US3237059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet system for producing a magnetic field for the focused passage of a beam of electrons
Assignee: Siemens and Halske AG
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Filing: 1963-09-23
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Granted: 1966-02-22
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Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Meyerer Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:30
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/08; H01J23/087; H01F; H01F7/00; H01F7/02; H01F7/0273; H01F7/0278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A PERMANENT-MAGNET SYSTEM FOR PRODUCING SUBSTANTIALLY HOMOGENEOUS MAGNETIC FIELD FOR THE FOCUSED PASSAGE OF A BEAM OF ELECTRONS OVER AN EXTENDED PATH, PARTICULARLY FOR HIGH POWER TRAVELING-WAVE TUBES, COMPRISING PERMANENT MANGENTS DISPOSED ALONG AND ARRANGED WITH AXIAL SYMMETRY ABOUT THE AXIS OF THE SYSTEM, SAID MAGNETS BEING MAGNETIZED RADIALLY TO THE SYSTEM AXIS, MEANS AT THE OUTER POLES OF SAID PERMANENT MAGNETS FOR MAGNETICALLY SHORT CIRCUITING SUCH POLES IN THE LONGITUDINAL DIRECTION OF THE SYSTEM, SAID PERMANENT MAGNETS BEING SO DISPOSED THAT THE POLES DISPOSED AT ONE END OF THE SYSTEM HAVE A POLARITY WHICH IS OPPOSITE TO THAT OF THE CORRESPONDING POLES AT THE OTHER END OF THE SYSTEM, SAID PERMANENT MAGNETS FORMING FURTHER MAGNETIC POLES ARRANGED IN THE LONGITUDINAL DIRECTION OF THE SYSTEM, BETWEEN SAID MAGNETIC POLES OF OPPOSITE POLARITY ARRANGED AT THE TWO ENDS OF THE SYSTEM, THE RESPECTIVE FUTHER MAGNETIC POLES BEING OF THE SAME POLARITY UP TO
Claim 2
Dependent Claim
152 words
A PERMANENT-MAGNET SYSTEM FOR PRODUCING SUBSTANTIALLY HOMOGENEOUS MAGNETIC FIELD FOR THE FOCUSED PASSAGE OF A BEAM OF ELECTRONS OVER AN EXTENDED PATH, PARTICULARLY FOR HIGH POWER TRAVELING-WAVE TUBES, COMPRISING PERMANENT MANGENTS DISPOSED ALONG AND ARRANGED WITH AXIAL SYMMETRY ABOUT THE AXIS OF THE SYSTEM, SAID MAGNETS BEING MAGNETIZED RADIALLY TO THE SYSTEM AXIS, MEANS AT THE OUTER POLES OF SAID PERMANENT MAGNETS FOR MAGNETICALLY SHORT CIRCUITING SUCH POLES IN THE LONGITUDINAL DIRECTION OF THE SYSTEM, SAID PERMANENT MAGNETS BEING SO DISPOSED THAT THE POLES DISPOSED AT ONE END OF THE SYSTEM HAVE A POLARITY WHICH IS OPPOSITE TO THAT OF THE CORRESPONDING POLES AT THE OTHER END OF THE SYSTEM, SAID PERMANENT MAGNETS FORMING FURTHER MAGNETIC POLES ARRANGED IN THE LONGITUDINAL DIRECTION OF THE SYSTEM, BETWEEN SAID MAGNETIC POLES OF OPPOSITE POLARITY ARRANGED AT THE TWO ENDS OF THE SYSTEM, THE RESPECTIVE FUTHER MAGNETIC POLES BEING OF THE SAME POLARITY UP TO
References Cited (Backward Citations)
GB770133A
Cited
US2876373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |