US3208066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doppler system ramp test set
Assignee: Bendix Corp
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Filing: 1962-09-20
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Granted: 1965-09-21
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Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 Burton L Cordry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:25
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4004; G01S7/4021; G01S7/4052; G01S7/4082; G01S7/4086
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
A TEST SET FOR A SEQUENTIAL X-BEAM DOPPLER SYSTEM COMPRISING FOUR HORN ANTENNAE MOUNTED IN FIXED POSITION FOR RECEIVING, RESPECTIVELY, THE ENERGY TRANSMITTED ON INDIVIDUAL ANTENNA BEAMS BY SAID SYSTEM; A PAIR OF COUPLERS FOR COMBINING THE ENERGY RECEIVED BY DIAGONAL PAIRS OF SAID HORNS; A THIRD COUPLER FOR COMBINING THE COMBINED OUTPUTS OF SAID PAIR OF COUPLERS; A TRANSMISSION PATH COUPLED TO THE OUTPUT OF SAID THIRD COUPLER, SAID PATH INCLUDING DELAY MEANS, ATTENUATOR MEANS, A PHASE SHIFT MEANS AND A SELECTIVE TRANSMISSION REFLECTION TERMINATION DEVICE; A MATCHED LOAD TERMINATING THE TRANSMISSION PATH IN SAID DEVICE; AND MEANS FOR OPERATING SAID DEVICE TO VARY THE REFLECTION CHARACTERISTIC THEREOF AT TWO FREQUENCIES ALTERNATELY APPLIED IN SYNCHRONISM WITH THE OUTPUTS OF SAID PAIR OF COUPLERS, RESPECTIVELY, FOR MODULATING ENERGY REFLECTED ALONG SAID PATH CORRESPONDING TO A PREDETERMINED GROUND SPEED AND DRIFT ANGLE.
Claim 2
Dependent Claim
141 words
A TEST SET FOR A SEQUENTIAL X-BEAM DOPPLER SYSTEM COMPRISING FOUR HORN ANTENNAE MOUNTED IN FIXED POSITION FOR RECEIVING, RESPECTIVELY, THE ENERGY TRANSMITTED ON INDIVIDUAL ANTENNA BEAMS BY SAID SYSTEM; A PAIR OF COUPLERS FOR COMBINING THE ENERGY RECEIVED BY DIAGONAL PAIRS OF SAID HORNS; A THIRD COUPLER FOR COMBINING THE COMBINED OUTPUTS OF SAID PAIR OF COUPLERS; A TRANSMISSION PATH COUPLED TO THE OUTPUT OF SAID THIRD COUPLER, SAID PATH INCLUDING DELAY MEANS, ATTENUATOR MEANS, A PHASE SHIFT MEANS AND A SELECTIVE TRANSMISSION REFLECTION TERMINATION DEVICE; A MATCHED LOAD TERMINATING THE TRANSMISSION PATH IN SAID DEVICE; AND MEANS FOR OPERATING SAID DEVICE TO VARY THE REFLECTION CHARACTERISTIC THEREOF AT TWO FREQUENCIES ALTERNATELY APPLIED IN SYNCHRONISM WITH THE OUTPUTS OF SAID PAIR OF COUPLERS, RESPECTIVELY, FOR MODULATING ENERGY REFLECTED ALONG SAID PATH CORRESPONDING TO A PREDETERMINED GROUND SPEED AND DRIFT ANGLE.
Claim 3
Dependent Claim
135 words
A TEST SET FOR A MULTI-BEAM DOPPLER SYSTEM COMPRISING A PORTABLE CARRIAGE CONTAINING SAID TEST SET AND ADAPTED TO BE LOCATED BENEATH AN AIRCRAFT; AN ANTENNA PLATFORM ON SAID CARRIAGE; MEANS FOR ELEVATING AND LOCATING SAID PLATFORM IN A FIXED PREDETERMINED POSITION RELATIVE TO THE ANTENNA OF SAID SYSTEM, SAID ELEVATING MEANS INCLUDING SPRING LOADING OF SAID PLATFORM AGAINST THE LOCATING MEANS AND SAID AIRCRAFT WITH SUFFICIENT RANGE OF VERTICAL TRAVEL TO FOLLOW VARIATIONS IN VERTICAL POSITION OF SAID AIRCRAFT WITHOUT ALTERING SAID PREDETERMINED POSITION RELATIVE TO SAID ANTENNA, MEANS ON SAID PLATFORM FOR RECEIVING ENERGY FROM ALL OF SAID BEAMS, AND MEANS ON SAID CARRIAGE FOR ATTENUATING, DELAYING AND MODULATING ENERGY RECEIVED FROM THE BEAMS OF THE ANTENNA OF SAID SYSTEM, AND RADIATING THE ATTENUATED, DELAYED AND MODULATED ENERGY BACK ALONG SAID BEAMS, RESPECTIVELY.
Claim 4
Dependent Claim
135 words
A TEST SET FOR A MULTI-BEAM DOPPLER SYSTEM COMPRISING A PORTABLE CARRIAGE CONTAINING SAID TEST SET AND ADAPTED TO BE LOCATED BENEATH AN AIRCRAFT; AN ANTENNA PLATFORM ON SAID CARRIAGE; MEANS FOR ELEVATING AND LOCATING SAID PLATFORM IN A FIXED PREDETERMINED POSITION RELATIVE TO THE ANTENNA OF SAID SYSTEM, SAID ELEVATING MEANS INCLUDING SPRING LOADING OF SAID PLATFORM AGAINST THE LOCATING MEANS AND SAID AIRCRAFT WITH SUFFICIENT RANGE OF VERTICAL TRAVEL TO FOLLOW VARIATIONS IN VERTICAL POSITION OF SAID AIRCRAFT WITHOUT ALTERING SAID PREDETERMINED POSITION RELATIVE TO SAID ANTENNA, MEANS ON SAID PLATFORM FOR RECEIVING ENERGY FROM ALL OF SAID BEAMS, AND MEANS ON SAID CARRIAGE FOR ATTENUATING, DELAYING AND MODULATING ENERGY RECEIVED FROM THE BEAMS OF THE ANTENNA OF SAID SYSTEM, AND RADIATING THE ATTENUATED, DELAYED AND MODULATED ENERGY BACK ALONG SAID BEAMS, RESPECTIVELY.
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |