US3273077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scr sine wave generator
Assignee: Duracell Inc USA
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Filing: 1965-02-26
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Granted: 1966-09-13
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Expires: 1985-02-26
Abstract
No abstract record available.
Inventors
- 👤 Hans R Camenzind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:46
CPC Classifications
H; H03; H03B; H03B11/00; H03B11/04; H03B11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
AN ALTERNATING CURRENT SINE WAVE GENERATOR ACTIVATED BY A DIRECT CURRENT SOURCE HAVING POSITIVE AND NEGATIVE TERMINALS, SAID GENERATOR COMPRISING: A DIODE HAVING A CATHODE AND AN ANODE; AN AUTOTRANSFORMER HAVING START AND FINISH TERMINALS WITH A TAP APPROXIMATELY CENTRALLY LOCATED THEREON AND A CAPACITANCE MEANS ATTACHED THERETO; A SILCON CONTROLLED RECTIFIER HAVING AN ANODE, A CATHODE AND A GATE; SAID POSITIVE TERMINAL OF SAID DIRECT CURENT SOURCE CONNECTED TO SAID ANODE OF SAID DIODE; SAID CATHODE OF SAID DIOE CONNECTED TO SAID START TERMINAL OF SAID AUTOTRANSFORMER; SAID FINISH TERMINAL OF SAID AUTOTRANSFORMER CONNECTED TO SAID ANODE OF SAID SILICON CONTROLLED RECTIFIER; A CAPACITOR, AND CAPACITOR CONNECTED BETWEEN SAID TAP ON SAID AUTOTRANSFORMER AND A COMMON POINT BETWEEN SAID NEGATIVE TERMINAL OF SAID DIRECT CURRENT SOURCE AND SAID CATHODE OF SAID SILICON CONTROLLED RECTIFIER; AND MEANS FOR TRIGGERING SAID SILICON CONTROLLED RECTIFIER AT PREDETERMINED TIMES SO SO TO PROVIDE A SINE WAVE OUTPUT ACROSS AND CAPACITANCE MEANS AT A FREQUENCY DETERMINED BY THE CHARACTERISTICS OF SAID CAPACITANCE MEANS, SAID CAPACITOR, AND SAID AUTOTRANSFORMER, SAID TRIGGERING MEANS CONNECTED TO SAID GATE OF SAID SILICON CONTROLLED RECTIFIER.
Claim 2
Dependent Claim
186 words
AN ALTERNATING CURRENT SINE WAVE GENERATOR ACTIVATED BY A DIRECT CURRENT SOURCE HAVING POSITIVE AND NEGATIVE TERMINALS, SAID GENERATOR COMPRISING: A DIODE HAVING A CATHODE AND AN ANODE; AN AUTOTRANSFORMER HAVING START AND FINISH TERMINALS WITH A TAP APPROXIMATELY CENTRALLY LOCATED THEREON AND A CAPACITANCE MEANS ATTACHED THERETO; A SILCON CONTROLLED RECTIFIER HAVING AN ANODE, A CATHODE AND A GATE; SAID POSITIVE TERMINAL OF SAID DIRECT CURENT SOURCE CONNECTED TO SAID ANODE OF SAID DIODE; SAID CATHODE OF SAID DIOE CONNECTED TO SAID START TERMINAL OF SAID AUTOTRANSFORMER; SAID FINISH TERMINAL OF SAID AUTOTRANSFORMER CONNECTED TO SAID ANODE OF SAID SILICON CONTROLLED RECTIFIER; A CAPACITOR, AND CAPACITOR CONNECTED BETWEEN SAID TAP ON SAID AUTOTRANSFORMER AND A COMMON POINT BETWEEN SAID NEGATIVE TERMINAL OF SAID DIRECT CURRENT SOURCE AND SAID CATHODE OF SAID SILICON CONTROLLED RECTIFIER; AND MEANS FOR TRIGGERING SAID SILICON CONTROLLED RECTIFIER AT PREDETERMINED TIMES SO SO TO PROVIDE A SINE WAVE OUTPUT ACROSS AND CAPACITANCE MEANS AT A FREQUENCY DETERMINED BY THE CHARACTERISTICS OF SAID CAPACITANCE MEANS, SAID CAPACITOR, AND SAID AUTOTRANSFORMER, SAID TRIGGERING MEANS CONNECTED TO SAID GATE OF SAID SILICON CONTROLLED RECTIFIER.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |