US3443118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monostable multivibrator pulse shaper
Assignee: Amerace Corp
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Filing: 1966-03-07
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Granted: 1969-05-06
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Expires: 1986-03-07
Abstract
No abstract record available.
Inventors
- 👤 Roland T Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:32
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/30; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
282 words
A MONOSTABLE MULTIVIBRATOR PULSE SHAPER FOR DELIVERING A USABLE COUNT PULSE FROMA OSCILLATOR TO THE INPUT OF A MAGNETIC CORE COUNTER COMPRISING: A SOURCE OF POSITIVE VOLTAGE; A MAGNETIC MEMORY COMPRISING A TOROIDAL CORE OF SQUARE LOOP, MAGNETIC MATERIAL AND A PLURALITY OF WINDINGS WOUND ON THE CORE; A MONOSTABLE MULTIVIBRATOR HAVING A STABLE STATE AND A QUASI-STABLE STATE AND COMPRISING A FIRST TRANSISTOR AND A SECOND TRANSISTOR; A THIRD TRANSISTOR; MEANS CONNECTING THE SOURCE OF POSITIVE VOLTAGE TO THE TRANSISTORS OF THE MONOSTABLE MULTIVIBRATOR AND TO THE THIRD TRANSISTOR SUCH THAT IN THE STABLE STATE OF THE MONOSTABLE MULTIVIBRATOR, THE FIRST TRANSISTOR CONDUCTS AND THE SECOND TRANSISTOR AND THE THIRD TRANSISTOR DO NOT CONDUCT AND SUCH THAT IN THE QUASI-STABLE STATE OF THE MONOSTABLE MULTIVIBRATOR THE SECOND TRANSISTOR CONDUCTS AND THE FIRST TRANSISTOR DOES NOT CONDUCT; INPUT MEANS FOR APPLYING AN INPUT PULSES TO THE BASE OF ONE OF THE TRANSISTORS OF THE MONOSTABLE MULTIVIBRATOR TO CAUSE THE MONOSTABLE MULTIVIBRATOR TO CHANGE FROM ITS STABLE STATE TO ITS QUASI-STABLE STATE; A FIRST WINDING OF THE MAGNETIC MEMORY BEING CONNECTED TO THE SECOND TRANSISTOR SUCH THAT WHEN THE SECOND TRANSISTOR CONDUCTS, FULL VOLTAGE APPEARS ACROSS SAID WINDING TO MAINTAIN THE FIRST TRANSISTOR NONCONDUCTING; A SECOND WINDING AND A THIRD WINDING OF THE MAGNETIC MEMORY BEING CONNECTED TO THE THIRD TRANSISTOR SUCH THAT WHEN THE INPUT PULSE CEASES, THE CHANGE IN CURRENT FLOW THROUGH THE FIRST WINDING INDUCES CURRENT FLOW IN THE SECOND WINDING AND THE THIRD WINDING IN SUCH DIRECTIONS AS TO BRING THE THIRD TRANSISTOR INTO CONDUCTION; AND A FOURTH WINDING OF THE MAGNETIC MEMORY BEING PLACED SUCH THAT AN OUTPUT PULSE APPEARS ACROSS IT WHEN THE THIRD TRANSISTOR IS CONDUCTING.
Claim 2
Dependent Claim
282 words
A MONOSTABLE MULTIVIBRATOR PULSE SHAPER FOR DELIVERING A USABLE COUNT PULSE FROMA OSCILLATOR TO THE INPUT OF A MAGNETIC CORE COUNTER COMPRISING: A SOURCE OF POSITIVE VOLTAGE; A MAGNETIC MEMORY COMPRISING A TOROIDAL CORE OF SQUARE LOOP, MAGNETIC MATERIAL AND A PLURALITY OF WINDINGS WOUND ON THE CORE; A MONOSTABLE MULTIVIBRATOR HAVING A STABLE STATE AND A QUASI-STABLE STATE AND COMPRISING A FIRST TRANSISTOR AND A SECOND TRANSISTOR; A THIRD TRANSISTOR; MEANS CONNECTING THE SOURCE OF POSITIVE VOLTAGE TO THE TRANSISTORS OF THE MONOSTABLE MULTIVIBRATOR AND TO THE THIRD TRANSISTOR SUCH THAT IN THE STABLE STATE OF THE MONOSTABLE MULTIVIBRATOR, THE FIRST TRANSISTOR CONDUCTS AND THE SECOND TRANSISTOR AND THE THIRD TRANSISTOR DO NOT CONDUCT AND SUCH THAT IN THE QUASI-STABLE STATE OF THE MONOSTABLE MULTIVIBRATOR THE SECOND TRANSISTOR CONDUCTS AND THE FIRST TRANSISTOR DOES NOT CONDUCT; INPUT MEANS FOR APPLYING AN INPUT PULSES TO THE BASE OF ONE OF THE TRANSISTORS OF THE MONOSTABLE MULTIVIBRATOR TO CAUSE THE MONOSTABLE MULTIVIBRATOR TO CHANGE FROM ITS STABLE STATE TO ITS QUASI-STABLE STATE; A FIRST WINDING OF THE MAGNETIC MEMORY BEING CONNECTED TO THE SECOND TRANSISTOR SUCH THAT WHEN THE SECOND TRANSISTOR CONDUCTS, FULL VOLTAGE APPEARS ACROSS SAID WINDING TO MAINTAIN THE FIRST TRANSISTOR NONCONDUCTING; A SECOND WINDING AND A THIRD WINDING OF THE MAGNETIC MEMORY BEING CONNECTED TO THE THIRD TRANSISTOR SUCH THAT WHEN THE INPUT PULSE CEASES, THE CHANGE IN CURRENT FLOW THROUGH THE FIRST WINDING INDUCES CURRENT FLOW IN THE SECOND WINDING AND THE THIRD WINDING IN SUCH DIRECTIONS AS TO BRING THE THIRD TRANSISTOR INTO CONDUCTION; AND A FOURTH WINDING OF THE MAGNETIC MEMORY BEING PLACED SUCH THAT AN OUTPUT PULSE APPEARS ACROSS IT WHEN THE THIRD TRANSISTOR IS CONDUCTING.
References Cited (Backward Citations)
US3157864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |