Patent US3295074A successfully refreshed from Google Patents.
US3295074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Y-junction strip line switchable circulator contained within a hollow low magnetic permeability cylindrical tube
Assignee: Ferrotec Inc
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Filing: 1965-03-05
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Granted: 1966-12-27
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Expires: 1985-03-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:07
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/32; H01P1/38; H01P1/383; H01P1/387
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A CIRCULATOR COMPRISING: (1) A HOLLOW TUBE OF LOW MAGNETIC PERMEABILITY; (2) MEANS IN THE TUBE CONSTITUTING THE GROUND PLANES OF A STRIP TRANSMISSION LINE; (3) A MEMBER CONSTITUTING THE CENTER CONDUCTOR OF THE STRIP TRANSMISSION LINE, THE CENTER CONDUCTOR HAVING A PLURALITY OF ARMS SYMMETRICAL ABOUT AND EXTENDING FROM A CENTRAL PORTION; (4) A FERRIMAGNETIC MEDIUM FILLING THE SPACE BETWEEN THE CENTER CONDUCTOR AND THE GROUND PLANES; (5) AN ELECTROMAGNETIC COIL CLOSELY SURROUNDING THE TUBE AND ENCIRCLING THE FERRMAGNETICALLY FILLED STRIP TRANSMISSION LINE; (6) MEANS FOR CONCENTRATING ACROSS THE GROUND PLANES IN THE TUBE THE MAGNETIC FIELD ESTABLISHED BY AN ELECTRICAL CURRENT FLOWING IN THE ELECTROMAGNETIC COIL; (7) AND MEANS EXTERNAL OF THE TUBE PROVIDING ELECTRICAL COUPLING TO THE CENTER CONDUCTOR OF THE STRIP TRANSMISSION LINE.
Claim 2
Dependent Claim
127 words
A CIRCULATOR COMPRISING: (1) A HOLLOW TUBE OF LOW MAGNETIC PERMEABILITY; (2) MEANS IN THE TUBE CONSTITUTING THE GROUND PLANES OF A STRIP TRANSMISSION LINE; (3) A MEMBER CONSTITUTING THE CENTER CONDUCTOR OF THE STRIP TRANSMISSION LINE, THE CENTER CONDUCTOR HAVING A PLURALITY OF ARMS SYMMETRICAL ABOUT AND EXTENDING FROM A CENTRAL PORTION; (4) A FERRIMAGNETIC MEDIUM FILLING THE SPACE BETWEEN THE CENTER CONDUCTOR AND THE GROUND PLANES; (5) AN ELECTROMAGNETIC COIL CLOSELY SURROUNDING THE TUBE AND ENCIRCLING THE FERRMAGNETICALLY FILLED STRIP TRANSMISSION LINE; (6) MEANS FOR CONCENTRATING ACROSS THE GROUND PLANES IN THE TUBE THE MAGNETIC FIELD ESTABLISHED BY AN ELECTRICAL CURRENT FLOWING IN THE ELECTROMAGNETIC COIL; (7) AND MEANS EXTERNAL OF THE TUBE PROVIDING ELECTRICAL COUPLING TO THE CENTER CONDUCTOR OF THE STRIP TRANSMISSION LINE.
References Cited (Backward Citations)
US3185941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |