GB977030A - Improvements in or relating to encapsulating articles - Google Patents
Improvements in or relating to encapsulating articlesInfo
- Publication number
- GB977030A GB977030A GB2708961A GB2708961A GB977030A GB 977030 A GB977030 A GB 977030A GB 2708961 A GB2708961 A GB 2708961A GB 2708961 A GB2708961 A GB 2708961A GB 977030 A GB977030 A GB 977030A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- core
- july
- closed
- configuration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
Abstract
977,030. Coating with pre-formed sheets. DE HAVILLAND AIRCRAFT CO. Ltd. July 10, 1962 [July 26, 1961], No. 27089/61. Heading B6G. [Also in Division H1] A toroidal core 1 of ceramic material comprising an outer peripheral groove containing layers of magnetic material 2, the groove being closed by an annular aluminium ring 3, is supported on an air-pervious support 5 in a vacuum chamber 6 closed by a sheet 9 of polypropylene. Heat from a radiant heating means 11 softens the sheet 9, which moves into configuration 9b owing to air expansion. Vacuum is applied through the pipe 7, and the sheet assumes the configuration 9c. The parts of the sheet stretched across the central opening of the core and those outside the outer periphery are cut away. The core is then turned upsidedown and a second sheet similarly applied. A third sheet is applied in the original attitude of the core. The encapsulated core is used as a transductor for a magnetic amplifier.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2708961A GB977030A (en) | 1961-07-26 | 1961-07-26 | Improvements in or relating to encapsulating articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2708961A GB977030A (en) | 1961-07-26 | 1961-07-26 | Improvements in or relating to encapsulating articles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB977030A true GB977030A (en) | 1964-12-02 |
Family
ID=10254011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2708961A Expired GB977030A (en) | 1961-07-26 | 1961-07-26 | Improvements in or relating to encapsulating articles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB977030A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3493908A (en) * | 1968-04-24 | 1970-02-03 | Pulse Eng Inc | Component assemblage with cocoon means |
-
1961
- 1961-07-26 GB GB2708961A patent/GB977030A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3493908A (en) * | 1968-04-24 | 1970-02-03 | Pulse Eng Inc | Component assemblage with cocoon means |
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