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GB2292838B - Lifting apparatus - Google Patents

Lifting apparatus

Info

Publication number
GB2292838B
GB2292838B GB9517963A GB9517963A GB2292838B GB 2292838 B GB2292838 B GB 2292838B GB 9517963 A GB9517963 A GB 9517963A GB 9517963 A GB9517963 A GB 9517963A GB 2292838 B GB2292838 B GB 2292838B
Authority
GB
United Kingdom
Prior art keywords
lifting apparatus
lifting
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 - Fee Related
Application number
GB9517963A
Other versions
GB2292838A (en
GB9517963D0 (en
Inventor
Amitava Basak
Nabeel Shirazee
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.)
University College Cardiff Consultants Ltd
ORB Electrical Steels Ltd
Cardiff University
Original Assignee
University College Cardiff Consultants Ltd
ORB Electrical Steels Ltd
Cardiff University
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 GB9417648A external-priority patent/GB9417648D0/en
Application filed by University College Cardiff Consultants Ltd, ORB Electrical Steels Ltd, Cardiff University filed Critical University College Cardiff Consultants Ltd
Priority to GB9517963A priority Critical patent/GB2292838B/en
Publication of GB9517963D0 publication Critical patent/GB9517963D0/en
Publication of GB2292838A publication Critical patent/GB2292838A/en
Application granted granted Critical
Publication of GB2292838B publication Critical patent/GB2292838B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
GB9517963A 1994-09-02 1995-09-04 Lifting apparatus Expired - Fee Related GB2292838B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9517963A GB2292838B (en) 1994-09-02 1995-09-04 Lifting apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9417648A GB9417648D0 (en) 1994-09-02 1994-09-02 Lifting apparatus
GB9517963A GB2292838B (en) 1994-09-02 1995-09-04 Lifting apparatus

Publications (3)

Publication Number Publication Date
GB9517963D0 GB9517963D0 (en) 1995-11-08
GB2292838A GB2292838A (en) 1996-03-06
GB2292838B true GB2292838B (en) 1998-07-29

Family

ID=26305546

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9517963A Expired - Fee Related GB2292838B (en) 1994-09-02 1995-09-04 Lifting apparatus

Country Status (1)

Country Link
GB (1) GB2292838B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60003554T2 (en) * 2000-09-01 2004-01-08 Jung, Hyung Magnetic lifting device
EP2532615A1 (en) 2011-06-08 2012-12-12 Starmag AG Lifting magnet with cylinder/piston actuator
EP3746261B1 (en) 2018-01-29 2023-11-01 Magswitch Technology, Inc. Magnetic lifting device having pole shoes with spaced apart projections
US12100545B2 (en) 2018-10-24 2024-09-24 Magswitch Technology, Inc. Linearly actuated magnetic coupling device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333490A (en) * 1971-12-14 1973-10-10 V Pt I Energeti Cheskogo Mash Permanent magnet grabs

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333490A (en) * 1971-12-14 1973-10-10 V Pt I Energeti Cheskogo Mash Permanent magnet grabs

Also Published As

Publication number Publication date
GB2292838A (en) 1996-03-06
GB9517963D0 (en) 1995-11-08

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070904