GB1367911A - Apparatus for demagnetizing a magnetizable object - Google Patents

Apparatus for demagnetizing a magnetizable object

Info

Publication number
GB1367911A
GB1367911A GB3966571A GB3966571A GB1367911A GB 1367911 A GB1367911 A GB 1367911A GB 3966571 A GB3966571 A GB 3966571A GB 3966571 A GB3966571 A GB 3966571A GB 1367911 A GB1367911 A GB 1367911A
Authority
GB
United Kingdom
Prior art keywords
current
condenser
transistor
polarity
switch
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
GB3966571A
Other languages
English (en)
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.)
Littwin A K
Original Assignee
Littwin A K
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 Littwin A K filed Critical Littwin A K
Publication of GB1367911A publication Critical patent/GB1367911A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Generation Of Surge Voltage And Current (AREA)
GB3966571A 1970-09-01 1971-08-24 Apparatus for demagnetizing a magnetizable object Expired GB1367911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6862570A 1970-09-01 1970-09-01

Publications (1)

Publication Number Publication Date
GB1367911A true GB1367911A (en) 1974-09-25

Family

ID=22083727

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3966571A Expired GB1367911A (en) 1970-09-01 1971-08-24 Apparatus for demagnetizing a magnetizable object

Country Status (4)

Country Link
US (1) US3626255A (de)
JP (1) JPS5732489B1 (de)
DE (1) DE2143633C3 (de)
GB (1) GB1367911A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143384A (en) * 1983-05-26 1985-02-06 Electro Matic Prod Co Apparatus for de-magnetizing a chuck
GB2153169A (en) * 1984-01-17 1985-08-14 Electro Matic Prod Co Demagnetizing an electromagnetic chuck

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2396977A1 (fr) * 1978-07-07 1979-02-02 Cgs Apparecch Instrument indicateur ferromagnetique
JPS615622Y2 (de) * 1978-09-08 1986-02-20
US4370693A (en) * 1979-08-17 1983-01-25 Mcdonald Donald C Demagnetizing apparatus for a workpiece holding electromagnet
US4360854A (en) * 1980-12-12 1982-11-23 Electro-Matic Products Co. Demagnetizing, variable frequency
US4633361A (en) * 1984-10-01 1986-12-30 Walker Magnetics Group, Inc. Chuck control for a workpiece holding electromagnet
DE3904437A1 (de) * 1989-02-14 1990-08-16 Gema Ransburg Ag Spruehpistole zum elektrostatischen spruehbeschichten
JP4346103B2 (ja) * 2006-10-10 2009-10-21 本田技研工業株式会社 磁歪式トルクセンサ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086148A (en) * 1959-02-03 1963-04-16 Bethlehem Steel Corp Portable demagnetizer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143384A (en) * 1983-05-26 1985-02-06 Electro Matic Prod Co Apparatus for de-magnetizing a chuck
GB2153169A (en) * 1984-01-17 1985-08-14 Electro Matic Prod Co Demagnetizing an electromagnetic chuck

Also Published As

Publication number Publication date
US3626255A (en) 1971-12-07
JPS5732489B1 (de) 1982-07-12
DE2143633A1 (de) 1972-04-13
DE2143633B2 (de) 1979-06-28
DE2143633C3 (de) 1980-02-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee