US3199055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave rotary joint
Assignee: Cutler Hammer Inc
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Filing: 1963-10-30
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Granted: 1965-08-03
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Expires: 1983-10-30
Abstract
No abstract record available.
Inventors
- 👤 Henry S Keen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:08
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/06; H01P1/062; H01P1/066; H01P1/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A MICROWAVE ROTARY JOINT, INCLUDING TWO HOLLOW BODY MEMBERS EACH HAVING A CONDUCTIVE INTERIOR SURFACE IN SUBSTANTIALLY THE FORM OF THAT OF A FIGURE OF REVOLUTION IF A RE-ENTRANT GENERATRIX ABOUT AN AXIS AND EACH HAVING AN OPENING BOUNDED BY TWO RESPECTIVE CIRCULAR EDGES EACH OF WHICH IS CENTERED ON SAID AXIS AND LIES IN A PLANE PERPENDICULAR TO SAID AXIS, SAID OPENINGS BEING JUXTAPOSED AND CONFORMAL TO EACH OTHER, MEANS ELECTRICALLY COUPLING THE RESPECTIVE ADJACENT CIRCULAR EDGES OF SAID OPENINGS TOGETHER, EFFECTIVELY JOINING SAID INTERIOR SURFACES TO PROVIDE A RESONANT CAVITY IN THE FORM OF A TRANSMISSION LINE SHORT CIRCUITED AT ITS ENDS AND HAVING AN ELECTRICAL LENGTH OF ONE-HALF WAVELENGTH AT A DESIGN CENTER FREQUENCY, EACH OF SAID MEMBERS INCLUDING A DISTRIBUTION SYSTEM DISPOSED AT LEAST IN PART WITHIN SAID RESONANT CAVITY AND CONNECTING A RESPECTIVE EXTERNAL TRANSMISSION LINE IN SUBSTANTIALLY IDENTICAL RELATIONSHIP TO A PLURALITY OF FEED POINTS IN SAID CAVITY, SAID FEED POINTS BEING IN CIRCULAR SYMMETRY ABOUT SAID AXIS AND SEPARATED BY ARCUATE INTERVALS OF LESS THAN ONE-HALF WAVELENGTH.
Claim 2
Dependent Claim
174 words
A MICROWAVE ROTARY JOINT, INCLUDING TWO HOLLOW BODY MEMBERS EACH HAVING A CONDUCTIVE INTERIOR SURFACE IN SUBSTANTIALLY THE FORM OF THAT OF A FIGURE OF REVOLUTION IF A RE-ENTRANT GENERATRIX ABOUT AN AXIS AND EACH HAVING AN OPENING BOUNDED BY TWO RESPECTIVE CIRCULAR EDGES EACH OF WHICH IS CENTERED ON SAID AXIS AND LIES IN A PLANE PERPENDICULAR TO SAID AXIS, SAID OPENINGS BEING JUXTAPOSED AND CONFORMAL TO EACH OTHER, MEANS ELECTRICALLY COUPLING THE RESPECTIVE ADJACENT CIRCULAR EDGES OF SAID OPENINGS TOGETHER, EFFECTIVELY JOINING SAID INTERIOR SURFACES TO PROVIDE A RESONANT CAVITY IN THE FORM OF A TRANSMISSION LINE SHORT CIRCUITED AT ITS ENDS AND HAVING AN ELECTRICAL LENGTH OF ONE-HALF WAVELENGTH AT A DESIGN CENTER FREQUENCY, EACH OF SAID MEMBERS INCLUDING A DISTRIBUTION SYSTEM DISPOSED AT LEAST IN PART WITHIN SAID RESONANT CAVITY AND CONNECTING A RESPECTIVE EXTERNAL TRANSMISSION LINE IN SUBSTANTIALLY IDENTICAL RELATIONSHIP TO A PLURALITY OF FEED POINTS IN SAID CAVITY, SAID FEED POINTS BEING IN CIRCULAR SYMMETRY ABOUT SAID AXIS AND SEPARATED BY ARCUATE INTERVALS OF LESS THAN ONE-HALF WAVELENGTH.
References Cited (Backward Citations)
US2975382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |