Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1991-04-29
1992-09-08
Tolin, Gerald P.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335257, 335261, 335262, 335270, 335277, 335279, H01F 708, H01F 300, H01F 100
Patent
active
051461960
ABSTRACT:
A solenoid has a coil energizable to displace an armature in one direction and a spring urging return of the armature in the other direction to a rest position in which an end of the armature engages a stop. The end of the armature has a conical projection machined thereon which projects from the end thereof. The stop is a resilient grommet having conical bore therein so that the rest position of the armature is defined by the spring urging the armature to the rest position with the conical projection of the armature resting in the conical bore of the stop to thereby provide noise-free and rattle-free positioning of the armature at the rest position.
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Barrea Ramon M.
General Motors Corporation
Leahy Charles E.
Tolin Gerald P.
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