Patent US3100288A successfully refreshed from Google Patents.
US3100288A
Expired / Lapsed
US
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Ferrite isolator utilizing aligned crystals with a specific anisotropy constant
Assignee: Raytheon Co
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Filing: 1961-01-05
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Granted: 1963-08-06
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Expires: 1981-01-05
Abstract
No abstract record available.
Inventors
- 👤 Ernst F R A Schlocmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:02
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/32; H01P1/36; H01P1/365
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN COMBINATION, A RECTANGULAR WAVEGUIDE FOR PROPAGATING ENERGY IN A DIRECTION ALONG THE LONGITUDINAL AXIS OF SAID WAVEGUIDE, A FERRITE MATERIAL POSITIONED WITHIN SAID WAVEGUIDE, MEANS FOR APPLYING A D.-C. MAGNETIC FIELD IN A SELECTED DIRECTION PERPENDICULAR TO THE DIRECTION OF PROPAGATION, SAID MATERIAL COMPRISING A PLURALITY OF CUBIC CRYSTALS HAVING A POSITIVE ANISOTROPY CONSTANT, THE AXES OF SAID CRYSTALS BEING SUBSTANTIALLY ALIGNED WITH EACH OTHER WITHIN SAID MATERIAL, SAID CRYSTALS BEING ORIENTED WITHIN SAID WAVEGUIDE SO THAT A (110) DIRECTION OF SAID CRYSTALS IS SUBSTANTIALLY PARALLEL TO THE DIRECTION OF SAID APPLIED MAGNETIC FIELD AND A (100) DIRECTION OF SAID CYRSTALS IS SUBSTANTIALLY PARALLEL TO THE DIRECTION OF THE LONGITUDINAL AXIS OF SAID WAVEGUIDE.
Claim 2
Dependent Claim
115 words
IN COMBINATION, A RECTANGULAR WAVEGUIDE FOR PROPAGATING ENERGY IN A DIRECTION ALONG THE LONGITUDINAL AXIS OF SAID WAVEGUIDE, A FERRITE MATERIAL POSITIONED WITHIN SAID WAVEGUIDE, MEANS FOR APPLYING A D.-C. MAGNETIC FIELD IN A SELECTED DIRECTION PERPENDICULAR TO THE DIRECTION OF PROPAGATION, SAID MATERIAL COMPRISING A PLURALITY OF CUBIC CRYSTALS HAVING A POSITIVE ANISOTROPY CONSTANT, THE AXES OF SAID CRYSTALS BEING SUBSTANTIALLY ALIGNED WITH EACH OTHER WITHIN SAID MATERIAL, SAID CRYSTALS BEING ORIENTED WITHIN SAID WAVEGUIDE SO THAT A (110) DIRECTION OF SAID CRYSTALS IS SUBSTANTIALLY PARALLEL TO THE DIRECTION OF SAID APPLIED MAGNETIC FIELD AND A (100) DIRECTION OF SAID CYRSTALS IS SUBSTANTIALLY PARALLEL TO THE DIRECTION OF THE LONGITUDINAL AXIS OF SAID WAVEGUIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |