITS NEXT MODE.
Claim 2
Dependent Claim
315 words
APPARATUS FOR GENERATING A TELEGRAPH CODE SIGNAL REPRESENTING A MESSAGE FORMAT, COMPRISING A PLURALITY OF SWITCH MEANS EACH HAVING A REST CONDITION AND AN OPERATIVE CONDITION AND EACH HAVING A MANUALLY OPERABLE HANDLE FOR CHANGING THE SWITCH FROM ITS REST CONDITION TO ITS OPERATIVE CONDITION, A LIGHT INCORPORATED IN EACH SWITCH MEANS FOR ILLUMINATING THE HANDLE THEREOF, A PULSE CODE GENERATOR FOR EACH SAID SWITCH MEANS CONNECTED TO A RESPECTIVE SWITCH MEANS AND HAVING THEREWITH AN ENERGIZED AND A DE-ENERGIZED CONDITION, AND IN THE ENERGIZED CONDITION THEREOF BEING RESPONSIVE TO OPERATION OF THE RESPECTIVE SWITCH MEANS TO ITS OPERATIVE CONDITION TO GENERATE A PREDETERMINED PULSE CODE SIGNAL REPRESENTING A PORTION OF SAID MESSAGE FORMAT, SAID PLURALITY OF SWITCH MEANS AND RESPECTIVE PULSE CODE GENERATORS BEING ARRANGED IN A PLURALITY OF GROUPS, EACH GROUP HAVING A PLURALITY OF SWITCH MEANS AND RESPECTIVE PULSE CODE GENERATORS, A SEQUENCE GENERATOR HAVING A PLURALITY OF MODES AT LEAST EQUAL IN NUMBER TO THE NUMBER OF SAID PLURALITY OF GROUPS AND HAVING A TRIGGERING SIGNAL RESPONSIVE MEANS OPERABLE TO ADVANCE THE SEQUENCE GENERATOR FROM ONE MODE TO THE NEXT IN A PREDETERMINED SEQUENCE, SAID SEQUENCE GENERATOR BEING CONNECTED IN DIFFERENT ONES OF SAID MODES TO RESPECTIVE DIFFERENT GROUPS OF SWITCH MEANS AND PULSE CODE GENERATORS FOR ENERGIZING THE SWITCH MEANS AND PULSE CODE GENERATORS IN THE RESPECTIVE GROUP, SAID SEQUENCE GENERATOR BEING CONNECTED IN DIFFERENT ONES OF SAID MODES TO THE LIGHTS INCORPORATED IN THE SWITCH MEANS OF THE RESPECTIVE GROUP ENERGIZED BY SAID SEQUENCE GENERATOR FOR ILLUMINATING THE HANDLES OF THE SWITCH MEANS IN THE GROUP HAVING THE ENERGIZED SWITCH MEANS AND PULSE CODE GENERATORS, SAID SWITCH MEANS PROVIDING A TRIGGERING SIGNAL WHEN ENERGIZED AND MOVED TO ITS OPERATIVE CONDITION, THE TRIGGERING SIGNAL RESPONSIVE MEANS OF SAID SEQUENCE GENERATOR BEING CONNECTED TO SAID SWITCH MEANS FOR RECEIVING SAID TRIGGERING SIGNAL TO ADVANCE THE SIGNAL GENERATOR TO ITS NEXT MODE.
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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |