US2930097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing impregnated ferrite
Assignee: Raytheon Co
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Filing: 1956-12-07
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Granted: 1960-03-29
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Expires: 1976-12-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Iversen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:24
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/34; H01F1/36; H01F1/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A METHOD FOR MAKING A FERRITE ELEMENT SUITABLE FOR USE IN MICROWAVE DEVICES AND BEING IMPREGNATED WITH A VITREOUS MATERIAL WHEREBY THE FERRITE ELEMENT IS BONDED AND HERMETICALLY SEALED, THE METHOD PROVIDING A PROPORTIONAL COMPOSITION OF FERRITE VERSUS VITREOUS MATERIAL WHICH VARIES SMOOTHLY ALONG THE DIRECTION FROM END TO END OF SAID ELEMENT, SAID COMPOSITION BEING SUBSTANTIALLY OF VITREOUS MATERIAL NEAR SAID ENDS OF SAID ELEMENT AND PREDOMINANTLY FERRITE AT AN INTERMEDIATE PORTION BETWEEN SAID ENDS AND HAVING A CONTINOUS TRANSITION BETWEEN SAID ENDS AND SAID INTERMEDIATE PORTION FOR IMPROVED IMPEDANCE MATCH BETWEEN SAID FERRITE AND SPACE, SAID METHOD COMPRISING: SIMULTANEOUSLY POURING A STREAM OF FERRITE POWDER AND A STREAM OF VITREOUS POWDER IN SUITABLE FORM TOGETHER INTO A TAPERED MOLD, VARYING THE RELATIVE RATE OF POURING OF SAID STREAMS IN ACCORDANCE WITH A
Claim 2
Independent Claim
134 words
A METHOD FOR MAKING A FERRITE ELEMENT SUITABLE FOR USE IN MICROWAVE DEVICES AND BEING IMPREGNATED WITH A VITREOUS MATERIAL WHEREBY THE FERRITE ELEMENT IS BONDED AND HERMETICALLY SEALED, THE METHOD PROVIDING A PROPORTIONAL COMPOSITION OF FERRITE VERSUS VITREOUS MATERIAL WHICH VARIES SMOOTHLY ALONG THE DIRECTION FROM END TO END OF SAID ELEMENT, SAID COMPOSITION BEING SUBSTANTIALLY OF VITREOUS MATERIAL NEAR SAID ENDS OF SAID ELEMENT AND PREDOMINANTLY FERRITE AT AN INTERMEDIATE PORTION BETWEEN SAID ENDS AND HAVING A CONTINOUS TRANSITION BETWEEN SAID ENDS AND SAID INTERMEDIATE PORTION FOR IMPROVED IMPEDANCE MATCH BETWEEN SAID FERRITE AND SPACE, SAID METHOD COMPRISING: SIMULTANEOUSLY POURING A STREAM OF FERRITE POWDER AND A STREAM OF VITREOUS POWDER IN SUITABLE FORM TOGETHER INTO A TAPERED MOLD, VARYING THE RELATIVE RATE OF POURING OF SAID STREAMS IN ACCORDANCE WITH A
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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |