WO2000030129A3 - Electromagnetic lifting system - Google Patents

Electromagnetic lifting system Download PDF

Info

Publication number
WO2000030129A3
WO2000030129A3 PCT/US1999/026903 US9926903W WO0030129A3 WO 2000030129 A3 WO2000030129 A3 WO 2000030129A3 US 9926903 W US9926903 W US 9926903W WO 0030129 A3 WO0030129 A3 WO 0030129A3
Authority
WO
WIPO (PCT)
Prior art keywords
channels
lifting system
define
core
channel
Prior art date
Application number
PCT/US1999/026903
Other languages
French (fr)
Other versions
WO2000030129A2 (en
Inventor
Cornelis T P M Luijten
Original Assignee
Walker Magnetics Group Inc
Cornelis T P M Luijten
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 Walker Magnetics Group Inc, Cornelis T P M Luijten filed Critical Walker Magnetics Group Inc
Priority to EP99962765A priority Critical patent/EP1129457A2/en
Publication of WO2000030129A2 publication Critical patent/WO2000030129A2/en
Publication of WO2000030129A3 publication Critical patent/WO2000030129A3/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
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H01F7/206—Electromagnets for lifting, handling or transporting of magnetic pieces or material
    • 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
    • H01F7/206—Electromagnets for lifting, handling or transporting of magnetic pieces or material
    • H01F2007/208—Electromagnets for lifting, handling or transporting of magnetic pieces or material combined with permanent magnets

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Linear Motors (AREA)

Abstract

An electromagnet (10) having a core with a plurality of elongated channels (16), a bottom opening (34) to each channel, and a coil (14) made up of a plurality of lengths of electrically conductive wire extending through each channel. The core has a top wall (24) and a plurality of spaced parallel vertical side walls (26, 28) which define the channels. The bottom end of each vertical side has horizontal flanges (30) which form the poles of the magnet (10) and also define the openings (34) to the channels.
PCT/US1999/026903 1998-11-13 1999-11-12 Electromagnetic lifting system WO2000030129A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99962765A EP1129457A2 (en) 1998-11-13 1999-11-12 Electromagnetic lifting system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10824798P 1998-11-13 1998-11-13
US60/108,247 1998-11-13

Publications (2)

Publication Number Publication Date
WO2000030129A2 WO2000030129A2 (en) 2000-05-25
WO2000030129A3 true WO2000030129A3 (en) 2000-11-16

Family

ID=22321096

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/026903 WO2000030129A2 (en) 1998-11-13 1999-11-12 Electromagnetic lifting system

Country Status (2)

Country Link
EP (1) EP1129457A2 (en)
WO (1) WO2000030129A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521209A (en) * 1967-02-21 1970-07-21 Lothar Fritz Electromagnetic load lifting device
GB2103423A (en) * 1981-07-31 1983-02-16 Ford Motor Co Multipole solenoid
JPH0812244A (en) * 1994-06-30 1996-01-16 Hitachi Kiden Kogyo Ltd Multipole type lifting electromagnet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521209A (en) * 1967-02-21 1970-07-21 Lothar Fritz Electromagnetic load lifting device
GB2103423A (en) * 1981-07-31 1983-02-16 Ford Motor Co Multipole solenoid
JPH0812244A (en) * 1994-06-30 1996-01-16 Hitachi Kiden Kogyo Ltd Multipole type lifting electromagnet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 05 31 May 1996 (1996-05-31) *

Also Published As

Publication number Publication date
WO2000030129A2 (en) 2000-05-25
EP1129457A2 (en) 2001-09-05

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