US3324309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistable switch with controlled refiring threshold
Assignee: QUANTA SYSTEMS Corp A CO CORP
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Filing: 1963-07-17
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Granted: 1967-06-06
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Expires: 1983-07-17
Abstract
No abstract record available.
Inventors
- 👤 Jr David A Zeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:58
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/2893
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN A BISTABLE SWITCHING CIRCUIT HAVING A FIRST VALVE AND A SECOND VALVE, EACH OF SAID VALVES HAVING A FIRST STATE AND A SECOND STATE AND BEING INTERCONNECTED SUCH THAT SAID CIRCUIT HAS A FIRST STABLE STATE AND A SECOND STABLE STATE, EACH OF SAID VALVES HAVING A CONTROL ELEMENT AND A LOW IMPEDANCE OUTPUT ELEMENT, THE LOW IMPEDANCE ELEMENTS OF SAID VALVES BEING COUPLED TO ONE ANOTHER AND HAVING A COMMON RESISTOR, SAID CIRCUIT INCLUDING AN INPUT LEAD CONNECTED TO THE CONTROL ELEMENT OF SAID FIRST VALVE SO THAT AN INPUT SIGNAL PASSING A FIRST THRESHOLD VOLTAGE IN A FIRST DIRECTION WILL FIRE SAID CIRCUIT INTO ITS FIRST STATE AND AN INPUT SIGNAL PASSING A SECOND THRESHOLD VOLTAGE IN A SECOND DIRECTION WILL REFIRE SAID CIRCUIT INTO ITS SECOND STATE, THE IMPROVEMENT COMPRISING: A VOLTAGE DIVIDING BIAS MEANS COUPLED TO THE CONTROL ELEMENT OF SAID SECOND VALVE, AND
Claim 2
Dependent Claim
149 words
IN A BISTABLE SWITCHING CIRCUIT HAVING A FIRST VALVE AND A SECOND VALVE, EACH OF SAID VALVES HAVING A FIRST STATE AND A SECOND STATE AND BEING INTERCONNECTED SUCH THAT SAID CIRCUIT HAS A FIRST STABLE STATE AND A SECOND STABLE STATE, EACH OF SAID VALVES HAVING A CONTROL ELEMENT AND A LOW IMPEDANCE OUTPUT ELEMENT, THE LOW IMPEDANCE ELEMENTS OF SAID VALVES BEING COUPLED TO ONE ANOTHER AND HAVING A COMMON RESISTOR, SAID CIRCUIT INCLUDING AN INPUT LEAD CONNECTED TO THE CONTROL ELEMENT OF SAID FIRST VALVE SO THAT AN INPUT SIGNAL PASSING A FIRST THRESHOLD VOLTAGE IN A FIRST DIRECTION WILL FIRE SAID CIRCUIT INTO ITS FIRST STATE AND AN INPUT SIGNAL PASSING A SECOND THRESHOLD VOLTAGE IN A SECOND DIRECTION WILL REFIRE SAID CIRCUIT INTO ITS SECOND STATE, THE IMPROVEMENT COMPRISING: A VOLTAGE DIVIDING BIAS MEANS COUPLED TO THE CONTROL ELEMENT OF SAID SECOND VALVE, AND
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |