US3215896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast response overload protection circuit
Assignee: General Electric Co
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Filing: 1962-10-04
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Granted: 1965-11-02
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Expires: 1982-10-04
Abstract
No abstract record available.
Inventors
- 👤 Donald P Shattuck
- 👤 Chowdhuri Pritindra
- 👤 Donald K Bisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:51
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/73; H02; H02H; H02H3/00; H02H3/02; H02H3/021; H02H3/023; H02H3/08; H02H3/087; H02H7/00; H02H7/10; H02H7/12; H02H7/122; H02H7/1227; H01; H01H; H01H85/00; H01H85/02; H01H85/46; H01H2085/466
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A FAST RESPONSE OVERLOAD PROTECTION CIRCUIT INCLUDING IN COMBINATION SENSING MEANS COMPRISING A RESISTOR OPRATIVELY COUPLED IN SERIES CIRCUIT RELATIONSHIP WITH A LOAD TO BE PROTECTED ACROSS A SOURCE OF ELECTRIC POTENTIAL A GATING SIGNAL SOURCE COMPRISING A PLURALITY OF GATING PULSE GENERATORS EACH OPERATIVELY COUPLED ACROSS SAID SENSING RESISTOR, A FIRST SET OF PULSE TRANSFORMERS EACH HAVING ITS PRIMARY WINDING COUPLED ACROSS A RESPECTIVE ASSOCIATED GATING PULSE GENERATOR, A MASTER GATE CONTROLLED SOLID STATE CONDUCTING DEVICE HAVING ITS GATING ELECTRODE OPERATIVELY COUPLED TO THE SECONDARY WINDINGS OF EACH OF SAID FIRST PULSE TRANSFORMERS, A SECOND PULSE TRANSFORMER HAVING A PRIMARY WINDING AND APLURALITY OF SECONDARY WINDINGS WITH THE PRIMARY WINDING BEING COUPLED ACROSS THE MASTER GATE CONTROLLED SOLID STATE CONDUCTING DEVICE, AND A PLURALITY OF SHORT CIRCUITING GATE CONTROLLED SOLID STATE CONDUCTING DEVICES CONNECTED IN PARALLEL CIRCUIT RELATIONSHIP DIRECTLY ACROSS THE SOURCE OF ELECTRIC POTENTIAL WITH THE GATING ELECTRODES OF THE SHORT CIRCUIT GATE CONTROLLED SOLID STATE CONDUCTING DEVICES BEING CONNECTED TO A RESPECTIVE SECONDARY WINDING OF SAID SECOND PULSE TRANSFORMER FOR SHORT CIRCUITING THE SOURCE PULSE POTENTIAL IN THE EVENT OF A OVERLOAD CONDITION.
Claim 2
Dependent Claim
186 words
A FAST RESPONSE OVERLOAD PROTECTION CIRCUIT INCLUDING IN COMBINATION SENSING MEANS COMPRISING A RESISTOR OPRATIVELY COUPLED IN SERIES CIRCUIT RELATIONSHIP WITH A LOAD TO BE PROTECTED ACROSS A SOURCE OF ELECTRIC POTENTIAL A GATING SIGNAL SOURCE COMPRISING A PLURALITY OF GATING PULSE GENERATORS EACH OPERATIVELY COUPLED ACROSS SAID SENSING RESISTOR, A FIRST SET OF PULSE TRANSFORMERS EACH HAVING ITS PRIMARY WINDING COUPLED ACROSS A RESPECTIVE ASSOCIATED GATING PULSE GENERATOR, A MASTER GATE CONTROLLED SOLID STATE CONDUCTING DEVICE HAVING ITS GATING ELECTRODE OPERATIVELY COUPLED TO THE SECONDARY WINDINGS OF EACH OF SAID FIRST PULSE TRANSFORMERS, A SECOND PULSE TRANSFORMER HAVING A PRIMARY WINDING AND APLURALITY OF SECONDARY WINDINGS WITH THE PRIMARY WINDING BEING COUPLED ACROSS THE MASTER GATE CONTROLLED SOLID STATE CONDUCTING DEVICE, AND A PLURALITY OF SHORT CIRCUITING GATE CONTROLLED SOLID STATE CONDUCTING DEVICES CONNECTED IN PARALLEL CIRCUIT RELATIONSHIP DIRECTLY ACROSS THE SOURCE OF ELECTRIC POTENTIAL WITH THE GATING ELECTRODES OF THE SHORT CIRCUIT GATE CONTROLLED SOLID STATE CONDUCTING DEVICES BEING CONNECTED TO A RESPECTIVE SECONDARY WINDING OF SAID SECOND PULSE TRANSFORMER FOR SHORT CIRCUITING THE SOURCE PULSE POTENTIAL IN THE EVENT OF A OVERLOAD CONDITION.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |