GB828291A - Improvements in and relating to electric inductors - Google Patents

Improvements in and relating to electric inductors

Info

Publication number
GB828291A
GB828291A GB2911854A GB2911854A GB828291A GB 828291 A GB828291 A GB 828291A GB 2911854 A GB2911854 A GB 2911854A GB 2911854 A GB2911854 A GB 2911854A GB 828291 A GB828291 A GB 828291A
Authority
GB
United Kingdom
Prior art keywords
sheet
strip
conductor
spiral
inductor
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
GB2911854A
Inventor
Alexander Robson
Frederick Charles Mitchell
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.)
PHOTO PRINTED CIRCUITS Ltd
Burndept Ltd
Original Assignee
PHOTO PRINTED CIRCUITS Ltd
Burndept Ltd
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 PHOTO PRINTED CIRCUITS Ltd, Burndept Ltd filed Critical PHOTO PRINTED CIRCUITS Ltd
Priority to GB2911854A priority Critical patent/GB828291A/en
Publication of GB828291A publication Critical patent/GB828291A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F2005/006—Coils with conical spiral form

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

828,291. Inductors. BURNDEPT Ltd., and PHOTO PRINTED CIRCUITS Ltd. Jan. 9, 1956 [Oct. 8, 1954], No. 29118/54. Class 38 (2). An electric inductor comprises a spiral conductor 10 of strip form fixed to a sheet 11 of insulating material, the strip 10 being applied to the sheet 11 whilst in a flat form, the sheet and strip then being placed in a jig and distorted into a dished shape. The inductor may be enclosed in a screening member 16 and provided with a movable ferromagnetic core 17. The dished shape of the inductor is preferably frusto-conical with a solid angle of 90 degrees. The conductor 10 may be formed by fixing a copper foil disc to the sheet 11 and then removing the unwanted foil by means of etching or, in another embodiment, a spiral cut may be made in both disc and sheet, so that when the assembly is distorted to be fixed to a conical support the cut will widen to leave a spiral strip conductor.
GB2911854A 1954-10-08 1954-10-08 Improvements in and relating to electric inductors Expired GB828291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2911854A GB828291A (en) 1954-10-08 1954-10-08 Improvements in and relating to electric inductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2911854A GB828291A (en) 1954-10-08 1954-10-08 Improvements in and relating to electric inductors

Publications (1)

Publication Number Publication Date
GB828291A true GB828291A (en) 1960-02-17

Family

ID=10286445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2911854A Expired GB828291A (en) 1954-10-08 1954-10-08 Improvements in and relating to electric inductors

Country Status (1)

Country Link
GB (1) GB828291A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079602A2 (en) * 1981-11-17 1983-05-25 Robert Bosch Gmbh Process for manufacturing printed conductors
WO1997020327A1 (en) * 1995-11-27 1997-06-05 Matsushita Electric Industrial Co., Ltd. Coiled component and its production method
WO1999026264A1 (en) * 1997-11-14 1999-05-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Microrelay
US8072773B2 (en) 2008-04-04 2011-12-06 John Mruz Ultra-wideband assembly system and method
WO2020169485A1 (en) * 2019-02-19 2020-08-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing a helical metal body

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079602A2 (en) * 1981-11-17 1983-05-25 Robert Bosch Gmbh Process for manufacturing printed conductors
EP0079602A3 (en) * 1981-11-17 1984-05-09 Robert Bosch Gmbh Process for manufacturing printed conductors
WO1997020327A1 (en) * 1995-11-27 1997-06-05 Matsushita Electric Industrial Co., Ltd. Coiled component and its production method
US6169470B1 (en) 1995-11-27 2001-01-02 Matsushita Electric Industrial Co., Ltd. Coiled component and its production method
CN1130735C (en) * 1995-11-27 2003-12-10 松下电器产业株式会社 Coiled component and its production method
WO1999026264A1 (en) * 1997-11-14 1999-05-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Microrelay
US8072773B2 (en) 2008-04-04 2011-12-06 John Mruz Ultra-wideband assembly system and method
US8797761B2 (en) 2008-04-04 2014-08-05 John Mruz Ultra-wideband assembly system and method
US9854665B2 (en) 2008-04-04 2017-12-26 American Technical Ceramics Corp. Ultra-wideband assembly system and method
US10165675B2 (en) 2008-04-04 2018-12-25 American Technical Ceramics Corp. Ultra-wideband assembly system and method
WO2020169485A1 (en) * 2019-02-19 2020-08-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for producing a helical metal body
US11967868B2 (en) 2019-02-19 2024-04-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for the production of a helical metal body

Similar Documents

Publication Publication Date Title
AU1540076A (en) An electric motor having controlled magnetic flux density and circuit therefor
GB828291A (en) Improvements in and relating to electric inductors
GB1541893A (en) Printed circuit board and method for preparing the same
JPS5695295A (en) Voice sysnthesis and control circuit
JPS5277573A (en) Magnetic field generating device
GB1233894A (en)
JPS5360643A (en) Copying apparatus
IT1079398B (en) Ferromagnetic core with protected boundary edges - has insulating lip extending beyond one of two surfaces which meet to define edge onto adjacent part of other surface
JPS5327349A (en) Agc circuit
AU503706B2 (en) Etching apertures in metal foils
JPS5212810A (en) Magnetic sheet recording reproduction equipment
CH516900A (en) Connection part made from resilient sheet metal for establishing an electrical connection with a conductor of a printed circuit and using the connection part
JPS529860A (en) Electric circuit in electromagnetic actuator
JPS53121614A (en) Magnetic circuit of speaker
GB1419195A (en) Integrated magnetic wire memory devices
GB2018515B (en) Lamination stack for an elecrical component and manufacturethereof
CA717708A (en) Method and apparatus for automatic assembly of small electrical components with a printed circuit board
JPS5696812A (en) Inductance device
GB804189A (en) Improvements in or relating to the manufacture of electric circuits
CA631713A (en) Method for fabricating printed circuit boards
CA747010A (en) Printed circuit board and method of manufacture thereof
JPS57162309A (en) Step-up coil
IL50277A0 (en) Coil and microphone mountings
CA723793A (en) Electrical contacts for printed circuit edge connectors and assemblies including the same
GB1070871A (en) Improvements in or relating to electrical apparatus