US3328797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar system
Assignee: Thales Nederland BV
•
Filing: 1965-05-19
•
Granted: 1967-06-27
•
Expires: 1985-05-19
Abstract
No abstract record available.
Inventors
- 👤 Jorna Ype
- 👤 Cornelis Augustinus Va Staaden
- 👤 Ferwerda Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:06
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/87; G01S13/02; G01S13/06; G01S13/42; G01S13/426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
324 words
A RADAR SYSTEM FOR DETERMINING THE AZIMUTH, RANGE AND ELEVATION OF TARGETS WITHIN THE MEASURING RANGE OF SAID SYSTEM, COMPRISING A FIRST CONTINUOUSLY OPERATING RADAR APPARATUS HAVING A FIRST AERIAL ROTATING ABOUT A VERTICAL AXIS OF ROTATION FOR PRODUCING SIGNALS CORRESPONDING TO THE RANGE AND AZIMUTH OF SAID TARGETS, AN AZIMUTH COMPARISON DEVICE INCLUDING MEANS FOR STORING SIGNALS CORRESPONDING TO THE POSITIONS OF SAID TARGETS, MEANS FOR APPLYING SAID SIGNALS PRODUCED BY SAID FIRST RADAR APPARATUS TO SAID COMPARISON DEVICE FOR STORAGE IN SAID STORING MEANS, A SECOND RADAR APPARATUS HAVING A SECOND AERIAL, MEANS FOR CONTINUOUSLY ROTATING SAID SECOND AERIAL ABOUT AN AXIS HAVING THE SAME ORIENTATION AS SAID AXIS OF SAID FIRST AERIAL, MEANS FOR PRODUCING AN AZIMUTH SIGNAL CORRESPONDING TO THE AZIMUTH DIRECTION OF SAID SECOND AERIAL, AND MEANS FOR APPLYING SAID LAST MENTIONED SIGNAL TO SAID AZIMUTH COMPARISON DEVICE, SAID DEVICE FURTHER COMPRISING MEANS RESPONSIVE TO A CORRESPONDENCE BETWEEN SAID AZIMUTH SIGNAL AND A SIGNAL STORED IN SAID STORING MEANS RELATING TO THE AZIMUTH OF A TARGET FOR PRODUCING A RELEASE SIGNAL, AND MEANS FOR APPLYING SAID RELEASE SIGNAL TO SAID SECOND RADAR APPARATUS, SAID SECOND RADAR APPARATUS FURTHER COMPRISING MEANS RESPONSIVE TO EACH SAID RELEASE SIGNAL FOR ELECTRONICALLY SCANNING ITS BEAM IN AN ELEVATION DIRECTION TO PRODUCE SIGNALS RELATED TO THE ELEVATION AND RANGE OF TARGETS AT THE AZIMUTH DIRECTION OF SAID SECOND AERIAL, AND MEANS FOR APPLYING SAID LAST MENTIONED SIGNALS TO SAID COMPARISON DEVICE FOR STORAGE IN SAID STORING MEANS, AT LEAST ONE OF SAID AERIALS HAVING AN OBLIQUE POSITION WITH RESPECT TO ITS AXIS OF ROTATION WHEREBY THE BEAM EMITTED BY SAID SECOND AERIAL DURING EACH SAID ELEVATION SCAN SCANS THAT PART OF SPACE WHICH CORRESPONDS TO THE PART OF SPACE COVERED BY THE BEAM OF SAID FIRST AERIAL AT THE INSTANT OF DETECTION OF THE TARGET CORRESPONDING TO THE STORED SIGNAL THAT RESULTED IN THE PRODUCTION OF THE RELEASE SIGNAL CORRESPONDING TO THE ELEVATION SCAN.
Claim 2
Dependent Claim
324 words
A RADAR SYSTEM FOR DETERMINING THE AZIMUTH, RANGE AND ELEVATION OF TARGETS WITHIN THE MEASURING RANGE OF SAID SYSTEM, COMPRISING A FIRST CONTINUOUSLY OPERATING RADAR APPARATUS HAVING A FIRST AERIAL ROTATING ABOUT A VERTICAL AXIS OF ROTATION FOR PRODUCING SIGNALS CORRESPONDING TO THE RANGE AND AZIMUTH OF SAID TARGETS, AN AZIMUTH COMPARISON DEVICE INCLUDING MEANS FOR STORING SIGNALS CORRESPONDING TO THE POSITIONS OF SAID TARGETS, MEANS FOR APPLYING SAID SIGNALS PRODUCED BY SAID FIRST RADAR APPARATUS TO SAID COMPARISON DEVICE FOR STORAGE IN SAID STORING MEANS, A SECOND RADAR APPARATUS HAVING A SECOND AERIAL, MEANS FOR CONTINUOUSLY ROTATING SAID SECOND AERIAL ABOUT AN AXIS HAVING THE SAME ORIENTATION AS SAID AXIS OF SAID FIRST AERIAL, MEANS FOR PRODUCING AN AZIMUTH SIGNAL CORRESPONDING TO THE AZIMUTH DIRECTION OF SAID SECOND AERIAL, AND MEANS FOR APPLYING SAID LAST MENTIONED SIGNAL TO SAID AZIMUTH COMPARISON DEVICE, SAID DEVICE FURTHER COMPRISING MEANS RESPONSIVE TO A CORRESPONDENCE BETWEEN SAID AZIMUTH SIGNAL AND A SIGNAL STORED IN SAID STORING MEANS RELATING TO THE AZIMUTH OF A TARGET FOR PRODUCING A RELEASE SIGNAL, AND MEANS FOR APPLYING SAID RELEASE SIGNAL TO SAID SECOND RADAR APPARATUS, SAID SECOND RADAR APPARATUS FURTHER COMPRISING MEANS RESPONSIVE TO EACH SAID RELEASE SIGNAL FOR ELECTRONICALLY SCANNING ITS BEAM IN AN ELEVATION DIRECTION TO PRODUCE SIGNALS RELATED TO THE ELEVATION AND RANGE OF TARGETS AT THE AZIMUTH DIRECTION OF SAID SECOND AERIAL, AND MEANS FOR APPLYING SAID LAST MENTIONED SIGNALS TO SAID COMPARISON DEVICE FOR STORAGE IN SAID STORING MEANS, AT LEAST ONE OF SAID AERIALS HAVING AN OBLIQUE POSITION WITH RESPECT TO ITS AXIS OF ROTATION WHEREBY THE BEAM EMITTED BY SAID SECOND AERIAL DURING EACH SAID ELEVATION SCAN SCANS THAT PART OF SPACE WHICH CORRESPONDS TO THE PART OF SPACE COVERED BY THE BEAM OF SAID FIRST AERIAL AT THE INSTANT OF DETECTION OF THE TARGET CORRESPONDING TO THE STORED SIGNAL THAT RESULTED IN THE PRODUCTION OF THE RELEASE SIGNAL CORRESPONDING TO THE ELEVATION SCAN.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |