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US3074024A Expired / Lapsed US ⏱️ 0.0 years remaining

High frequency transistor circuit with heat sink

Assignee: Vector Manufacturing Co Inc
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Filing: 1959-10-21
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Granted: 1963-01-15
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Expires: 1979-10-21
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Abstract

No abstract record available.

Inventors

  • 👤 Charles J Weidknecht

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 20:13
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/30; H03F1/302

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 257 words
A HIGH FREQUENCY CIRCUIT FOR AMPLIFYING ALTERNATING CURRENT SIGNALS COMPRISING: AN ELECTRON VALVE HAVING AT LEAST THREE ELECTRODES, WITH A FIRST AND SECOND OF SAID ELECTRODES CONSTITUTING POWER ELECTRODES FOR THE PASSAGE OF GREATER CURRENT FLOW THEREBETWEEN AND THE THIRD ELECTRODE PASSING A LESSER CURRENT AND FUNCTIONING TO REGULATE CURRENT FLOW BETWEEN THE FIRST AND SECOND ELECTRODES, THE GREATEST AMOUNT OF HEATING BEING PRODUCED AT SAID FIRST ELECTRODE, A CONDUCTOR MEANS FOR DIRECTLY CONNECTING THE FIRST ELECTRODE TO A COMMON GROUND HEAT SINK CHASSIS, THEREBY TO PROVIDE A COMMON GROUND AT THE CHASSIS FOR ALTERNATING CURRENT AND DIRECT CURRENT AND TO PROVIDE DIRECT HEAT CONDUCTION FROM THE FIRST ELECTRODE TO THE HEAT SINK, AN INPUT CIRCUIT INTERCONNECTING THE SECOND AND THIRD ELECTRODES TO CONVEY ALTERNATING CURRENT INPUT SINGALS THEREBETWEEN, SAID INPUT CIRCUIT BEING ISOLATED FROM SAID COMMON GROUND FOR BOTH ALTERNATING CURRENT AND DIRECT CURRENT SIGNALS, AND AN OUTPUT CIRCUIT INTERCONNECTING SAID CHASSIS AND SAID SECOND ELECTRODE TO OBTAIN AMPLIFIED ALTERNATING CURRENT OUTPUT SIGNALS, MEANS FOR CONVEYING DIRECT CURRENT ENERGIZATION BETWEEN SAID CHASSIS AND SAID SECOND ELECTRODE AND BEING DECOUPLED FROM SAID OUTPUT CIRCUIT SUCH THAT SUBSTANTIALLY NO ALTERNATING CURRENT FLOWS THROUGH SAID DIRECT CURRENT CONVEYING MEANS, AND MEANS FOR CONVEYING DIRECT CURRENT BIASING BETWEEN SAID SECOND AND THIRD ELECTRODES, AND BIASING MEANS CONSISTING SOLELY OF A RESISTANCE MEANS IN SERIES CIRCUIT RELATIONSHIP BETWEEN SAID SECOND AND THIRD ELECTRODES AND A CAPACITOR MEANS TO BY-PASS ALTERNATING CURRENT FROM FLOWING THROUGH SAID RESISTANCE MEANS, THEREBY TO PREVENT DEGENERATION OF THE ALTERNATING CURRENT BETWEEN SAID SECOND AND THIRD ELECTRODES.

References Cited (Backward Citations)

US2784262A Cited
US2839620A Cited
US2946015A Cited
US2881269A Cited
US2810071A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-01-14 1966-07-16 1967-01-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-01-14 1970-07-16 1971-01-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-01-14 1974-07-16 1975-01-15 $7700.00 Window Closed / Lapsed

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