US3200306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Touch responsive circuit
Assignee: Tung Sol Electric Inc
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Filing: 1963-09-12
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Granted: 1965-08-10
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Expires: 1983-09-12
Abstract
No abstract record available.
Inventors
- 👤 Carl E Atkins
- 👤 Robert L Ziolkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:20
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/96; H03K17/962; G; G08; G08B; G08B13/00; G08B13/22; G08B13/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A TOUCH RESPONSIVE CIRCUIT WHICH OPERATES ON A SOURCE OF D.C. POTENTIAL COMPRISING: (A) A CAPACITOR; (B) A CHARGING CIRCUIT COUPLING SAID CAPACITOR TO THE SOURCE OF D.C. POTENTIAL FOR CHARGING SAID CAPACITOR TO A FIRST LEVEL D.C. POTENTIAL; (C) A SEMICONDUCTOR SWITCHING DEVICE COUPLED ACROSS THE CAPACITOR TO DISCHARGE SAID CAPACITOR TO A SECOND LEVEL OF D.C. POTENTIAL WHEN SAID SEMICONDUCTOR SWITCHING DEVICE IS CONDUCTIVE; (D) AN OSCILLATOR COUPLED TO SAID SEMICONDUCTOR SWITCHING DEVICE TO PROVIDE PULSES TO RENDER SAID SEMICONDUCTOR SWITCHING DEVICE CONDUCTIVE; (E) TOUCH RESPONSIVE MEANS COUPLED TO SAID OSCILLATOR TO SUPPRESS THE MAGNITUDE OF THE PULSES SUPPLIED TO THE OSCILLATOR WHEN THE TOUCH RESPONSIVE MEANS IS TOUCHED TO RENDER THE SEMICONDUCTOR SWITCHING DEVICE NON-CONDUCTIVE; AND (F) CIRCUIT CONTROLLING MEANS RESPONSIVE TO THE LEVEL OF POTENTIAL ACROSS SAID CAPACITOR.
Claim 2
Dependent Claim
132 words
A TOUCH RESPONSIVE CIRCUIT WHICH OPERATES ON A SOURCE OF D.C. POTENTIAL COMPRISING: (A) A CAPACITOR; (B) A CHARGING CIRCUIT COUPLING SAID CAPACITOR TO THE SOURCE OF D.C. POTENTIAL FOR CHARGING SAID CAPACITOR TO A FIRST LEVEL D.C. POTENTIAL; (C) A SEMICONDUCTOR SWITCHING DEVICE COUPLED ACROSS THE CAPACITOR TO DISCHARGE SAID CAPACITOR TO A SECOND LEVEL OF D.C. POTENTIAL WHEN SAID SEMICONDUCTOR SWITCHING DEVICE IS CONDUCTIVE; (D) AN OSCILLATOR COUPLED TO SAID SEMICONDUCTOR SWITCHING DEVICE TO PROVIDE PULSES TO RENDER SAID SEMICONDUCTOR SWITCHING DEVICE CONDUCTIVE; (E) TOUCH RESPONSIVE MEANS COUPLED TO SAID OSCILLATOR TO SUPPRESS THE MAGNITUDE OF THE PULSES SUPPLIED TO THE OSCILLATOR WHEN THE TOUCH RESPONSIVE MEANS IS TOUCHED TO RENDER THE SEMICONDUCTOR SWITCHING DEVICE NON-CONDUCTIVE; AND (F) CIRCUIT CONTROLLING MEANS RESPONSIVE TO THE LEVEL OF POTENTIAL ACROSS SAID CAPACITOR.
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |