US3217206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical timing apparatus and means for adjusting the same
Assignee: Individual
•
Filing: 1961-07-03
•
Granted: 1965-11-09
•
Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Childers Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
H; H01; H01H; H01H47/00; H01H47/02; H01H47/18; H03; H03K; H03K17/00; H03K17/28; H03K17/288
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN ELECTRICAL TIMING MECHANISM A GAS THYRATON TUBE HAVING A PLATE, A CONTROL GRID, AND A CATHODE, A CONTROL GRID BIAS CIRCUIT INCLUDING A PRIMARY CURRENT VOLTAGE SOURCE, AN AUXILIARY DIRECT CURRENT VOLTAGE SOURCE, FIRST MEANS FOR ADJUSTABLY PRODUCING A BIAS VOLTAGE FROM SAID PRIMARY DIRECT CURRENT VOLTAGE SOURCE, SECOND MEANS FOR ADJUSTABLY PRODUCING A BIAS VOLTAGE FROM SAID AUXILIARY DIRECT CURRENT VOLTAGE SOURCE, SAID FIRST AND SECOND MEANS BEING CONNECTED IN SERIES IN SAID CONTROL GRID BIAS CIRCUIT BETWEEN CATHODE AND GRID, AND A CONDENSER CONNECTED BETWEEN CATHODE AND CONTROL GRID PARALLELING SAID FIRST AND SECOND MEANS, A CHARGING CIRCUIT FOR SAID CONDENSER INCLUDING SAID FIRST AND SECOND MEANS AND SAID PRIMARY AND AUXILIARY DIRECT CURRENT VOLTAGE SOURCES, MEANS FOR OPENING AND CLOSING SAID CHARGING CIRCUIT, SAID LATTER MEANS BEING POSITIONED IN THE CHARGING CIRCUIT AT A POINT TO DISCONNECT SAID FIRST AND SECOND MEANS AND SAID PRI-
Claim 2
Dependent Claim
149 words
IN ELECTRICAL TIMING MECHANISM A GAS THYRATON TUBE HAVING A PLATE, A CONTROL GRID, AND A CATHODE, A CONTROL GRID BIAS CIRCUIT INCLUDING A PRIMARY CURRENT VOLTAGE SOURCE, AN AUXILIARY DIRECT CURRENT VOLTAGE SOURCE, FIRST MEANS FOR ADJUSTABLY PRODUCING A BIAS VOLTAGE FROM SAID PRIMARY DIRECT CURRENT VOLTAGE SOURCE, SECOND MEANS FOR ADJUSTABLY PRODUCING A BIAS VOLTAGE FROM SAID AUXILIARY DIRECT CURRENT VOLTAGE SOURCE, SAID FIRST AND SECOND MEANS BEING CONNECTED IN SERIES IN SAID CONTROL GRID BIAS CIRCUIT BETWEEN CATHODE AND GRID, AND A CONDENSER CONNECTED BETWEEN CATHODE AND CONTROL GRID PARALLELING SAID FIRST AND SECOND MEANS, A CHARGING CIRCUIT FOR SAID CONDENSER INCLUDING SAID FIRST AND SECOND MEANS AND SAID PRIMARY AND AUXILIARY DIRECT CURRENT VOLTAGE SOURCES, MEANS FOR OPENING AND CLOSING SAID CHARGING CIRCUIT, SAID LATTER MEANS BEING POSITIONED IN THE CHARGING CIRCUIT AT A POINT TO DISCONNECT SAID FIRST AND SECOND MEANS AND SAID PRI-
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |