Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Work or object holding type
Patent
1994-07-05
1997-06-24
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Work or object holding type
335298, H01F 720
Patent
active
056420897
ABSTRACT:
Holding device for magnetically mounting a contact sensor on a curved magnetic surface, for example on a pipeline or on a housing of a bearing, comprising at least two movable pole shoes having the same poling and, in the neighbourhood thereof, a plunger-like pole shoe with opposite poling. The plunger-like pole shoe is displaceable relative to the other pole shoes and the magnets and, upon contacting of the holding device is displaced towards the mounting surface by the magnetic force.
REFERENCES:
patent: 3477050 (1969-11-01), Hinger
patent: 4652845 (1987-03-01), Finkle
Donovan Lincoln
Pruftechnik Dieter Busch AG
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