SG33587G - Locking mechanismus and method of magnetizing a locking magnet therefor - Google Patents

Locking mechanismus and method of magnetizing a locking magnet therefor

Info

Publication number
SG33587G
SG33587G SG33587A SG33587A SG33587G SG 33587 G SG33587 G SG 33587G SG 33587 A SG33587 A SG 33587A SG 33587 A SG33587 A SG 33587A SG 33587 G SG33587 G SG 33587G
Authority
SG
Singapore
Prior art keywords
locking
magnet
pole
mechanismus
magnetizing
Prior art date
Application number
SG33587A
Original Assignee
Sedley Bruce S
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 Sedley Bruce S filed Critical Sedley Bruce S
Publication of SG33587G publication Critical patent/SG33587G/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • 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
    • E05B47/0043—Mechanical locks operated by cards having 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
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0231—Magnetic circuits with PM for power or force generation
    • H01F7/0242—Magnetic drives, magnetic coupling devices

Abstract

The method starts from a magnet (14) having its opposite ends magnetized such that north and south pole be equally strong. One pole (N) of the locking magnet is connected to the opposite pole (S) of a second magnet (30). A magnetic field is applied to the opposite end (S) of the locking magnet, and is collapsed to reverse the polarity of said opposite end, whereby the strenght of the magnetic pole adjacent the second magnet becomes relatively weak compared to the pole adjacent the magnetic field. Use in order to prevent undesirable interaction between the locking magnets in magnetic locksets.
SG33587A 1981-06-22 1987-04-10 Locking mechanismus and method of magnetizing a locking magnet therefor SG33587G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27597981A 1981-06-22 1981-06-22

Publications (1)

Publication Number Publication Date
SG33587G true SG33587G (en) 1987-07-17

Family

ID=23054622

Family Applications (1)

Application Number Title Priority Date Filing Date
SG33587A SG33587G (en) 1981-06-22 1987-04-10 Locking mechanismus and method of magnetizing a locking magnet therefor

Country Status (12)

Country Link
EP (1) EP0068988B1 (en)
JP (1) JPS584070A (en)
KR (1) KR910002019B1 (en)
AT (1) ATE15521T1 (en)
AU (1) AU549917B2 (en)
CA (1) CA1227654A (en)
DE (2) DE68988T1 (en)
ES (1) ES513264A0 (en)
HK (1) HK61187A (en)
MX (1) MX156554A (en)
PH (1) PH22562A (en)
SG (1) SG33587G (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU570031B2 (en) * 1983-03-17 1988-03-03 Lowe & Fletcher Limited Magnetising apparatus
DE19807663A1 (en) * 1998-02-24 1999-09-09 Baur Connection means for releasably connecting a first component and a second component and method for releasing a connection of a first component and a second component
US6588811B1 (en) 2002-12-03 2003-07-08 Edward B. Ferguson Reversible magnetic door stop/latch
US8540292B2 (en) 2002-12-03 2013-09-24 Edward B. Ferguson Reversible magnetic door stop/latch

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133194A (en) * 1976-12-02 1979-01-09 Bruce S. Sedley Magnetic key operated door lock
CH620492A5 (en) * 1977-07-25 1980-11-28 Fichtel & Sachs Ag Magnetically actuable rotary cylinder lock, key and method and device for the magnetic coding of the key

Also Published As

Publication number Publication date
KR840000725A (en) 1984-02-27
MX156554A (en) 1988-09-09
HK61187A (en) 1987-08-28
AU549917B2 (en) 1986-02-20
EP0068988B1 (en) 1985-09-11
KR910002019B1 (en) 1991-03-30
CA1227654A (en) 1987-10-06
PH22562A (en) 1988-10-17
DE3266179D1 (en) 1985-10-17
JPH03477B2 (en) 1991-01-08
JPS584070A (en) 1983-01-11
ES8307327A1 (en) 1983-07-01
ES513264A0 (en) 1983-07-01
DE68988T1 (en) 1983-05-11
ATE15521T1 (en) 1985-09-15
EP0068988A1 (en) 1983-01-05
AU8508982A (en) 1983-01-06

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