Patent US3286266A successfully refreshed from Google Patents.
US3286266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring biased actuator to move radar reflector from stowed to operative position
Assignee: National Research Council Canada
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Filing: 1963-04-01
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Granted: 1966-11-15
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 James C Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:22
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A RADAR ANTENNA ARRAY COMPRISING (A) A REFLECTOR, (B) MEANS MOUNTING SAID REFLECTOR ON A FRAME FOR PIVOTING ABOUT A HORIZONTAL AXIS BETWEEN AN ERECT, OPERATING POSITION AND A LOWERED, STOWED POSITION, (C) AN ACTUATOR EXTENDING BETWEEN SAID REFLECTOR AND SAID FRAME FOR CONTROLLING PIVOTAL MOVEMENT OF SAID REFLECTOR ABOUT SAID AXIS, (D) A STOP FIXED ON SAID FRAME FOR CO-OPERATION WITH AN ABUTMENT SURFACE ON THE REFLECTOR TO DEFINE SAID ERECT POSITION, (E) SPRING MEANS CONNECTING SAID ACTUATOR TO SAID REFLECTOR, (F) MEANS FOR ENERGISING SAID ACTUATOR TO MOVE SAID REFLECTOR INTO ERECT POSITION TO BRING SAID ABUTMENT SURFACE INTO ENGAGEMENT WITH SAID STOP AND THEREAFTER TO STRESS SAID SPRING MEANS, (G) AND LIMIT MEANS FOR DE-ENERGIZING SAID ACTUATOR ONLY AFTER TRAVEL THEREOF A DISTANCE SUFFICIENT BOTH TO BRING ABOUT SAID ENGAGEMENT AND TO STRESS SAID SPRING MEANS.
Claim 2
Dependent Claim
139 words
A RADAR ANTENNA ARRAY COMPRISING (A) A REFLECTOR, (B) MEANS MOUNTING SAID REFLECTOR ON A FRAME FOR PIVOTING ABOUT A HORIZONTAL AXIS BETWEEN AN ERECT, OPERATING POSITION AND A LOWERED, STOWED POSITION, (C) AN ACTUATOR EXTENDING BETWEEN SAID REFLECTOR AND SAID FRAME FOR CONTROLLING PIVOTAL MOVEMENT OF SAID REFLECTOR ABOUT SAID AXIS, (D) A STOP FIXED ON SAID FRAME FOR CO-OPERATION WITH AN ABUTMENT SURFACE ON THE REFLECTOR TO DEFINE SAID ERECT POSITION, (E) SPRING MEANS CONNECTING SAID ACTUATOR TO SAID REFLECTOR, (F) MEANS FOR ENERGISING SAID ACTUATOR TO MOVE SAID REFLECTOR INTO ERECT POSITION TO BRING SAID ABUTMENT SURFACE INTO ENGAGEMENT WITH SAID STOP AND THEREAFTER TO STRESS SAID SPRING MEANS, (G) AND LIMIT MEANS FOR DE-ENERGIZING SAID ACTUATOR ONLY AFTER TRAVEL THEREOF A DISTANCE SUFFICIENT BOTH TO BRING ABOUT SAID ENGAGEMENT AND TO STRESS SAID SPRING MEANS.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |