US3454789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse height sensor
Assignee: United States Department of the Navy
•
Filing: 1966-01-27
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Granted: 1969-07-08
•
Expires: 1986-01-27
Abstract
No abstract record available.
Inventors
- 👤 Howard V Tyler
- 👤 Richard L Gowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:38
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
THE COMBINATION IN A SYSTEM FOR GENERATING A STEADY DIRECT CURRENT POTENTIAL PROPORTIONAL TO THE PEAK AMPLITUDE OF A SERIES OF PULSES, SAID SYSTEM COMPRISING; A STORAGE CONDENSER, AN AMPLIFIER HAVING A CONTROL ELECTRODE CONNECTED TO THE PULSE SOURCE TO BE MEASURED, AN OUTPUT ELECTRODE COUPLED TO CHARGE SAID CONDENSER, AND A COMMON ELECTRODE, TO ZERO THE CHARGE OF THE CONDENSER. A FIELD EFFECT TRANSISTOR WITH A GATE, A DRAIN, AND A SOURCE ELECTRODE, SAID GATE ELECTRODE BEING CONNECTED TO ONE TERMINAL OF SAID STORAGE CONDENSER, A DIODE AND A LOAD RESISTOR CONNECTED IN SERIES BETWEEN SAID SOURCE ELECTRODE AND THE OTHER TERMINAL OF SAID CONDENSER SO THAT THE JUNCTION OF THE DIODE AND RESISTOR IS REPRESENTATIVE OF THE VOLTAGE ACROSS SAID CONDENSER, A CONNECTION FROM SAID JUNCTION AND THE COMMON ELECTRODE OF SAID AMPLIFIER FOR ESTABLISHING A THRESHOLD BIAS ABOVE WHICH A PULSE MUST RISE TO UNBLOCK THE AMPLIFIER, AND A TRANSISTOR SWITCH CONNECTED ACROSS SAID TERMINALS OF SAID STORAGE CONDENSER FOR REPETITIOUSLY DISCHARGING TO ZERO THE CHARGE OF THE CONDENSER.
Claim 2
Dependent Claim
172 words
THE COMBINATION IN A SYSTEM FOR GENERATING A STEADY DIRECT CURRENT POTENTIAL PROPORTIONAL TO THE PEAK AMPLITUDE OF A SERIES OF PULSES, SAID SYSTEM COMPRISING; A STORAGE CONDENSER, AN AMPLIFIER HAVING A CONTROL ELECTRODE CONNECTED TO THE PULSE SOURCE TO BE MEASURED, AN OUTPUT ELECTRODE COUPLED TO CHARGE SAID CONDENSER, AND A COMMON ELECTRODE, TO ZERO THE CHARGE OF THE CONDENSER. A FIELD EFFECT TRANSISTOR WITH A GATE, A DRAIN, AND A SOURCE ELECTRODE, SAID GATE ELECTRODE BEING CONNECTED TO ONE TERMINAL OF SAID STORAGE CONDENSER, A DIODE AND A LOAD RESISTOR CONNECTED IN SERIES BETWEEN SAID SOURCE ELECTRODE AND THE OTHER TERMINAL OF SAID CONDENSER SO THAT THE JUNCTION OF THE DIODE AND RESISTOR IS REPRESENTATIVE OF THE VOLTAGE ACROSS SAID CONDENSER, A CONNECTION FROM SAID JUNCTION AND THE COMMON ELECTRODE OF SAID AMPLIFIER FOR ESTABLISHING A THRESHOLD BIAS ABOVE WHICH A PULSE MUST RISE TO UNBLOCK THE AMPLIFIER, AND A TRANSISTOR SWITCH CONNECTED ACROSS SAID TERMINALS OF SAID STORAGE CONDENSER FOR REPETITIOUSLY DISCHARGING TO ZERO THE CHARGE OF THE CONDENSER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |