US3150319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test circuit for automatically cycling a servo system
Assignee: Unisys Corp
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Filing: 1962-03-29
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Granted: 1964-09-22
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Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 Henry E Hofferber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:54
CPC Classifications
B; B64; B64C; B64C13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN A TEST CIRCUIT FOR AUTOMATICALLY CYCLING A SERVO SYSTEM COMPRISING: (1) A SERVO SYSTEM INCLUDING CONTROL SIGNAL GENERATING MEANS FOR PROVIDING A CONTROL SIGNAL, FEEDBACK SIGNAL GENERATING MEANS FOR PROVIDING A FEEDBACK SIGNAL AND ALGEBRAIC SUMMATION MEANS RESPONSIVE TO SAID CONTROL SIGNAL AND FEEDBACK SIGNAL FOR PROVIDING AN ERROR SIGNAL IN ACCORDANCE WITH THE DIFFERENCE THEREBETWEEN, (2) FAILURE SENSING MEANS RESPONSIVE TO SAID ERROR SIGNAL FOR PROVIDING A WARNING SIGNAL WHEN SAID ERROR SIGNAL EXCEEDS A PREDETERMINED MAGNITUDE, (3) FIRST SWITCHING MEANS CONNECTED TO SAID FAILURE SENSING MEANS INCLUDING MEANS FOR VARYING SAID ERROR SIGNAL TO THEREBY EXCEED SAID PREDETERMINED MAGNITUDE, (4) SECOND SWITCHING MEANS CONNECTED TO SAID FAILURE SENSING MEANS INCLUDING MEANS FOR MAINTAINING SAID SECOND SWITCHING MEANS ENERGIZED FOR A PREDETERMINED TIME INTERVAL AFTER SAID ERROR SIGNAL IS LESS THAN SAID PREDETERMINED MAGNITUDE, (5) SAID FIRST AND SECOND SWITCHING MEANS BEING CONNECTED TO EACH OTHER, (6) AND MEANS CONNECTED TO SAID FIRST AND SECOND SWITCHING MEANS FOR INITIALLY ENERGIZING SAID SWITCHING MEANS TO INITIATE A TEST CYCLE.
Claim 2
Dependent Claim
170 words
IN A TEST CIRCUIT FOR AUTOMATICALLY CYCLING A SERVO SYSTEM COMPRISING: (1) A SERVO SYSTEM INCLUDING CONTROL SIGNAL GENERATING MEANS FOR PROVIDING A CONTROL SIGNAL, FEEDBACK SIGNAL GENERATING MEANS FOR PROVIDING A FEEDBACK SIGNAL AND ALGEBRAIC SUMMATION MEANS RESPONSIVE TO SAID CONTROL SIGNAL AND FEEDBACK SIGNAL FOR PROVIDING AN ERROR SIGNAL IN ACCORDANCE WITH THE DIFFERENCE THEREBETWEEN, (2) FAILURE SENSING MEANS RESPONSIVE TO SAID ERROR SIGNAL FOR PROVIDING A WARNING SIGNAL WHEN SAID ERROR SIGNAL EXCEEDS A PREDETERMINED MAGNITUDE, (3) FIRST SWITCHING MEANS CONNECTED TO SAID FAILURE SENSING MEANS INCLUDING MEANS FOR VARYING SAID ERROR SIGNAL TO THEREBY EXCEED SAID PREDETERMINED MAGNITUDE, (4) SECOND SWITCHING MEANS CONNECTED TO SAID FAILURE SENSING MEANS INCLUDING MEANS FOR MAINTAINING SAID SECOND SWITCHING MEANS ENERGIZED FOR A PREDETERMINED TIME INTERVAL AFTER SAID ERROR SIGNAL IS LESS THAN SAID PREDETERMINED MAGNITUDE, (5) SAID FIRST AND SECOND SWITCHING MEANS BEING CONNECTED TO EACH OTHER, (6) AND MEANS CONNECTED TO SAID FIRST AND SECOND SWITCHING MEANS FOR INITIALLY ENERGIZING SAID SWITCHING MEANS TO INITIATE A TEST CYCLE.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |