Patent US3003260A successfully refreshed from Google Patents.
US3077598A
Expired / Lapsed
US
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Marker generator
Assignee: Individual
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Filing: 1959-10-29
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Granted: 1963-02-12
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Expires: 1979-10-29
Abstract
No abstract record available.
Inventors
- 👤 Carl W Jackle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:58
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN AN AIRCRAFT, A SYSTEM OPERABLE TO MONITOR THE PERFORMANCE OF AIRBORNE DIRECTION FINDING EQUIPMENT COMPRISING: A DIRECTION FINDER RECEIVER COUPLED TO A ROTATABLE ANTENNA OPERABLE TO PROVIDE AN INTERCEPT SIGNAL, A HEADING PULSE GENERATOR COUPLED TO SAID ANTENNA OPERABLE TO GENERATE A REFERENCE PULSE AT THE TIME THE AXIS OF THE ANTENNA IS ALIGNED WITH THE AIRCRAFT HEADING, A COMPASS PULSE GENERATOR COUPLED TO THE COMPASS SYSTEM OF THE AIRCRAFT OPERABLE TO GENERATE A PULSE DISPLACED IN TIME WITH RESPECT TO SAID REFERENCE PULSE IN ACCORDANCE WITH THE TRUE HEADING OF THE AIRCRAFT, A LOAD IMPEDANCE, CIRCUIT MEANS COUPLING SAID REFERENCE AND COMPASS PULSES IN COMMON WITH THE INTERCEPT SIGNAL FROM SAID RECEIVER TO SAID LOAD IMPEDANCE, AND RECORDER-DISPLAY MEANS COUPLED TO BE ENERGIZED BY THE SIGNALS APPLIED TO SAID LOAD IMPEDANCE.
Claim 2
Dependent Claim
133 words
IN AN AIRCRAFT, A SYSTEM OPERABLE TO MONITOR THE PERFORMANCE OF AIRBORNE DIRECTION FINDING EQUIPMENT COMPRISING: A DIRECTION FINDER RECEIVER COUPLED TO A ROTATABLE ANTENNA OPERABLE TO PROVIDE AN INTERCEPT SIGNAL, A HEADING PULSE GENERATOR COUPLED TO SAID ANTENNA OPERABLE TO GENERATE A REFERENCE PULSE AT THE TIME THE AXIS OF THE ANTENNA IS ALIGNED WITH THE AIRCRAFT HEADING, A COMPASS PULSE GENERATOR COUPLED TO THE COMPASS SYSTEM OF THE AIRCRAFT OPERABLE TO GENERATE A PULSE DISPLACED IN TIME WITH RESPECT TO SAID REFERENCE PULSE IN ACCORDANCE WITH THE TRUE HEADING OF THE AIRCRAFT, A LOAD IMPEDANCE, CIRCUIT MEANS COUPLING SAID REFERENCE AND COMPASS PULSES IN COMMON WITH THE INTERCEPT SIGNAL FROM SAID RECEIVER TO SAID LOAD IMPEDANCE, AND RECORDER-DISPLAY MEANS COUPLED TO BE ENERGIZED BY THE SIGNALS APPLIED TO SAID LOAD IMPEDANCE.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |