Patent US3217320A successfully refreshed from Google Patents.
US3217320A
Expired / Lapsed
US
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Manual probe tracking system
Assignee: Individual
•
Filing: 1963-10-21
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Granted: 1965-11-09
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Expires: 1983-10-21
Abstract
No abstract record available.
Inventors
- 👤 Perry John Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:52
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/66; G01S13/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
IN A RANGE TRACKING RADAR SYSTEM A MANUAL-AID FOR THE INSTANTANEOUS AND ACCURATE POSITIONING OF RADAR TRACKING GATE SIGNALS AT ANY POINT WITHIN A SELECTED RANGE SEGMENT UPON OPERATOR COMMAND COMPRISING IN COMBINATION WITH THE INDICATOR SCOPE OF THE TRACKING RADAR SYSTEM; (A) A RESISTANCE STRIP MOUNTED ON A TRANSPARENT PLATE DIRECTLY IN FRONT OF A RADAR INDICATOR SCOPE AND POSITIONED JUST BELOW THE TRACE ON SAID SCOPE, (B) A SOURCE OF D.C. VOLTAGE ACROSS WHICH SAID RESISTANCE STRIPS IS CONNECTED AND WHICH PROVIDES A VOLTAGE DISTRIBUTION ALONG SAID STRIP DIRECTLY PROPORTIONAL TO THE POSITION OF A TRACKING GATE RANGE INDICATED ON THE SCOPE TRACE, (C) MEANS FOR ADJUSTING THE VOLTAGE DISTRIBUTION ALONG SAID RESISTANCE STRIP TO MATCH THE EXACT VOLTAGE WITHIN SAID RADAR SYSTEM WHICH POSITIONS THE TRACKING GATE WITHIN SAID SELECTED RANGE SEGMENT ON THE INDICATOR SCOPE, (D) MEANS FOR INTRODUCING A CONTROL VOLTAGE TO MOVE THE TRACKING GATE INDICATED ON THE SCOPE TRACE TO THE POSITION OF SAID RANGE TRACKING SIGNAL INDICATED ON SAID SCOPE TRACE, (E) SAID CONTROL VOLTAGE BEING DERIVED FROM A PARTICULAR POINT ON SAID RESISTANCE STRIP WHICH CORRESPONDS TO THE POSITION OF SAID RANGE TRACKING SIGNAL INDICATED ON THE SCOPE TRACE.
Claim 2
Dependent Claim
198 words
IN A RANGE TRACKING RADAR SYSTEM A MANUAL-AID FOR THE INSTANTANEOUS AND ACCURATE POSITIONING OF RADAR TRACKING GATE SIGNALS AT ANY POINT WITHIN A SELECTED RANGE SEGMENT UPON OPERATOR COMMAND COMPRISING IN COMBINATION WITH THE INDICATOR SCOPE OF THE TRACKING RADAR SYSTEM; (A) A RESISTANCE STRIP MOUNTED ON A TRANSPARENT PLATE DIRECTLY IN FRONT OF A RADAR INDICATOR SCOPE AND POSITIONED JUST BELOW THE TRACE ON SAID SCOPE, (B) A SOURCE OF D.C. VOLTAGE ACROSS WHICH SAID RESISTANCE STRIPS IS CONNECTED AND WHICH PROVIDES A VOLTAGE DISTRIBUTION ALONG SAID STRIP DIRECTLY PROPORTIONAL TO THE POSITION OF A TRACKING GATE RANGE INDICATED ON THE SCOPE TRACE, (C) MEANS FOR ADJUSTING THE VOLTAGE DISTRIBUTION ALONG SAID RESISTANCE STRIP TO MATCH THE EXACT VOLTAGE WITHIN SAID RADAR SYSTEM WHICH POSITIONS THE TRACKING GATE WITHIN SAID SELECTED RANGE SEGMENT ON THE INDICATOR SCOPE, (D) MEANS FOR INTRODUCING A CONTROL VOLTAGE TO MOVE THE TRACKING GATE INDICATED ON THE SCOPE TRACE TO THE POSITION OF SAID RANGE TRACKING SIGNAL INDICATED ON SAID SCOPE TRACE, (E) SAID CONTROL VOLTAGE BEING DERIVED FROM A PARTICULAR POINT ON SAID RESISTANCE STRIP WHICH CORRESPONDS TO THE POSITION OF SAID RANGE TRACKING SIGNAL INDICATED ON THE SCOPE TRACE.
References Cited (Backward Citations)
US3158860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |