GB950277A - Improvements in or relating to flexible permanent magnet material - Google Patents

Improvements in or relating to flexible permanent magnet material

Info

Publication number
GB950277A
GB950277A GB4087059A GB4087059A GB950277A GB 950277 A GB950277 A GB 950277A GB 4087059 A GB4087059 A GB 4087059A GB 4087059 A GB4087059 A GB 4087059A GB 950277 A GB950277 A GB 950277A
Authority
GB
United Kingdom
Prior art keywords
sheet
plastic material
sheets
magnet material
permanent magnet
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
GB4087059A
Inventor
Alan George Stanley
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.)
DARWINS Ltd
Original Assignee
DARWINS 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 DARWINS Ltd filed Critical DARWINS Ltd
Priority to GB4087059A priority Critical patent/GB950277A/en
Publication of GB950277A publication Critical patent/GB950277A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/021—Construction of PM
    • H01F7/0215—Flexible forms, sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/0027—Thick magnetic films
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • H01F1/113—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles in a bonding agent
    • H01F1/117—Flexible bodies

Abstract

950,277. Laminates. DARWINS Ltd. Dec. 1, 1960 [Dec. 2, 1959], No. 40870/59. Drawings to Specification. Heading B5N. [Also in Divisions B8, E2 and H1] A sheet of flexible plastic material in which powdered permanent magnet material of high coercive force has been compounded, and which is magnetized perpendicularly to its surfaces, is superimposed on and bonded to a sheet of plastic material in which has been compounded powdered material of relatively high magnetic permeability, e.g. iron powder, to form a composite flexible magnetic sheet. The plastic material may be rubber, synthetic rubber, polyethylene or polyvinyl chloride. The magnet material may be barium ferrite. The first sheet may be magnetized in bands or regions of alternate polarity. A compound sheet may comprise two such sheets on opposite sides of a sheet of the plastic material containing powdered material of high magnetic permeability. Alternatively, the first sheet may be of single polarity over the whole of one surface and of opposite polarity over the other. In this case, sheets of the two types may be alternated, with the surface polarities of alternate sheets of the first type reversed. Specifications 950,273, 950,274 and 950,278 are referred to.
GB4087059A 1959-12-02 1959-12-02 Improvements in or relating to flexible permanent magnet material Expired GB950277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4087059A GB950277A (en) 1959-12-02 1959-12-02 Improvements in or relating to flexible permanent magnet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4087059A GB950277A (en) 1959-12-02 1959-12-02 Improvements in or relating to flexible permanent magnet material

Publications (1)

Publication Number Publication Date
GB950277A true GB950277A (en) 1964-02-26

Family

ID=10417033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4087059A Expired GB950277A (en) 1959-12-02 1959-12-02 Improvements in or relating to flexible permanent magnet material

Country Status (1)

Country Link
GB (1) GB950277A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209010A (en) * 1978-07-26 1980-06-24 The Kendall Company Artificial sphincter
GB2225167A (en) * 1988-11-18 1990-05-23 Maistre Geoffrey Francis Le Magnetic holding devices
WO2002041330A1 (en) * 2000-11-16 2002-05-23 Continental Teves Ag & Co. Ohg Magnetizable or magnetized body and method for producing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209010A (en) * 1978-07-26 1980-06-24 The Kendall Company Artificial sphincter
GB2225167A (en) * 1988-11-18 1990-05-23 Maistre Geoffrey Francis Le Magnetic holding devices
WO2002041330A1 (en) * 2000-11-16 2002-05-23 Continental Teves Ag & Co. Ohg Magnetizable or magnetized body and method for producing the same

Similar Documents

Publication Publication Date Title
US3257586A (en) Flexible permanent magnet and composition
ES416001A1 (en) Permanent magnet for suspension bearings
ES448998A1 (en) Magnetic structure, particularly permanent magnet for motor fields, and method
GB1209934A (en) Improvements in or relating to coded cards for actuating or setting a magnetically operated mechanism
ES419858A1 (en) Shield for permanent magnet structure
GB950277A (en) Improvements in or relating to flexible permanent magnet material
GB1437426A (en) Coupling devices for toy vehicles
ES416435A1 (en) Stacked magnetic arrangement
GB950275A (en) Improvements in or relating to endless conveyors
GB1226698A (en)
GB968487A (en) A magnetically adherent flexible sign or like plate
GB950278A (en) Improvements in or relating to holding magnets
GB1354598A (en) Ferrite particles for flexible permenent magnets
GB1099634A (en) Improvements in and relating to magnetic display devices
GB1061653A (en) Magnetic materials with high permeability
GB1317217A (en) Ferromagnetic crystalline chromium oxide materials containing carbon and processes for their preparation
GB1025616A (en) Flexible permanent magnet devices
GB949006A (en) Flexible permanent magnets
GB882712A (en) Material with permanent magnetic properties
GB1037426A (en) Improvements in or relating to magnetic sealing strips for containers
GB935152A (en) Improvements in the application of letters, numerals, symbols and the like characters to ferro-magnetic articles
GB933666A (en) Improvements in or relating to magnetic holding devices
GB835492A (en) Improvements in or relating to gaskets for refrigeration apparatus or the like
GB950276A (en) Improvements in or relating to magnetic separators
GB1167120A (en) Improvements in or relating to Permanent Magnetic Sheets.