US3304400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling arrangement for magnetrons
Assignee: Husqvarna Vapenfabriks AB
•
Filing: 1964-04-10
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Granted: 1967-02-14
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Expires: 1984-04-10
Abstract
No abstract record available.
Inventors
- 👤 Ojelid Goran Axel Runo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:37
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/642; C; C08; C08L; C08L95/00; C08L95/005; H01; H01J; H01J7/00; H01J7/24; H05B6/6402
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A MAGNETRON OF THE KIND COMPRISING TWO ALIGNED, SPACED APART PERMANENT MAGNETIC POLE PIECES, A SUBSTANTIALLY U-SHAPED YOKE INTERCONNECTING THE REMOTE ENDS OF SAID POLE PIECES, AND AN ANODE BLOCK WHICH IS INTERPOSED BETWEEN SAID ALIGNED POLE PIECES AND IS PROVIDED WITH A HIGH FREQUENCY OUTPUT AND A PAIR OF HEATER SUPPORTING CONNECTIONS; A COOLING ARRANGEMENT COMPRISING A PLURALITY OF COOLING FINS WHICH HAVE A GOOD HEAT CONDUCTIVITY AND ARE UNITED, AT CLOSE INTERVALS, SUBSTANTIALLY PARALLEL TO EACH OTHER AND TO THE COMMON AXIS OF SAID POLE PIECES, WITH THE ANODE BLOCK IN CLOSE HEAT EXCHANGE RELATIONSHIP THEREWITH, AND AT LEAST ONE BLOWER HAVING A DISCHARGE OPENING FACING ONE OF THE LONGITUDINAL EDGES OF EACH OF SAID COOLING FINS AND THE INTERVALS THEREBETWEEN FOR BLOWING COOLING AIR THROUGH SAID INTERVALS.
Claim 2
Dependent Claim
131 words
IN A MAGNETRON OF THE KIND COMPRISING TWO ALIGNED, SPACED APART PERMANENT MAGNETIC POLE PIECES, A SUBSTANTIALLY U-SHAPED YOKE INTERCONNECTING THE REMOTE ENDS OF SAID POLE PIECES, AND AN ANODE BLOCK WHICH IS INTERPOSED BETWEEN SAID ALIGNED POLE PIECES AND IS PROVIDED WITH A HIGH FREQUENCY OUTPUT AND A PAIR OF HEATER SUPPORTING CONNECTIONS; A COOLING ARRANGEMENT COMPRISING A PLURALITY OF COOLING FINS WHICH HAVE A GOOD HEAT CONDUCTIVITY AND ARE UNITED, AT CLOSE INTERVALS, SUBSTANTIALLY PARALLEL TO EACH OTHER AND TO THE COMMON AXIS OF SAID POLE PIECES, WITH THE ANODE BLOCK IN CLOSE HEAT EXCHANGE RELATIONSHIP THEREWITH, AND AT LEAST ONE BLOWER HAVING A DISCHARGE OPENING FACING ONE OF THE LONGITUDINAL EDGES OF EACH OF SAID COOLING FINS AND THE INTERVALS THEREBETWEEN FOR BLOWING COOLING AIR THROUGH SAID INTERVALS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |