US3084311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time delay circuit
Assignee: Individual
•
Filing: 1960-02-08
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Granted: 1963-04-02
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Expires: 1980-02-08
Abstract
No abstract record available.
Inventors
- 👤 George T Culbertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:41
CPC Classifications
H; H01; H01H; H01H47/00; H01H47/02; H01H47/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A TIME DELAY CIRCUIT COMPRISING AN INPUT SOURCE OF DIRECT CURRENT POTENTIAL, A DOUBLE-BASE DIODE HAVING TWO BASE ELECTRODES AND AN EMITTER ELECTRODE, MEANS FOR SELECTIVELY APPLYING SAID DIRECT CURRENT POTENTIAL SOURCE ACROSS SAID TWO BASE ELECTRODES TO BEGIN A TIME PERIOD, A TIME CONSTANT NETWORK INCLUDING A RESISTOR AND A CAPACITOR CONNECTED ACROSS SAID TWO BASE ELECTRODES, A SECOND CAPACITOR CONNECTED ACROSS A PORTION OF SAID TIME CONSTANT NETWORK TO REDUCE THE EFFECT OF TRANSIENTS ENTERING FROM SAID INPUT SOURCE, AN OUTPUT RELAY WINDING CONNECTED BETWEEN SAID EMITTER ELECTRODE AND THE CAPACITOR OF SAID TIME CONSTANT NETWORK, SAID OUTPUT RELAY HAVING A MAGNETIC LATCH AND ARRANGED TO BE ACTUATED WHEN SAID CAPACITOR CHARGES TO A PREDETERMINED POTENTIAL EXCEEDING THE PEAK POINT OF SAID EMITTER CURRENT-VOLTAGE CHARACTERISTIC, A RESET WINDING OF SAID OUTPUT RELAY CONNECTED ACROSS SAID FIRST MENTIONED CAPACITOR AND MEANS FOR SELECTIVELY ENERGIZING SAID RESET WINDING TO DISCHARGE SAID FIRST MENTIONED CAPACITOR AND TO RESET SAID OUTPUT RELAY FOR A FURTHER TIME PERIOD OPERATION.
Claim 2
Dependent Claim
166 words
A TIME DELAY CIRCUIT COMPRISING AN INPUT SOURCE OF DIRECT CURRENT POTENTIAL, A DOUBLE-BASE DIODE HAVING TWO BASE ELECTRODES AND AN EMITTER ELECTRODE, MEANS FOR SELECTIVELY APPLYING SAID DIRECT CURRENT POTENTIAL SOURCE ACROSS SAID TWO BASE ELECTRODES TO BEGIN A TIME PERIOD, A TIME CONSTANT NETWORK INCLUDING A RESISTOR AND A CAPACITOR CONNECTED ACROSS SAID TWO BASE ELECTRODES, A SECOND CAPACITOR CONNECTED ACROSS A PORTION OF SAID TIME CONSTANT NETWORK TO REDUCE THE EFFECT OF TRANSIENTS ENTERING FROM SAID INPUT SOURCE, AN OUTPUT RELAY WINDING CONNECTED BETWEEN SAID EMITTER ELECTRODE AND THE CAPACITOR OF SAID TIME CONSTANT NETWORK, SAID OUTPUT RELAY HAVING A MAGNETIC LATCH AND ARRANGED TO BE ACTUATED WHEN SAID CAPACITOR CHARGES TO A PREDETERMINED POTENTIAL EXCEEDING THE PEAK POINT OF SAID EMITTER CURRENT-VOLTAGE CHARACTERISTIC, A RESET WINDING OF SAID OUTPUT RELAY CONNECTED ACROSS SAID FIRST MENTIONED CAPACITOR AND MEANS FOR SELECTIVELY ENERGIZING SAID RESET WINDING TO DISCHARGE SAID FIRST MENTIONED CAPACITOR AND TO RESET SAID OUTPUT RELAY FOR A FURTHER TIME PERIOD OPERATION.
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |