ZA200203752B - Switchable permanent magnetic device. - Google Patents

Switchable permanent magnetic device. Download PDF

Info

Publication number
ZA200203752B
ZA200203752B ZA200203752A ZA200203752A ZA200203752B ZA 200203752 B ZA200203752 B ZA 200203752B ZA 200203752 A ZA200203752 A ZA 200203752A ZA 200203752 A ZA200203752 A ZA 200203752A ZA 200203752 B ZA200203752 B ZA 200203752B
Authority
ZA
South Africa
Prior art keywords
magnet
housing
magnets
pole
poles
Prior art date
Application number
ZA200203752A
Other languages
English (en)
Inventor
Perry John Underwood
Franz Kocijan
Original Assignee
Aussie Kids Toy Company Pty Lt
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3818608&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA200203752(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aussie Kids Toy Company Pty Lt filed Critical Aussie Kids Toy Company Pty Lt
Publication of ZA200203752B publication Critical patent/ZA200203752B/en

Links

Classifications

    • 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
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by 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]
    • H01F7/04—Means for releasing the attractive force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
    • B23Q3/154—Stationary devices
    • B23Q3/1546—Stationary devices using 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]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/0226—PM with variable field strength
    • 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
    • H01F7/0252—PM holding devices
    • H01F7/0257—Lifting, pick-up magnetic objects

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Push-Button Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Tumbler Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
ZA200203752A 1999-12-06 2002-05-10 Switchable permanent magnetic device. ZA200203752B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPQ4466A AUPQ446699A0 (en) 1999-12-06 1999-12-06 Switchable (variable) permanent magnet device

Publications (1)

Publication Number Publication Date
ZA200203752B true ZA200203752B (en) 2003-10-29

Family

ID=3818608

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200203752A ZA200203752B (en) 1999-12-06 2002-05-10 Switchable permanent magnetic device.

Country Status (15)

Country Link
US (3) US6707360B2 (ja)
EP (1) EP1243006B1 (ja)
JP (1) JP4964382B2 (ja)
KR (1) KR100728448B1 (ja)
CN (1) CN1245725C (ja)
AT (1) ATE517714T1 (ja)
AU (1) AUPQ446699A0 (ja)
BR (2) BR0016483A (ja)
CA (1) CA2392772C (ja)
ES (1) ES2370265T3 (ja)
HK (1) HK1045758B (ja)
MX (1) MXPA02005610A (ja)
NZ (1) NZ518865A (ja)
WO (1) WO2001043147A1 (ja)
ZA (1) ZA200203752B (ja)

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CA2392772C (en) 2010-06-15
US20040239460A1 (en) 2004-12-02
AUPQ446699A0 (en) 2000-01-06
CN1245725C (zh) 2006-03-15
US6707360B2 (en) 2004-03-16
BRPI0016483B1 (pt) 2017-09-12
EP1243006B1 (en) 2011-07-27
CA2392772A1 (en) 2001-06-14
NZ518865A (en) 2002-08-28
KR100728448B1 (ko) 2007-06-13
HK1045758A1 (en) 2002-12-06
ATE517714T1 (de) 2011-08-15
ES2370265T3 (es) 2011-12-14
WO2001043147A1 (en) 2001-06-14
BR0016483A (pt) 2002-11-05
US20020105400A1 (en) 2002-08-08
EP1243006A1 (en) 2002-09-25
JP4964382B2 (ja) 2012-06-27
KR20030007387A (ko) 2003-01-23
HK1045758B (zh) 2011-10-21
CN1402876A (zh) 2003-03-12
JP2003516627A (ja) 2003-05-13
US7012495B2 (en) 2006-03-14
US20050012579A1 (en) 2005-01-20
EP1243006A4 (en) 2007-09-05
MXPA02005610A (es) 2004-03-26

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