GB1544990A - Multistable electromagnetic indication device - Google Patents

Multistable electromagnetic indication device

Info

Publication number
GB1544990A
GB1544990A GB31932/76A GB2193276A GB1544990A GB 1544990 A GB1544990 A GB 1544990A GB 31932/76 A GB31932/76 A GB 31932/76A GB 2193276 A GB2193276 A GB 2193276A GB 1544990 A GB1544990 A GB 1544990A
Authority
GB
United Kingdom
Prior art keywords
indication device
multistable
electromagnetic indication
multistable electromagnetic
electromagnetic
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
GB31932/76A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1544990A publication Critical patent/GB1544990A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
    • G09F9/375—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the position of the elements being controlled by the application of a magnetic field
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0472—Traffic signs
    • 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
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
GB31932/76A 1975-05-27 1976-05-26 Multistable electromagnetic indication device Expired GB1544990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7505988 1975-05-27

Publications (1)

Publication Number Publication Date
GB1544990A true GB1544990A (en) 1979-04-25

Family

ID=20324652

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31932/76A Expired GB1544990A (en) 1975-05-27 1976-05-26 Multistable electromagnetic indication device

Country Status (1)

Country Link
GB (1) GB1544990A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198275A (en) * 1986-10-15 1988-06-08 Bischoff Hermann Joseph Notice board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198275A (en) * 1986-10-15 1988-06-08 Bischoff Hermann Joseph Notice board

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee