GB2137419B - Magnetising apparatus - Google Patents

Magnetising apparatus

Info

Publication number
GB2137419B
GB2137419B GB08403979A GB8403979A GB2137419B GB 2137419 B GB2137419 B GB 2137419B GB 08403979 A GB08403979 A GB 08403979A GB 8403979 A GB8403979 A GB 8403979A GB 2137419 B GB2137419 B GB 2137419B
Authority
GB
United Kingdom
Prior art keywords
magnetising
magnetising apparatus
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
GB08403979A
Other versions
GB2137419A (en
GB8403979D0 (en
Inventor
Leslie Victor Herriott
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.)
Lowe and Fletcher Ltd
Original Assignee
Lowe and Fletcher 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
Priority claimed from GB838307450A external-priority patent/GB8307450D0/en
Priority claimed from GB838316925A external-priority patent/GB8316925D0/en
Application filed by Lowe and Fletcher Ltd filed Critical Lowe and Fletcher Ltd
Priority to GB08403979A priority Critical patent/GB2137419B/en
Publication of GB8403979D0 publication Critical patent/GB8403979D0/en
Publication of GB2137419A publication Critical patent/GB2137419A/en
Application granted granted Critical
Publication of GB2137419B publication Critical patent/GB2137419B/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
GB08403979A 1983-03-17 1984-02-15 Magnetising apparatus Expired GB2137419B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08403979A GB2137419B (en) 1983-03-17 1984-02-15 Magnetising apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB838307450A GB8307450D0 (en) 1983-03-17 1983-03-17 Magnetic key
GB838316925A GB8316925D0 (en) 1983-06-22 1983-06-22 Magnetic key
GB08403979A GB2137419B (en) 1983-03-17 1984-02-15 Magnetising apparatus

Publications (3)

Publication Number Publication Date
GB8403979D0 GB8403979D0 (en) 1984-03-21
GB2137419A GB2137419A (en) 1984-10-03
GB2137419B true GB2137419B (en) 1987-11-11

Family

ID=27262013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08403979A Expired GB2137419B (en) 1983-03-17 1984-02-15 Magnetising apparatus

Country Status (1)

Country Link
GB (1) GB2137419B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442917C2 (en) * 1994-12-01 1998-12-03 Wst Steuerungstechnik Gmbh Method of applying magnetic marks

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814392C2 (en) * 1977-04-13 1983-10-27 Evva-Werk Spezialerzeugung von Zylinder- und Sicherheitsschlössern GmbH & Co KG, 1120 Wien Surface magnetization device

Also Published As

Publication number Publication date
GB2137419A (en) 1984-10-03
GB8403979D0 (en) 1984-03-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950215