GB825491A - Magnetically enclosed coil - Google Patents

Magnetically enclosed coil

Info

Publication number
GB825491A
GB825491A GB1437757A GB1437757A GB825491A GB 825491 A GB825491 A GB 825491A GB 1437757 A GB1437757 A GB 1437757A GB 1437757 A GB1437757 A GB 1437757A GB 825491 A GB825491 A GB 825491A
Authority
GB
United Kingdom
Prior art keywords
ferrite
cylinder
mixture
aldehydes
group xxxv
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
Application number
GB1437757A
Inventor
Lester E Hill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aladdin Industries LLC
Original Assignee
Aladdin Industries LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aladdin Industries LLC filed Critical Aladdin Industries LLC
Priority to GB1437757A priority Critical patent/GB825491A/en
Publication of GB825491A publication Critical patent/GB825491A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/04Fixed inductances of the signal type  with magnetic core
    • H01F17/045Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Insulating Of Coils (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

825,491. Bobbins. ALADDIN INDUSTRIES Inc. May 6,1957, No. 14377/57. Class 120(3) [Also in Group XXXV] A flanged ferromagnetic bobbin for an inductance coil (see Group XXXV) is formed from a ferrite mixture which may include nickel ferrite, cobalt ferrite, zinc ferrite, vanadium ferrite, zinc oxide, vanadium oxide, iron oxide, magnesium zirconate and lead titanate together with a temporary binding material selected from phenol-aldehydes, melamine aldehydes, urea aldehydes, vinyl polymers and copolymers, polyacrylates, polystyrenes, polyesters, and rubber based materials. In manufacture the mixture is moulded under pressure to form a cylinder 13 and fired for ¢-2 hours at 1800‹F-2500‹F. Unfired apertured flanges 14 are positioned on the ends of the cylinder and on refiring shrink more than the cylinder and so attain a firm fixing Windings 16 are wound and connected to terminals and a magnetic sleeve 21 is positioned on the core. A mixture of the ferrite material with a polyester resin binder is applied and cured at 125‹C. to form sealing masses 22. Specifications 661,721, 673,719 and 673,720 [all in Group XXXV] are referred to.
GB1437757A 1957-05-06 1957-05-06 Magnetically enclosed coil Expired GB825491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1437757A GB825491A (en) 1957-05-06 1957-05-06 Magnetically enclosed coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1437757A GB825491A (en) 1957-05-06 1957-05-06 Magnetically enclosed coil

Publications (1)

Publication Number Publication Date
GB825491A true GB825491A (en) 1959-12-16

Family

ID=10040102

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1437757A Expired GB825491A (en) 1957-05-06 1957-05-06 Magnetically enclosed coil

Country Status (1)

Country Link
GB (1) GB825491A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119580A (en) * 1982-03-03 1983-11-16 Philips Nv Wound electrical component
EP1970923A1 (en) * 2005-11-14 2008-09-17 Sumida Corporation Power inductor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119580A (en) * 1982-03-03 1983-11-16 Philips Nv Wound electrical component
EP1970923A1 (en) * 2005-11-14 2008-09-17 Sumida Corporation Power inductor
EP1970923A4 (en) * 2005-11-14 2009-01-07 Sumida Corp Power inductor

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