Patent US3171045A successfully refreshed from Google Patents.
US3171045A
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Assignee: Motors Liquidation Co
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Filing: 1960-11-25
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Granted: 1965-02-23
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Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 James W Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:51
CPC Classifications
H; H01; H01H; H01H43/00; D; D06; D06F; D06F34/00; D06F34/06; H03; H03K; H03K17/00; H03K17/28; H03K17/292; H03K17/51; H03K17/56; H03K17/72; D06F2101/00; D06F2101/14; D06F2105/00; D06F2105/52; D06F2105/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
IN COMBINATION, AN APPLIANCE TIMER COMPRISING A FIRST AND SECOND CONTACT, A SWITCH BLADE FOR SEQUENTIALLY ENGAGING SAID CONTACTS AND RATCHET MEANS COMPRISING THE SOLE MEANS FOR MOVING SAID SWITCH BLADE BETWEEN SAID CONTACTS, A SOLENOID ACTUATOR FOR ACTUATING SAID RATCHET MEANS, A NEGATIVE RESISTANCE DIODE CONNECTED IN SERIES WITH SAID SOLENOID ACTUATOR, SAID DIODE HAVING A PREDETERMINED SWITCHING VOLTAGE, A CAPACITOR CONNECTED IN A PARALLEL CIRCUIT WITH THE ACTUATOR AND DIODE, SAID CAPACITOR BEING CAPABLE OF BEING CHARGED TO A VOLTAGE GREAT ENOUGH TO EXCEED THE SWITCHING VOLTAGE TO SAID DIODE, A RECTIFIER CONNECTED IN SERIES WITH SAID SWITCH BLADE AND ORIENTED TO PREVENT FLOW OF CURRENT THROUGH SAID DIODE BEFORE SAID DIODE REACHES ITS SWITCHING VOLTAGE, AN ALTERNATING CURRENT POWER SUPPLY HAVING A PEAK OUTPUT VOLTAGE GREATER THAN THE SWITCHING VOLTAGE OF SAID DIODE FOR SUPPLYING ENERGY TO SAID RECTIFIER AND SAID PARALLEL CIRCUIT FOR REPEATEDLY OPERATING SAID ACTUATOR, SAID NEGATIVE RESISTANCE DIODE BEING IN THE FORM OF A FOUR LAYER TRANSISTOR, A FIRST RESISTANCE CONNECTED TO SAID FIRST CONTACT, AND A SECOND RESISTANCE BEING CONNECTED TO SAID SECOND CONTACT, SAID RESISTANCES BEING IN PARALLEL WITH EACH OTHER AND CONNECTED IN SERIES WITH SAID PARALLEL CIRCUIT.
Claim 2
Dependent Claim
198 words
IN COMBINATION, AN APPLIANCE TIMER COMPRISING A FIRST AND SECOND CONTACT, A SWITCH BLADE FOR SEQUENTIALLY ENGAGING SAID CONTACTS AND RATCHET MEANS COMPRISING THE SOLE MEANS FOR MOVING SAID SWITCH BLADE BETWEEN SAID CONTACTS, A SOLENOID ACTUATOR FOR ACTUATING SAID RATCHET MEANS, A NEGATIVE RESISTANCE DIODE CONNECTED IN SERIES WITH SAID SOLENOID ACTUATOR, SAID DIODE HAVING A PREDETERMINED SWITCHING VOLTAGE, A CAPACITOR CONNECTED IN A PARALLEL CIRCUIT WITH THE ACTUATOR AND DIODE, SAID CAPACITOR BEING CAPABLE OF BEING CHARGED TO A VOLTAGE GREAT ENOUGH TO EXCEED THE SWITCHING VOLTAGE TO SAID DIODE, A RECTIFIER CONNECTED IN SERIES WITH SAID SWITCH BLADE AND ORIENTED TO PREVENT FLOW OF CURRENT THROUGH SAID DIODE BEFORE SAID DIODE REACHES ITS SWITCHING VOLTAGE, AN ALTERNATING CURRENT POWER SUPPLY HAVING A PEAK OUTPUT VOLTAGE GREATER THAN THE SWITCHING VOLTAGE OF SAID DIODE FOR SUPPLYING ENERGY TO SAID RECTIFIER AND SAID PARALLEL CIRCUIT FOR REPEATEDLY OPERATING SAID ACTUATOR, SAID NEGATIVE RESISTANCE DIODE BEING IN THE FORM OF A FOUR LAYER TRANSISTOR, A FIRST RESISTANCE CONNECTED TO SAID FIRST CONTACT, AND A SECOND RESISTANCE BEING CONNECTED TO SAID SECOND CONTACT, SAID RESISTANCES BEING IN PARALLEL WITH EACH OTHER AND CONNECTED IN SERIES WITH SAID PARALLEL CIRCUIT.
References Cited (Backward Citations)
US2150409A
Cited
US2288458A
Cited
US2383328A
Cited
US2502823A
Cited
US2956489A
Cited
US3063643A
Cited
US3013166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |