Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1983-12-23
1985-09-03
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335262, 335279, H01F 708
Patent
active
045395420
ABSTRACT:
A proportional solenoid consisting of a stationary pole piece of ferromagnetic material which has a radially externally facing frusto-conical section surrounding a cylindrical recess in the stationary pole piece. Both the stationary pole piece and armature are fitted into the bore of a guide tube. Thus, the bore of the guide tube provides the required concentricity between the movable armature and the stationary pole piece. The movable armature is provided with an integral reduced diameter cylindrical nose that is complimentary to the cylindrical recess of the stationary pole piece.
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G. W. Lisk Company, Inc.
Harris George
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