Patent US3243664A successfully refreshed from Google Patents.
US3243664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On-off controller
Assignee: Elsag Bailey Inc
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Filing: 1962-10-10
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Granted: 1966-03-29
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Expires: 1982-10-10
Abstract
No abstract record available.
Inventors
- 👤 John R Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:21
CPC Classifications
G; G08; G08B; G08B29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN ON-OFF CONTROLLER COMPRISING: AN INPUT LOGIC CIRCUIT FOR PRODUCING A POSITIVE DIRECT VOLTAGE OUTPUT WHEN AN INPUT SIGNAL EXCEEDS A FIRST SETPOINT CONDITION, A NEGATIVE DIRECT VOLTAGE OUTPUT WHEN THE INPUT SIGNAL EXCEEDS A SECOND SETPOINT CONDITION AND A ZERO OUTPUT WHEN THE INPUT SIGNAL IS INTERMEDIATE SAID FIRST AND SECOND SETPOINT CONDITIONS; MEANS FOR CONVERTING THE DIRECT VOLTAGE OUTPUT OF SAID LOGIC CIRCUIT TO AN ALTERNATING SIGNAL HAVING ONE PHASE IN RESPONSE TO SAID POSITIVE OUTPUT, A SECOND PHASE IN RESPONSE TO SAID NEGATIVE OUTPUT AND A ZERO MAGNITUDE IN RESPONSE TO SAID NEGATIVE OUTPUT AND A PHASE DISCRIMINATING CIRCUIT RESPONSIVE TO SAID ALTERNATING SIGNAL FOR PRODUCING THREE SEPARATE OUTPUT CONDITIONS IN RESPONSE TO EXISTENCE OF SAID FIRST PHASE, SAID SECOND PHASE, AND ZERO MAGNITUDE RESPECTIVELY.
Claim 2
Dependent Claim
128 words
AN ON-OFF CONTROLLER COMPRISING: AN INPUT LOGIC CIRCUIT FOR PRODUCING A POSITIVE DIRECT VOLTAGE OUTPUT WHEN AN INPUT SIGNAL EXCEEDS A FIRST SETPOINT CONDITION, A NEGATIVE DIRECT VOLTAGE OUTPUT WHEN THE INPUT SIGNAL EXCEEDS A SECOND SETPOINT CONDITION AND A ZERO OUTPUT WHEN THE INPUT SIGNAL IS INTERMEDIATE SAID FIRST AND SECOND SETPOINT CONDITIONS; MEANS FOR CONVERTING THE DIRECT VOLTAGE OUTPUT OF SAID LOGIC CIRCUIT TO AN ALTERNATING SIGNAL HAVING ONE PHASE IN RESPONSE TO SAID POSITIVE OUTPUT, A SECOND PHASE IN RESPONSE TO SAID NEGATIVE OUTPUT AND A ZERO MAGNITUDE IN RESPONSE TO SAID NEGATIVE OUTPUT AND A PHASE DISCRIMINATING CIRCUIT RESPONSIVE TO SAID ALTERNATING SIGNAL FOR PRODUCING THREE SEPARATE OUTPUT CONDITIONS IN RESPONSE TO EXISTENCE OF SAID FIRST PHASE, SAID SECOND PHASE, AND ZERO MAGNITUDE RESPECTIVELY.
References Cited (Backward Citations)
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Cited
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US2938174A
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US3067969A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |