US3153176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonant reed relay circuit with long activation time delay
Assignee: Individual
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Filing: 1962-07-03
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Granted: 1964-10-13
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Expires: 1982-07-03
Abstract
No abstract record available.
Inventors
- 👤 Wallace C Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:02
CPC Classifications
H; H01; H01H; H01H47/00; H01H47/02; H01H47/18; H01H51/00; H01H51/30; H01H51/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A RESONANT REED RELAY CIRCUIT HAVING A RELATIVELY LONG TIME DELAY, SAID CIRCUIT COMPRISING: A RESONANT REED RELAY; AN OUTPUT RELAY; A SOURCE OF DIRECT CURRENT; A RELATIVELY LONG TIME CONSTANT CIRCUIT COMPRISING A FIRST RESISTOR AND A FIRST CONDENSER CONNECTED IN SERIES ACROSS SAID SOURCE; A RELATIVELY SHORT TIME CONSTANT CIRCUIT COMPRISING A CURRENT LIMITING RESISTOR, THE CONTACTS OF SAID RESONANT REED RELAY AND A SECOND CONDENSER CONNECTED IN SERIES ACROSS SAID SOURCE; A THIRD RESISTANCE HAVING A VALUE SMALL RELATIVE TO THE VALUE OF SAID FIRST RESISTANCE CONNECTED IN SHUNT TO SAID SECOND CONDENSER; A SWITCHING DEVICE ARRANGED TO CONNECT SAID THIRD RESISTANCE IN SHUNT TO SAID FIRST CONDENSER WHENEVER THE VOLTAGE ACROSS SAID SECOND CONDENSER IS LESS THAN THE VOLTAGE ACROSS SAID FIRST CONDENSER; AND MEANS HAVING AN INPUT COUPLED ACROSS SAID FIRST CONDENSER AND AN OUTPUT COUPLED TO SAID OUTPUT RELAY AND OPERATIVE WHEN THE VOLTAGE ACROSS SAID FIRST CONDENSER EXCEEDS A PREDETERMINED VALUE TO ACTUATE SAID OUTPUT RELAY.
Claim 2
Dependent Claim
163 words
A RESONANT REED RELAY CIRCUIT HAVING A RELATIVELY LONG TIME DELAY, SAID CIRCUIT COMPRISING: A RESONANT REED RELAY; AN OUTPUT RELAY; A SOURCE OF DIRECT CURRENT; A RELATIVELY LONG TIME CONSTANT CIRCUIT COMPRISING A FIRST RESISTOR AND A FIRST CONDENSER CONNECTED IN SERIES ACROSS SAID SOURCE; A RELATIVELY SHORT TIME CONSTANT CIRCUIT COMPRISING A CURRENT LIMITING RESISTOR, THE CONTACTS OF SAID RESONANT REED RELAY AND A SECOND CONDENSER CONNECTED IN SERIES ACROSS SAID SOURCE; A THIRD RESISTANCE HAVING A VALUE SMALL RELATIVE TO THE VALUE OF SAID FIRST RESISTANCE CONNECTED IN SHUNT TO SAID SECOND CONDENSER; A SWITCHING DEVICE ARRANGED TO CONNECT SAID THIRD RESISTANCE IN SHUNT TO SAID FIRST CONDENSER WHENEVER THE VOLTAGE ACROSS SAID SECOND CONDENSER IS LESS THAN THE VOLTAGE ACROSS SAID FIRST CONDENSER; AND MEANS HAVING AN INPUT COUPLED ACROSS SAID FIRST CONDENSER AND AN OUTPUT COUPLED TO SAID OUTPUT RELAY AND OPERATIVE WHEN THE VOLTAGE ACROSS SAID FIRST CONDENSER EXCEEDS A PREDETERMINED VALUE TO ACTUATE SAID OUTPUT RELAY.
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |