US3105939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision time delay generator
Assignee: CMC Electronics Inc
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Filing: 1960-07-21
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Granted: 1963-10-01
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Expires: 1980-07-21
Abstract
No abstract record available.
Inventors
- 👤 Onno Peter
- 👤 John F Haberl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:49
CPC Classifications
G; G04; G04F; G04F5/00; H; H03; H03K; H03K17/00; H03K17/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A TIME DELAY CIRCUIT COMPRISING, IN COMBINATION, A RESISTANCE CAPACITY NETWORK HAVING FIRST AND SECOND TERMINALS AND CONSTITUTED OF A FIRST BRANCH COMPRISING A FIRST RESISTANCE OF VALUE R1 AND A FIRST CAPACITANCE OF VALUE C1 SERIALLY CONNECTED IN THAT ORDER BETWEEN SAID FIRST AND SECOND TERMINALS, A SECOND BRANCH COMPRISING A SECOND CAPACITANCE OF VALUE C2 AND A SECOND RESISTANCE OF VALUE R2 SERIALLY CONNECTED IN THAT ORDER BETWEEN SAID FIRST AND SECOND TERMINALS, A THIRD RESISTANCE OF VALUE R3 CONNECTED IN PARALLEL WITH C2, THE VALUES C2, R2 AND R3 BEING SUCH AS TO SATISFY THE RELATIONS C2R2=2R1C1, AND R3=3R2: A VOLTAGE COMPARATOR HAVING FIRST AND SECOND INPUTS; MEANS CONNECTING THE FIRST INPUT OF SAID VOLTAGE COMPARATOR BETWEEN SAID SECOND TERMINAL AND THE JUNCTION OF SAID FIRST RESISTANCE AND SAID FIRST CAPACITANCE; MEANS CONNECTING THE SECOND INPUT OF SAID VOLTAGE COMPARATOR BETWEEN SAID SECOND TERMINAL AND A POINT ON SAID SECOND RESISTANCE; A LOW IMPEDANCE WAVEFORM GENERATOR PROVIDING A VOLTAGE WAVE HAVING A STEPPED WAVEFRONT FOLLOWED BY A SUBSTANTIALLY FLAT PORTION; MEANS TO APPLY THE OUTPUT OF SAID GENERATOR BETWEEN SAID FIRST AND SECOND TERMINALS; AND UTILIZATION MEANS FED FROM SAID VOLTAGE COMPARATOR.
Claim 2
Dependent Claim
195 words
A TIME DELAY CIRCUIT COMPRISING, IN COMBINATION, A RESISTANCE CAPACITY NETWORK HAVING FIRST AND SECOND TERMINALS AND CONSTITUTED OF A FIRST BRANCH COMPRISING A FIRST RESISTANCE OF VALUE R1 AND A FIRST CAPACITANCE OF VALUE C1 SERIALLY CONNECTED IN THAT ORDER BETWEEN SAID FIRST AND SECOND TERMINALS, A SECOND BRANCH COMPRISING A SECOND CAPACITANCE OF VALUE C2 AND A SECOND RESISTANCE OF VALUE R2 SERIALLY CONNECTED IN THAT ORDER BETWEEN SAID FIRST AND SECOND TERMINALS, A THIRD RESISTANCE OF VALUE R3 CONNECTED IN PARALLEL WITH C2, THE VALUES C2, R2 AND R3 BEING SUCH AS TO SATISFY THE RELATIONS C2R2=2R1C1, AND R3=3R2: A VOLTAGE COMPARATOR HAVING FIRST AND SECOND INPUTS; MEANS CONNECTING THE FIRST INPUT OF SAID VOLTAGE COMPARATOR BETWEEN SAID SECOND TERMINAL AND THE JUNCTION OF SAID FIRST RESISTANCE AND SAID FIRST CAPACITANCE; MEANS CONNECTING THE SECOND INPUT OF SAID VOLTAGE COMPARATOR BETWEEN SAID SECOND TERMINAL AND A POINT ON SAID SECOND RESISTANCE; A LOW IMPEDANCE WAVEFORM GENERATOR PROVIDING A VOLTAGE WAVE HAVING A STEPPED WAVEFRONT FOLLOWED BY A SUBSTANTIALLY FLAT PORTION; MEANS TO APPLY THE OUTPUT OF SAID GENERATOR BETWEEN SAID FIRST AND SECOND TERMINALS; AND UTILIZATION MEANS FED FROM SAID VOLTAGE COMPARATOR.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |