US3321720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular waveguide teon mode filter
Assignee: Individual
•
Filing: 1965-09-13
•
Granted: 1967-05-23
•
Expires: 1985-09-13
Abstract
No abstract record available.
Inventors
- 👤 Shimada Sadakuni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:36
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/16; H01P1/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
AN ELECTROMAGNETIC WAVE TEON MODE FILTER WHICH COMPRISES, IN COMBINATION: A COMPOSITE CIRCULAR WAVEGUIDE CONSTRUCTED WITH A PLURALITY OF SINGLE BODIES OF SECTOR WAVEGUIDES, EACH BEING COMPOSED OF AN ARCUATE PART AND A PLANAR PART BOTH OF WHICH ARE INTEGRATED BEFOREHAND, THE SAID SINGLE BODIES OF THE SECTOR WAVEGUIDES BEING SO ASSEMBLED THAT THE SAID PLANAR PART OF THE SECTOR WAVEGUIDES ARE MADE TO OPPOSE JUXTAPOSITION WITH A SUBSTANTIALLY EQUAL SPACE GAP; AND MODE CONVERSION MEANS ALIGNED IN ROWS PARALLEL TO THE AXIS OF THE SAID WAVEGUIDE AT POSITIONS ON THE SAID PLANAR PART WHICH ARE 0.6276R IN THE RADIAL DIRECTION FROM THE CENTER LINE OF THE SAID SECTOR WAVEGUIDE, R BEING THE LENGTH OF THE RADIUS OF THE SAID WAVEGUIDE; AND MEANS TO REMOVE SPURIOUS MODE WAVES PRODUCED BY THE SAID MODE CONVERSION MEANS.
Claim 2
Dependent Claim
135 words
AN ELECTROMAGNETIC WAVE TEON MODE FILTER WHICH COMPRISES, IN COMBINATION: A COMPOSITE CIRCULAR WAVEGUIDE CONSTRUCTED WITH A PLURALITY OF SINGLE BODIES OF SECTOR WAVEGUIDES, EACH BEING COMPOSED OF AN ARCUATE PART AND A PLANAR PART BOTH OF WHICH ARE INTEGRATED BEFOREHAND, THE SAID SINGLE BODIES OF THE SECTOR WAVEGUIDES BEING SO ASSEMBLED THAT THE SAID PLANAR PART OF THE SECTOR WAVEGUIDES ARE MADE TO OPPOSE JUXTAPOSITION WITH A SUBSTANTIALLY EQUAL SPACE GAP; AND MODE CONVERSION MEANS ALIGNED IN ROWS PARALLEL TO THE AXIS OF THE SAID WAVEGUIDE AT POSITIONS ON THE SAID PLANAR PART WHICH ARE 0.6276R IN THE RADIAL DIRECTION FROM THE CENTER LINE OF THE SAID SECTOR WAVEGUIDE, R BEING THE LENGTH OF THE RADIUS OF THE SAID WAVEGUIDE; AND MEANS TO REMOVE SPURIOUS MODE WAVES PRODUCED BY THE SAID MODE CONVERSION MEANS.
References Cited (Backward Citations)
US3010088A
Cited
US3112460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |